TPS613222ADBVT - 1.8A 5V Boost Converter, 6uA IQ | TI
MPN: TPS613222ADBVT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.65 | $1.65 |
| 10 | $1.48 | $14.80 |
| 100 | $1.18 | $118.00 |
| 500 | $0.95 | $475.00 |
| 1,000 | $0.78 | $780.00 |
TPS613222ADBVT Overview
A boost (step-up) DC-DC switching regulator is a converter that produces an output voltage higher than its input. When the input equals or exceeds the target output, the regulator idles and the output tracks the input minus the rectifier drop, making the part well-suited to single-cell-to-USB or single-cell-to-5V applications. Synchronous rectification eliminates the external Schottky diode, shrinking the BOM and improving efficiency at light load. Within the broader hierarchy, this part belongs to switching regulators -> DC-DC converters -> power management ICs.
Three specifications define the TPS613222ADBVT's fit for portable battery-powered designs: 6.5 uA quiescent current extends standby, 0.9V to 5.5V input supports single-cell alkaline or NiMH operation, and 1.8A switch current (2.5A peak) supplies 5V rails up to several hundred milliamps without external FETs. The pass-through (down) mode automatically bypasses the boost when VIN exceeds VOUT, eliminating unnecessary switching losses.
The TPS61322xx family uses a peak-current-mode control topology with internal compensation, a 1.2 MHz typical switching frequency that allows small inductors, and True Load Disconnect to prevent reverse leakage when VIN approaches VOUT. Internal soft-start limits inrush to protect the battery source during turn-on.
Typical applications include USB charging-port power from a single-cell battery, IoT sensor nodes, wearables, single-cell Li-ion or alkaline-powered toys, and any portable 5V rail that must stay efficient over the entire battery discharge curve. Designers should choose the TPS613222ADBVR tape-and-reel sibling for high-volume assembly or the TPS613221A variants for different output voltages (3.3V, 3.6V) within the same pinout. The SOT-23-5 footprint is shared with many 1.5A-2A boost converters from competing vendors, simplifying second-source qualification.
Drop-in alternatives for TPS613222ADBVT — 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 TPS613222ADBVT (same form factor and footprint) — differing in Input Voltage Range, Package, MSL Level, Quiescent Current, Switching Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TPS613222ADBVR
✅ Drop-In📋 Reference alternative (not in catalog)
TPS613221ADBVT
✅ Drop-In📋 Reference alternative (not in catalog)
TPS61240DRVT
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View Datasheet →TPS61220DCK
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View Datasheet →TPS61288RQQR
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View Datasheet →TPS613222ADBVT Maximum Ratings & Electrical Characteristics
| Topology | Synchronous Boost (Step-Up) |
| Output Voltage | Fixed 5 V |
| Input Voltage Range | 0.9 V to 5.5 V |
| Switch Current (Continuous) | 1.8 A |
| Switch Current (Peak) | 2.5 A |
| Quiescent Current | 6.5 uA |
| Switching Frequency (Typical) | 1.2 MHz |
| Operating Temperature Range | -40 C to +125 C |
| Package | SOT-23-5 (DBV) - SC-74A, SOT-753 |
| Mounting Type | Surface Mount |
| Number of Pins | 5 |
| RoHS Status | Compliant |
TPS613222ADBVT Pin Configuration
| Pin 1 | EN — Enable input (active high); tie to VIN for always-on operation |
| Pin 2 | GND — Ground return |
| Pin 3 | SW — Switch node - connect to boost inductor |
| Pin 4 | OUT — Regulated 5V output |
| Pin 5 | VIN — Input supply voltage (0.9 V to 5.5 V) |
Typical Applications
TPS613222ADBVT is suitable for 6 applications: USB Charging Port from Single-Cell Li-ion, Wearable and Fitness Sensor Hubs, Battery-Powered IoT Sensor Nodes, Single-Cell Alkaline or NiMH Toys and Personal Care, Portable Medical Point-of-Care Devices, Industrial Handheld Scanners and POS Terminals.
