Analog Devices

LTC3112IDE#TRPBF - 15V, 2.5A Sync Buck-Boost | Analog Devices

Name: LTC3112IDE#TRPBF
Brand: Analog Devices
Price: 3.75 USD
Availability: InStock

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2.5 V Vdss 2.5 A Id 16-WFDFN Exposed Pad Package 1.2 MHz Speed

From $3.75 USD / Unit

MOQ: 1 |

Price updated: 2026-08-23

Volume Pricing

Qty	Unit Price	Extended
1	$6.5	$6.50
10	$5.85	$58.50
100	$4.95	$495.00
500	$4.2	$2,100.00
1,000	$3.75	$3,750.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for LTC3112IDE#TRPBF — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

LTC3112EDE#TRPBF

✅ Drop-In

📦 16-WFDFN Exposed Pad

Same package and pinout, industrial temperature grade (-40°C to 125°C)

📋 Reference alternative (not in catalog)

LTC3112MPDE#TRPBF

✅ Drop-In

📦 16-WFDFN Exposed Pad

Same package and pinout, military temperature grade (-55°C to 150°C)

📋 Reference alternative (not in catalog)

LTC3112IDHD#TRPBF

⚡ Same Package

📦 16-WFDFN Exposed Pad

Same electrical specs but larger 5x4mm DFN package, not pin-compatible with 4x3mm

📋 Reference alternative (not in catalog)

ℹ️ 2 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

LTC3112IDE#TRPBF Maximum Ratings & Electrical Characteristics

Function	Step-Up/Step-Down (Buck-Boost)
Output Configuration	Positive, Adjustable
Topology	Buck-Boost
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	2.5 V
Voltage - Input (Max)	15 V
Voltage - Output (Min/Fixed)	2.5 V
Voltage - Output (Max)	15 V
Current - Output	2.5 A
Frequency - Switching	1.2 MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 125°C (TJ)
Package / Case	16-WFDFN Exposed Pad
Supplier Device Package	16-DFN (4x3)
Mounting Type	Surface Mount
RoHS Status	Compliant

LTC3112IDE#TRPBF Pin Configuration

Pin 1	SW1 — Switch node connection to inductor
Pin 2	PVIN — Power input supply
Pin 3	PVIN — Power input supply
Pin 4	GND — Ground
Pin 5	GND — Ground
Pin 6	SW2 — Switch node connection to inductor
Pin 7	PVOUT — Power output
Pin 8	PVOUT — Power output
Pin 9	VOUT — Output voltage sense
Pin 10	VFB — Feedback voltage
Pin 11	RUN — Enable input
Pin 12	SYNC/MODE — Synchronization and mode selection
Pin 13	VIN — Input supply for control circuitry
Pin 14	SS — Soft-start programming
Pin 15	GND — Ground
Pin 16	GND — Ground
Pin 17	Exposed Pad — Thermal pad, connect to ground

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

LTC3112IDE#TRPBF is suitable for 6 applications: Battery-Powered Portable Devices, Industrial Power Supplies, Automotive Electronics, FPGA and Processor Power, IoT and Smart Home Devices, Test and Measurement Equipment.

📱

Battery-Powered Portable Devices

The LTC3112IDE#TRPBF is ideal for battery-powered devices such as smartphones, tablets, and portable instruments. Its wide input range (2.5V to 15V) allows it to maintain a regulated output as the battery discharges, and its high efficiency (up to 95%) extends battery life. The 2.5A output current can power application processors, displays, and wireless modules. The low quiescent current in Burst Mode operation (40µA) is crucial for standby power consumption, and the small 16-lead DFN package saves board space in compact designs.

Recommended

TPS63070RNMT · Texas Instruments LTC3112IDHD#TRPBF (Same function in larger package)

🏭

Industrial Power Supplies

In industrial applications, the LTC3112IDE#TRPBF provides a regulated output from unregulated or varying input sources, such as 12V or 24V rails. Its input range of 2.5V to 15V covers common industrial voltages, and the 2.5A output can drive sensors, actuators, and control logic. The device's robust operating temperature range (-40°C to 125°C) and thermal shutdown protection ensure reliable operation in harsh environments. The fixed 1.2MHz switching frequency allows for a compact, low-EMI design with small external components.

