Texas Instruments TPS81256EVM-121 3W High-Efficiency Step-up Converter in MicroSiP package Evaluation Module TPS81256EVM TPS81256EVM-121 데이터 시트
제품 코드
TPS81256EVM-121
Introduction
1
Introduction
The TPS8125x device is an ideal power-supply solution for products powered by either a three-cell
alkaline, NiCd or NiMH battery, or a single-cell Li-Ion or Li-polymer battery. The wide input voltage range
is well-suited for portable power applications such as mobile phones or computer peripherals.
alkaline, NiCd or NiMH battery, or a single-cell Li-Ion or Li-polymer battery. The wide input voltage range
is well-suited for portable power applications such as mobile phones or computer peripherals.
1.1
Requirements
The TPS8125xEVM is designed to produce a fixed output voltage over the full input voltage range. See
for fixed output voltage version options. A DC power supply capable of delivering 2.50 V to 4.85 V
is required to operate this EVM. Please reference the device datasheet for the Recommended Operating
Conditions and Absolute Maximum Ratings.
Conditions and Absolute Maximum Ratings.
1.2
Applications
•
USB Host Supplies from a Single Li-Ion Battery
•
USB Dedicated Charging Port Supply
•
Li-Ion Applications
•
Audio Applications
•
RF-PA Buffers
1.3
EVM Features
•
91% Efficiency at 4.5 MHz
•
V
IN
Range from 2.50 V to 4.85 V
•
0.85
μ
A Quiescent Current in Shutdown Mode
•
30
μ
A Quiescent Current in Normal Operation
•
V
IN
> V
OUT
operation for Vin up to 5.5V
1.4
EVM Ordering Options
provides the ordering Information for the various EVM options.
Table 1. TPS8125x Output Voltage Options and Ordering Information
Orderable EVM Number
Device Part Number
Output Voltage
PWR121-001
5 V
2
TPS8125xEVM
SLVU653 – April 2012
Copyright © 2012, Texas Instruments Incorporated