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Overview
| Topology | Boost Converter |
| Input voltage | 0.5-4.4 V |
| Output 1 | 4 V / 3 A |
| IC revision | 1.0 |
Description
The TPS61021A provides a power supply solution forportable or smart devices powered by alkaline, NiMH,Li-Mn, or Li-ion batteries. The TPS61021A is capableof outputting 3.3-V voltage and 1.5-A current from abattery discharged to as low as 1.8 V. Capable ofoperating with 0.5-V input voltage enables theTPS61021A to extend the battery run time.
Features
Input Voltage Range: 0.5 V to 4.4 V
- 0.9 V Minimum Input Voltage for Startup
- Output Voltage Setting Range: 1.8 V to 4.0 V
- 91% Efficiency at VIN = 2.4 V, VOUT = 3.3 V andIOUT = 1.5 A
- 2.0-MHz Switching Frequency
- IOUT > 1.5 A at VOUT = 3.3 V when VIN > 1.8 V
- 17-μA Typical Quiescent Current
- ±2.5% Reference Voltage Accuracy over -40°C to125°C
- PFM Operation Mode at Light Load
- True Disconnection Between Input and OutputDuring Shutdown
- Output Over Voltage Protection
- Output Short Circuit Protection
- Thermal Shutdown Protection
- 2-mm x 2-mm WSON Package
Typical applications
- Thermostat
- Portable Medical Equipment
- Supercap Backup System
- Gaming Control
- Battery Powered IoT Devices
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,30%(A) | RDC typ.(mΩ) | fres(MHz) | VOP(V) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-MAPI SMT Power Inductor, 0.47 µH, 7.55 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-MAPI SMT Power Inductor | Inductance0.47 µH | Performance Rated Current7.55 A | Saturation Current @ 30%9.8 A | DC Resistance18 mΩ | Self Resonant Frequency99 MHz | Operating Voltage80 V | MountSMT |