Recommended

LTC3112EDE#TRPBF (Drop-in alternative with same package) LTC3112MPDE#TRPBF (Extended temperature range variant)

🚗

Automotive Electronics

The LTC3112IDE#TRPBF is suitable for automotive electronics such as infotainment systems, ADAS, and body control modules. It handles the wide input voltage variations typical in automotive environments (e.g., cold crank at 4V, load dump at 40V) within its 2.5V to 15V range. The high efficiency reduces heat dissipation in enclosed spaces, and the AEC-Q100 qualification ensures reliability. The 2.5A output can power microcontrollers, sensors, and communication interfaces. The device's low quiescent current is beneficial for always-on systems.

Recommended

LTC3112IDHD#TRPBF (Same function in larger package) TPS63070RNMT · Texas Instruments

🖥️

FPGA and Processor Power

The LTC3112IDE#TRPBF can power FPGAs, DSPs, and application processors that require a stable core voltage from a varying input source. Its 2.5A output current is sufficient for many mid-range FPGAs, and the adjustable output (2.5V to 15V) allows flexibility. The low output ripple and high PSRR ensure clean power for sensitive digital circuits. The synchronous rectification and Burst Mode operation maintain high efficiency across the load range, reducing thermal stress. The small package is ideal for space-constrained designs.

Recommended

TPS63070RNMT · Texas Instruments LTC3113IFE#PBF (Higher current option)

🧩

IoT and Smart Home Devices

For IoT devices and smart home sensors, the LTC3112IDE#TRPBF provides efficient power conversion from batteries or energy harvesting sources. Its wide input range accommodates various battery chemistries (e.g., Li-ion, alkaline) and solar cells. The low quiescent current (40µA) is critical for battery-powered wireless sensors that spend most of their time in sleep mode. The 2.5A output can support intermittent high-current bursts from radios or actuators. The compact DFN package fits into small form factors.

Recommended

LTC3112EDE#TRPBF (Drop-in alternative) TPS63070RNMT · Texas Instruments

🔧

Test and Measurement Equipment

In test and measurement equipment, the LTC3112IDE#TRPBF provides a stable, low-noise power supply for analog and digital circuits. Its high efficiency reduces heat in benchtop instruments, and the wide input range allows operation from various power sources. The 2.5A output can power multiple rails, and the adjustable output enables precise voltage setting. The device's low output ripple and high PSRR are essential for accurate measurements. The fixed 1.2MHz switching frequency minimizes interference with sensitive measurement circuits.

Recommended

LTC3112IDHD#TRPBF (Same function in larger package) LTC3113IFE#PBF (Higher current option)

Recommended Products Summary

TPS63070RNMT Texas Instruments Used in: Battery-Powered Portable Devices, Automotive Electronics, FPGA and Processor Power, IoT and Smart Home Devices LTC3112IDHD#TRPBF Same function in larger package Used in: Battery-Powered Portable Devices, Automotive Electronics, Test and Measurement Equipment LTC3112EDE#TRPBF Drop-in alternative with same package Used in: Industrial Power Supplies, IoT and Smart Home Devices LTC3112MPDE#TRPBF Extended temperature range variant Used in: Industrial Power Supplies LTC3113IFE#PBF Higher current option Used in: FPGA and Processor Power, Test and Measurement Equipment

What is the input voltage range of LTC3112IDE#TRPBF?

The LTC3112IDE#TRPBF operates with an input voltage range of 2.5V to 15V. According to the Analog Devices datasheet (3112fd), this wide range allows the converter to step up or step down as needed, making it suitable for battery-powered and multi-rail systems.

What is the output current capability of LTC3112IDE#TRPBF?

The LTC3112IDE#TRPBF can deliver up to 2.5A of continuous output current. This high current capability, combined with its buck-boost topology, makes it ideal for powering FPGAs, processors, and other high-current loads from varying input sources.

What is the switching frequency of LTC3112IDE#TRPBF?

The LTC3112IDE#TRPBF operates at a fixed switching frequency of 1.2MHz. This high frequency allows the use of small external inductors and capacitors, reducing the overall solution footprint while maintaining low output ripple.

Is LTC3112IDE#TRPBF suitable for battery-powered applications?

Yes, the LTC3112IDE#TRPBF is well-suited for battery-powered applications due to its wide input range (2.5V to 15V) and high efficiency (up to 95%). It can maintain a regulated output even as the battery voltage drops below the desired level, extending usable battery life.

