TPS54360DDAR - 60V 3.5A Buck Converter | Texas Instruments
MPN: TPS54360DDAR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.89 | $18.90 |
| 100 | $1.52 | $152.00 |
| 500 | $1.2 | $600.00 |
| 1,000 | $0.95 | $950.00 |
TPS54360DDAR Overview
A buck converter is a switching regulator that efficiently reduces a higher DC voltage to a lower one using a switching element, inductor, and catch diode. Within the power-management IC hierarchy (DC-DC converter -> switching regulator -> power management IC), buck converters dominate point-of-load and wide-input designs because switching achieves far higher efficiency than linear regulators, especially at large input-to-output voltage differences.
Key features include 3.5A continuous output current with a 4.5A minimum peak inductor current limit, current-mode control for fast transient response and simple loop compensation, and Eco-mode pulse-skipping that maintains high efficiency at light loads. The adjustable switching frequency of 100kHz to 2.5MHz lets designers trade efficiency against inductor and capacitor size. The integrated 92mOhm high-side MOSFET minimizes conduction loss and external component count.
Architecturally, current-mode control provides inherent feed-forward of input-voltage variations and simplifies compensation compared with voltage-mode control. Protections include thermal shutdown, overcurrent protection, and an enable pin with precision threshold for power sequencing and programmable undervoltage lockout.
Typical applications include 24V industrial bus power supplies, 12V automotive systems handling load-dump transients, telecom and networking equipment, and point-of-load converters for industrial and automotive electronics.
Design tip: ensure a solid ground plane with thermal vias under the PowerPAD, place the BOOT capacitor and input/output capacitors close to the IC, and choose the switching frequency to balance efficiency versus solution size. Pricing as of 2026-08-29 starts around $0.50 at volume (LCSC).
Drop-in alternatives for TPS54360DDAR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TPS54360DDAR (same form factor and footprint) — differing in Package, Input Voltage Range, Topology, Output Voltage Range, Maximum Output Current.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS54360BDDAR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS54560DDAR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS54360QDDARQ1
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →TPS5450DDAR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.55 / Unit
View Datasheet →TPS54331DR
⚡ Same Package✓ In Stock
$0.85 / Unit
View Datasheet →LMR16030SDDAR
⚡ Same Package📋 Reference alternative (not in catalog)
TPS54360DDAR Maximum Ratings & Electrical Characteristics
| Topology | Step-Down (Buck) Converter |
| Input Voltage Range | 4.5 V to 60 V |
| Output Voltage Range | 0.8 V to 58.8 V |
| Output Current | 3.5 A |
| Minimum Peak Inductor Current Limit | 4.5 A |
| Control Topology | Current Mode |
| Switching Frequency Range | 100 kHz to 2.5 MHz |
| Integrated High-Side MOSFET Rds(on) | 92 mOhm |
| Light Load Mode | Eco-mode (pulse skipping) |
| Operating Temperature | -40C to +125C (TA) |
| Junction Temperature Range | -40C to +150C (TJ) |
| Package | HSOIC (DDA) 8-Pin PowerPAD, 3.90 mm Width |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Enable / UVLO | Enable pin with precision threshold |
| Protection Features | Thermal shutdown, overcurrent protection |
| RoHS Status | Compliant |
TPS54360DDAR Pin Configuration
| Pin 1 | BOOT — Bootstrap capacitor connection for high-side gate driver |
| Pin 2 | VIN — Input supply, 4.5 V to 60 V |
| Pin 3 | EN — Enable pin with precision threshold for UVLO programming |
| Pin 4 | SS/TR — Soft-start / output voltage tracking |
| Pin 5 | VSENSE — Feedback voltage input, 0.8 V reference |
| Pin 6 | GND — Ground |
| Pin 7 | PH — Phase / switch node, connects to inductor |
| Pin 8 | PH — Phase / switch node (duplicate), connects to inductor |
| Pin 9 | PowerPAD — Thermal pad, must be soldered to PCB ground plane with thermal vias |
Typical Applications
TPS54360DDAR is suitable for 6 applications: 24V Industrial Bus Power Supply, 12V Automotive Systems, Telecom and Networking Equipment, Point-of-Load Conversion, Motor Drive and Actuator Supplies, LED Lighting Power.
24V Industrial Bus Power Supply
The TPS54360DDAR is well suited to 24V industrial bus rails because its 60V maximum input provides roughly 2.5x headroom above nominal 24V, absorbing surges without external protection. Operating as a first-stage buck, it steps the bus down to 5V or 3.3V at up to 3.5A with the integrated 92mOhm MOSFET. Current-mode control gives fast transient response for PLC and sensor loads, while Eco-mode keeps standby efficiency high in always-on factory equipment.
Recommended
12V Automotive Systems
Automotive 12V rails see load-dump transients that can exceed 40V; the TPS54360DDAR's 60V input rating directly addresses this without expensive front-end clamping in many designs. The -40C to +125C ambient range covers under-hood and cabin electronics, and the precision-threshold EN pin enables programmable UVLO for cold-crank conditions. For production automotive programs, select the AEC-Q100 qualified TPS54360QDDARQ1 variant of the same converter.