USB Charging Port from Single-Cell Li-ion
The TPS613222ADBVT provides a regulated 5V rail from a single Li-ion cell (3.0V to 4.2V) to power a USB-A charging port in portable accessories, power banks, and emergency phone chargers. With a 1.8A continuous switch current, the part delivers 500-700 mA at 5V from a 3.6V Li-ion source without thermal stress in a 2.9 mm x 1.6 mm SOT-23-5 footprint. The 6.5 uA quiescent current is critical for power banks that sit on a shelf for months, and the pass-through mode engages automatically when VIN exceeds 5V (USB source plugged in), eliminating switching losses during AC-powered standby. Companion TI parts include TPS61236 (for higher current) and TPS2051B (USB switch / current limit).
Recommended
Wearable and Fitness Sensor Hubs
Wearable devices such as fitness bands, smartwatches, and continuous glucose monitors require a low-standby 5V rail for BLE radio bursts, OLED displays, and haptic drivers, powered from a tiny Li-ion or Li-Po cell. The TPS613222ADBVT's 6.5 uA quiescent current extends shelf life and runtime between charges, while the 1.2 MHz switching frequency keeps the fundamental above the AM broadcast band and away from the 2.4 GHz Bluetooth spectrum. The 0.9V start-up voltage lets the part boot from a deeply discharged cell, reducing bricked-device returns. Pair with a TI CC2640 BLE radio or TPS61040 for OLED bias generation.
Recommended
Battery-Powered IoT Sensor Nodes
Low-power IoT sensors (door/window contact, leak detectors, asset trackers) often run from a single CR2032 coin cell or 2x AA alkaline pack and need a 5V rail to interface with external modules or USB debug ports. The TPS613222ADBVT's 6.5 uA IQ dominates standby energy budget over a multi-year deployment, while its 0.9V start-up voltage is essential to extract the last few percent of cell capacity. The synchronous topology eliminates the external Schottky, shrinking BOM to inductor + 2 capacitors - critical for coin-cell form factors. Pair with a TI CC1310 sub-GHz radio or STM32L0 ultra-low-power MCU for the host processor.
Recommended
Single-Cell Alkaline or NiMH Toys and Personal Care
Children's toys, electric toothbrushes, and personal-care devices powered by 1-2 AA alkaline cells often need 5V to drive small motors, LEDs, or buzzers from a 1.0-3.0V source. The TPS613222ADBVT starts up at 0.9V (essential for exhausted alkaline cells) and delivers 100-200 mA continuous at 5V from a single AA, enough for most motor and LED loads in this category. The TI TPS61322 family's fixed-output simplicity (no feedback divider) reduces BOM and PCB area, key for cost-sensitive consumer goods. Companion parts include DRV8837 for motor drive and TPS61040 for additional LED bias.
Recommended
Portable Medical Point-of-Care Devices
Portable diagnostic devices such as glucose meters, pulse oximeters, and handheld ultrasound probes require a clean, low-noise 5V rail for analog front ends and display subsystems, often powered from a single Li-ion cell. The TPS613222ADBVT's 6.5 uA IQ maximizes battery life during long shifts in clinical settings, and its internal synchronous rectification reduces radiated EMI that could interfere with sensitive analog measurement channels. The 1.8A switch current supports display backlight bursts during measurement acquisition. Pair with TI's AFE4490 pulse-ox analog front end or an OPAx140 series op-amp for signal conditioning.
Recommended
Industrial Handheld Scanners and POS Terminals
Industrial barcode scanners, portable POS terminals, and handheld label printers often combine a single Li-ion cell with a 5V-powered imager, printer head, or NFC reader. The TPS613222ADBVT provides 500-800 mA of 5V output from the Li-ion rail, sufficient for short burst loads from the imager flash or printer stepper without external FETs. Pass-through mode automatically engages when a USB-C input is plugged in (charging while operating), bypassing the boost to minimize losses. The SOT-23-5 footprint is drop-in compatible with several second-source 1.8A boost ICs, simplifying dual-sourcing for industrial customers.