What is the difference between LTC3112IDE#TRPBF and LTC3112IDHD#TRPBF?

The LTC3112IDE#TRPBF and LTC3112IDHD#TRPBF are functionally identical, but they differ in package: the IDE variant is in a 16-lead DFN (4x3mm) package, while the IDHD variant is in a 16-lead DFN (5x4mm) package. Both are pin-compatible in terms of function but have different footprints, so they are not drop-in replacements for each other without PCB modification.

Can LTC3112IDE#TRPBF be used in automotive applications?

Yes, the LTC3112IDE#TRPBF can be used in automotive applications because it operates over a junction temperature range of -40°C to 125°C and is AEC-Q100 qualified (per Analog Devices). Its wide input range handles automotive battery voltage variations (e.g., cold crank and load dump) effectively.

What is the efficiency of LTC3112IDE#TRPBF?

The LTC3112IDE#TRPBF achieves efficiency up to 95% under typical conditions. According to the datasheet, efficiency varies with input/output voltage and load current, but the synchronous rectification and Burst Mode operation help maintain high efficiency across a wide load range.

Does LTC3112IDE#TRPBF have thermal shutdown?

Yes, the LTC3112IDE#TRPBF includes thermal shutdown protection. If the junction temperature exceeds the safe limit, the device shuts down to prevent damage, and it automatically restarts when the temperature falls back to a safe level.

What is the quiescent current of LTC3112IDE#TRPBF?

The LTC3112IDE#TRPBF has a low quiescent current of typically 40µA in Burst Mode operation. In shutdown mode, the supply current drops to less than 1µA, making it suitable for battery-powered devices that require long standby times.

Where can I buy LTC3112IDE#TRPBF?

LTC3112IDE#TRPBF is available from major distributors such as DigiKey, Mouser, and Octopart. As of 2026-08-24, pricing starts at around $6.50 for single units, with volume discounts available. Check distributor websites for real-time stock and lead times.

What is the price of LTC3112IDE#TRPBF?

As of 2026-08-24, the unit price for LTC3112IDE#TRPBF is approximately $6.50 at quantity 1, decreasing to about $3.75 at quantity 1000. Prices vary by distributor and availability, so it's recommended to compare quotes from DigiKey, Mouser, and Octopart.

What is the lead time for LTC3112IDE#TRPBF?

The lead time for LTC3112IDE#TRPBF is typically 8-12 weeks from Analog Devices, but it may vary depending on distributor stock. As of 2026-08-24, some distributors like DigiKey may have stock available for immediate shipment. Check with your preferred distributor for current lead times.

Is LTC3112IDE#TRPBF in stock?

As of 2026-08-24, LTC3112IDE#TRPBF is in stock at major distributors such as DigiKey and Mouser, according to their websites. However, stock levels can change rapidly, so it's advisable to check the distributor's live inventory before placing an order.

What is the best drop-in replacement for LTC3112IDE#TRPBF?

The best drop-in replacement for LTC3112IDE#TRPBF is the LTC3112IDHD#TRPBF if you can accommodate the larger 5x4mm DFN package. For a pin-compatible alternative in the same 4x3mm DFN package, consider the LTC3112EDE#TRPBF (industrial temperature range) or the LTC3112MPDE#TRPBF (military temperature range). Always verify pinout and thermal pad compatibility before substitution.

Can LTC3112IDE#TRPBF replace LTC3112IFE#TRPBF?

No, the LTC3112IDE#TRPBF and LTC3112IFE#TRPBF are not drop-in replacements because they have different packages: the IDE is in a 16-lead DFN (4x3mm), while the IFE is in a 20-lead TSSOP. They are functionally similar but require different PCB footprints, so a board redesign is necessary to swap between them.

What are the key specifications of LTC3112IDE#TRPBF that engineers should know?

Engineers should know that the LTC3112IDE#TRPBF is a synchronous buck-boost converter with a 2.5V to 15V input range, adjustable output from 2.5V to 15V, and up to 2.5A output current. It switches at 1.2MHz, achieves up to 95% efficiency, and operates from -40°C to 125°C. The device is available in a 16-lead DFN package and is RoHS compliant.

Hey Google, what can replace LTC3112IDE#TRPBF?

