TPS61253A 3.8-MHz, 5-V / 4-A Boost in 1.2-mm x 1.3-mm WCSP

Description

The TPS6125xA device provides a power supply solution for battery-powered portable applications. With the input voltage ranging from 2.3 V to 5.5 V, the device supports the applications powered by the Li-Ion batteries with the extended voltage range. Different fixed output voltage versions are available of 4.5 V, 4.7 V, 5 V and 5.2 V. The TPS6125xA supports up to 1500-mA load current from a battery discharged as low as 3 V.

The TPS6125xA operates at typical 3.8-MHz switching frequency. The TPS6125xA could be flexibly configured at the Auto PFM mode, forced PWM mode or ultrasonic mode. The Auto PFM mode could benefit with the high efficiency at the light load. The forced PWM operation can make the switching frequency be constant crossing the whole load range. The ultrasonic mode keeps the switching frequency always larger than 25 kHz at any load condition to avoid the acoustic noise.

TPS6125xA has a built-in 600-µs soft start to avoid the inrush current at startup. When the output is shorted, the device enters into the hiccup mode and recovers automatically after the short releases. During the shutdown, the load is completely disconnected from the input end with maximum 1.3-uA current being consumed.

The TPS6125xA comes in a 9-ball 1.2-mm x 1.3-mm WCSP package and offers a very small solution size with the minimum amount of external components.

Features

Wide Input Voltage Range from 2.3 V to 5.5 V
Fixed Output Voltage: 4.5 / 4.7 / 5.0 / 5.2 V
Two FETs Integrated: 35-mΩ LS-FET,
60-mΩ HS-FET
I_OUT ≥ 1500mA continuously at V_OUT = 5 V and
V_IN ≥ 3 V
42-µA Quiescent Current from Input
4-A Switching Valley Current Limit
3.8-MHz Switching Frequency
Selectable Auto PFM, Forced PWM and Ultrasonic Mode
Support Pass-Through Mode
±2% Output Voltage Accuracy
600-µs Soft-Start Time
Hiccup-Mode Short Protection
Load Disconnection during Shutdown
Thermal Shutdown
Total Solution Size < 25 mm²
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Part number	Order	Vin (Min) (V)	Vin (Max) (V)	Vout (Min) (V)	Vout (Max) (V)	Switch current limit (Typ) (A)	Regulated outputs (#)	Switching frequency (Min) (kHz)	Switching frequency (Max) (kHz)	Iq (Typ) (mA)	Features	Duty cycle (Max) (%)	Operating temperature range (C)	Type	Rating	Package Group
TPS61253A	Order now	2.3	5.5	5	5	4	1	3500	3500	0.05	Enable Light Load Efficiency Load Disconnect Synchronous Rectification	100	-40 to 85	Converter	Catalog	DSBGA \| 9
TLV61048	Order now	2.65	5.5	3.3	14	3.7	1	430	1250	0.1	Enable Light Load Efficiency Pre-Bias Start-Up		-40 to 125	Converter	Catalog	SOT-23 \| 6
TPS61020	Order now	0.9	6.5	1.8	5.5	1.5	1	480	720	0.025	Synchronous Rectification	100	-40 to 85	Converter	Catalog	VSON \| 10
TPS61021A	Order now	0.5	4.4	1.8	4	4.3	1	50	2000	0.017	Enable Light Load Efficiency Load Disconnect Synchronous Rectification	90	-40 to 125	Converter	Catalog	WSON \| 8
TPS61022	Order now	0.5	5.5	2.2	5.5	8	1	600	1000	0.027	Enable Light Load Efficiency Load Disconnect Pre-Bias Start-Up Synchronous Rectification UVLO Fixed	97	-40 to 125	Converter	Catalog	VQFN-HR \| 7
TPS61023	Order now	0.5	5.5	2.2	5.5	3.7	1	500	1000	0.02

	Min		Max	Range
Vin		–	V	2.3 to 4.85V
Vout			V	5 to 5V
Iout			A	≤ 1.5A
Ambient Temp			°C	-40 to 125°C

TPS61253A ACTIVE This product has been released to the market and is available for purchase. For some products, newer alternatives may be available. 3.8-MHz, 5-V / 4-A Boost in 1.2-mm x 1.3-mm WCSP

Description

Features

WEBENCH® Designer TPS61253A

Parametrics

TPS61253A
ACTIVE

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

3.8-MHz, 5-V / 4-A Boost in 1.2-mm x 1.3-mm WCSP

WEBENCH^® Designer TPS61253A