Recommended
Recommended Products Summary
Engineering reference data for TPS613222ADBVT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS613222ADBVR | TPS613221ADBVT | TPS61240DRVT | TPS61220DCK |
|---|---|---|---|---|---|
| Package | SOT-23-5 (DBV) | SOT-23-5 (DBV) - same | SOT-23-5 (DBV) - same | SOT-23-5 (DRV) - same footprint class | SC-70-5 (DCK) - same footprint class |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Topology | Synchronous Boost | Synchronous Boost | Synchronous Boost | Synchronous Boost | Synchronous Boost |
| Output Voltage | 5 V fixed | 5 V fixed | 3.6 V fixed | Adjustable up to 5.5 V | Adjustable up to 5.5 V |
| Input Voltage Range | 0.9 V to 5.5 V | 0.9 V to 5.5 V | 0.9 V to 5.5 V | 0.7 V to 3.3 V (boost), up to 5.5 V pass-through | 0.7 V to 3.3 V (boost), up to 5.5 V pass-through |
| Switch Current (Continuous) | 1.8 A | 1.8 A | 1.8 A | ~0.5 A | ~0.4 A |
| Quiescent Current | 6.5 uA | 6.5 uA | 6.5 uA | 1.5 uA | 5.5 uA |
| Switching Frequency (Typical) | 1.2 MHz | 1.2 MHz | 1.2 MHz | 3.5 MHz (typical) | up to 2 MHz |
Key Differentiators
- Ultra-low 6.5 uA quiescent current extends battery standby life (vs TPS61240DRVT)
- Synchronous rectification - no external Schottky required (vs TPS61220DCK)
- SOT-23-5 footprint with 1.8A switch current - higher power density than competing 5-pin parts (vs TPS61240DRVT)
Design Notes
Estimated: at VIN=3.0 V, VOUT=5.0 V, and IOUT=500 mA continuous, the TPS613222ADBVT dissipates approximately (5.0-3.0) * 0.5 = 1.0 W plus switching losses (~50 mW), so total package dissipation is ~1.05 W. With the SOT-23-5 thermal resistance around 200-220 C/W (typical for this package), the junction temperature rise is approximately 200-220 C above 25 C ambient - well above the 125 C operating limit. Reduce load, increase VIN, or use copper pour on the GND pin (which is the main thermal pad) to stay within SOA. Always validate with a thermocouple measurement in production.
Place the 1 uH inductor (low-DCR, saturation current > 2.5 A peak), 4.7 uF input ceramic, and 10 uF output ceramic as close as possible to the SW, VIN, and OUT pins respectively. Keep the SW node trace short and narrow to minimize radiated EMI. Use a continuous ground plane on the bottom layer tied to the GND pin, which is also the package thermal pad. The TI TPS61322 datasheet typical application shows the GND pin as the primary thermal dissipation path; provide at least 50 mm^2 of 1 oz copper tied to GND for adequate heat spreading at loads above 300 mA continuous.
Do not exceed the absolute maximum VIN of 6.0 V; a TVS diode such as SMAJ5.0A is recommended if the input can see hot-plug transients. Avoid using the TPS613222ADBVT above the 1.8A continuous switch-current rating - inductor saturation will cause catastrophic failure. The EN pin should never be left floating; tie to VIN through a 100 kohm resistor if always-on operation is desired. Do not use output capacitors below 4.7 uF effective (after DC bias derating) - smaller values destabilize the peak-current-mode control loop.
The 1.2 MHz fundamental and its harmonics up to ~100 MHz can radiate from the SW node and inductor. To pass CISPR 22 / EN 55022 Class B, place a small ferrite bead (600 ohm at 100 MHz) in series with the input, and a pi-filter (LC) on the output if the load includes a long cable (USB, for example). Shielding the inductor with a ground-connected copper pour on the layer below further reduces radiated emissions. The TPS61322's pseudo-random frequency dithering (where applicable in the family) helps spread the spectrum.
Compliance Information
RoHS and lead-free compliant per TI product page. Not AEC-Q100 qualified - for automotive designs consider TPS61322-Q1 equivalents. REACH compliance stated by TI.
