TPS61256C Texas instruments

TPS61256C

Уточнить цену

TPS61256C

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The TPS61256xC device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS61256xC supports up to 800-mA load current from a battery discharged as low as 2.65 V and allows the use of low cost chip inductor and capacitors. With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.The TPS61256xC operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation. In addition, the TPS61256xC device can also support the pass-through mode by pulling EN to low. In this mode, the output voltage follows the input voltage with a voltage drop by the resistance of the inductor and high-side FET.The TPS61256xC offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

93% Efficiency at 3.5-MHz Operation
37-µA Quiescent Current in Normal Operation
Wide V_IN Range From 2.3 V to 5.5 V
Support V_IN ≥ V_OUT Operation
±2% Total DC Voltage Accuracy
Light-Load PFM Mode
Pass-through Mode by Pulling EN Low
Thermal Shutdown and Overload Protection
Only Three Surface-Mount External Components Required
Total Solution Size < 25 mm²
9-Pin NanoFree™ (CSP) Packaging

Topology	Boost
Vin (min) (V)	2.5
Vin (max) (V)	4.85
Vout (min) (V)	5
Vout (max) (V)	5.4
Switch current limit (typ) (A)	2.15
Type	Converter
Regulated outputs (#)	1
Switching frequency (min) (kHz)	3500
Switching frequency (max) (kHz)	3500
Iq (typ) (mA)	0.02
Features	Enable, Light Load Efficiency, Synchronous Rectification
Duty cycle (max) (%)	90
Operating temperature range (°C)	-40 to 85
Rating	Catalog