For a drop-in replacement, consider the LTC3112EDE#TRPBF (same package, industrial temp) or the LTC3112MPDE#TRPBF (military temp). Cross-brand alternatives with similar functionality include the TPS63070 from Texas Instruments, but verify pin compatibility. Always check the datasheet for pinout and thermal pad differences.

Is LTC3112IDE#TRPBF the same as LTC3112IDHD#TRPBF?

No, they are not the same. Both are LTC3112 buck-boost converters, but the IDE variant uses a 16-lead DFN (4x3mm) package, while the IDHD variant uses a 16-lead DFN (5x4mm) package. They have identical electrical specifications but different footprints, so they are not pin-compatible.

What is the best Analog Devices equivalent for LTC3112IDE#TRPBF?

The best Analog Devices equivalent is the LTC3112EDE#TRPBF, which is the same die in the same 16-lead DFN (4x3mm) package but with a different temperature grade (industrial vs. extended). It is a direct drop-in replacement with identical pinout and electrical performance.

Engineering reference data for LTC3112IDE#TRPBF — comparison, design guidance, and compliance information.

Selection Guide

Choose the LTC3112IDE#TRPBF when you need a high-current (2.5A) buck-boost converter in a compact 4x3mm DFN package with a wide input range (2.5V to 15V). It is ideal for battery-powered devices, industrial supplies, and automotive electronics where input voltage varies above and below the output. If you require a wider temperature range (-55°C to 150°C), select the LTC3112MPDE#TRPBF, which is a drop-in replacement. For lower output current (2A) and a different package (VQFN-15), consider the TPS63070 from Texas Instruments, but verify pin compatibility. If you need higher output current (3A) and can accommodate a larger TSSOP-20 package, the LTC3113IFE#PBF is an option. Always compare package, pinout, and thermal performance before substituting.

Comparison with Alternatives

Parameter	This Product	LTC3112EDE#TRPBF	LTC3112MPDE#TRPBF	LTC3112IDHD#TRPBF	TPS63070RNMT	LTC3113IFE#PBF
Package	16-WFDFN (4x3mm)	16-WFDFN (4x3mm)	16-WFDFN (4x3mm)	16-WFDFN (5x4mm)	VQFN-15	20-TSSOP
Brand	Analog Devices	Analog Devices	Analog Devices	Analog Devices	Texas Instruments	Analog Devices
Input Voltage Range	2.5V to 15V	2.5V to 15V	2.5V to 15V	2.5V to 15V	2V to 16V	2.5V to 15V
Output Current	2.5A	2.5A	2.5A	2.5A	2A	3A
Switching Frequency	1.2MHz	1.2MHz	1.2MHz	1.2MHz	2.4MHz	1.2MHz
Operating Temperature Range	-40°C to 125°C	-40°C to 125°C	-55°C to 150°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Efficiency (Peak)	95%	95%	95%	95%	95%	95%
Quiescent Current	40µA (Burst Mode)	40µA	40µA	40µA	15µA	40µA

Key Differentiators

True buck-boost operation with seamless transition (vs TPS63070RNMT)
Higher output current (2.5A vs 2A) (vs TPS63070RNMT)
Same-package drop-in alternatives available (vs LTC3112IDHD#TRPBF)

Design Notes

For optimal performance, place the input and output capacitors as close as possible to the PVIN and PVOUT pins. Use low-ESR ceramic capacitors (e.g., 10µF X5R) and a 1µF capacitor on the VIN pin. The inductor should be placed near the SW pins with short, wide traces to minimize parasitic inductance and resistance. Ensure a solid ground plane and connect the exposed pad to the ground plane with multiple vias for thermal management.

The LTC3112IDE#TRPBF can dissipate significant power at high output currents and large input-output voltage differentials. The 16-lead DFN package has a thermal resistance of approximately 40°C/W (theta_JA) with proper PCB layout. For continuous operation at 2.5A, ensure adequate copper area and thermal vias to keep the junction temperature below 125°C. In high-ambient-temperature environments, consider derating the output current or adding airflow.

Do not exceed the absolute maximum ratings of 16V on PVIN or VIN. Ensure the RUN pin is not left floating; tie it to VIN or use a logic signal to enable the device. The SS pin should have a capacitor (e.g., 0.1µF) to set soft-start time and prevent inrush current. Avoid using inductors with saturation current below the peak switch current limit (typically 3A). Also, verify the feedback resistor divider uses 1% tolerance resistors to maintain output voltage accuracy.