Recommended
Telecom and Networking Equipment
Telecom infrastructure typically distributes 48V power, and the TPS54360DDAR's 60V input allows direct regulation from 48V rails to intermediate or point-of-load voltages up to 3.5A. The 100kHz to 2.5MHz adjustable frequency lets designers choose lower frequency for efficiency on long-duty boards or higher frequency for compact magnetics in line cards. Eco-mode pulse skipping preserves efficiency during light-traffic standby periods common in network equipment.
Recommended
Point-of-Load Conversion
As a point-of-load converter, the TPS54360DDAR uses current-mode control for tight transient regulation feeding DSPs, FPGAs, and MCUs from an intermediate 12V or 24V rail. The 0.8V reference supports modern low-voltage cores down to 0.8V, and the SS/TR pin enables controlled startup and voltage tracking in multi-rail power sequencing schemes. The PowerPAD package provides low thermal impedance for compact POL layouts on dense boards.
Recommended
Motor Drive and Actuator Supplies
The TPS54360DDAR supplies gate-driver and controller rails in motor drive systems from 24V or 48V buses. Its 4.5A minimum peak current limit rides through inrush from capacitive loads and actuator transients, while cycle-by-cycle overcurrent and thermal shutdown protect against stall conditions. Pairing it with gate drivers on the same PCB simplifies power-tree design and keeps the 3.5A continuous rating available for logic and sensing circuitry.
Recommended
LED Lighting Power
In industrial and commercial LED lighting, the TPS54360DDAR regulates LED string current from wide-input 24V-48V supplies. The adjustable 100kHz-2.5MHz frequency supports designs avoiding visible-light PWM artifacts, and high full-load efficiency from the 92mOhm integrated MOSFET reduces heat inside sealed luminaires. Thermal shutdown protects driver electronics when ambient temperatures rise inside enclosed fixtures, improving long-term reliability of the lighting system.
Recommended
Recommended Products Summary
Engineering reference data for TPS54360DDAR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS54360BDDAR | TPS54560DDAR | TPS54360QDDARQ1 | TPS5450DDAR |
|---|---|---|---|---|---|
| Package | HSOIC (DDA) 8-Pin PowerPAD | HSOIC (DDA) 8-Pin PowerPAD - same | HSOIC (DDA) 8-Pin PowerPAD - same | HSOIC (DDA) 8-Pin PowerPAD - same | HSOIC (DDA) 8-Pin PowerPAD - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 36 V |
| Output Current | 3.5 A | 3.5 A | 5 A | 3.5 A | 5 A |
| Output Voltage Range | 0.8 V to 58.8 V | 0.8 V to 58.8 V | 0.8 V to 58.8 V | 0.8 V to 58.8 V | 0.8 V to 35 V |
| Eco-mode Light Load | Yes | Yes | Yes | Yes | No |
| Automotive Grade (AEC-Q100) | No | No | No | Yes | No (Q1 variant available) |
| Generation / Status | Original 60V/3.5A device | Next-generation same-spec device | Higher-current sibling | Automotive variant | Lower-voltage family member |
Key Differentiators
- 60V maximum input rating (vs TPS5450DDAR)
- Eco-mode light-load efficiency (vs TPS5450DDAR)
- Automotive-qualified same-footprint variant exists (vs TPS54360BDDAR)
Design Notes
The PowerPAD on the underside of the HSOIC (DDA) package is the primary thermal path and must be soldered to a copper ground plane. At 24V input and 5V/3.5A output, power dissipation from switching and conduction losses can reach several watts; use an array of thermal vias (at least 4-6, 0.3mm diameter) connecting the PowerPAD to internal ground planes and provide at least 1 square inch of copper on the top layer. Verify junction temperature stays below 125C at worst-case ambient per TI datasheet thermal design guidance.
Keep the BOOT capacitor (0.1uF ceramic) directly across BOOT and PH pins with minimum trace length. Place the input capacitor (10uF ceramic plus bulk) close to VIN and GND to minimize the hot loop area, which drives EMI and input ringing. Route the VSENSE feedback trace away from the PH switch node to prevent noise pickup; use a ground-referenced sense trace. Provide a low-inductance catch path from PH through the inductor and output capacitor back to the input capacitor ground.
Use the EN pin resistor divider to program undervoltage lockout above the minimum operating input, preventing start-up glitches on drooping supplies. Set the soft-start time via SS/TR capacitance to control inrush into large output capacitors. When choosing switching frequency in the 100kHz-2.5MHz range, remember higher frequency reduces inductor size but increases switching losses - at 60V input, moderate frequencies around 400-600kHz typically give the best efficiency-to-size trade-off per TI datasheet application section.
Compliance Information
RoHS compliant per distributor listings. For AEC-Q100 qualification, select TPS54360QDDARQ1. Formal REACH/halogen declarations should be pulled from TI.com product pages.
