Specification	TPS62743YFPT

Current - Output	300 mA
Frequency - Switching	1.2 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Programmable
Package / Case	8-XFBGA, DSBGA
Supplier Device Package	8-DSBGA
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.15 V
Voltage - Output (Max) [Max]	3.3 V
Voltage - Output (Min/Fixed)	1.2 V

TPS627431 Series

2V-5.5V input, ultra-low-power 300mA to 400mA step-down buck DCDC converter with 360nA Iq

Part	Function	Number of Outputs	Supplier Device Package	Mounting Type	Package / Case	Topology	Frequency - Switching	Voltage - Output (Max) [Max]	Output Type	Voltage - Input (Min) [Min]	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed)	Current - Output	Operating Temperature [Min]	Operating Temperature [Max]	Output Configuration
Texas Instruments TPS627431YFPT	Step-Down	1	8-DSBGA	Surface Mount	8-XFBGA DSBGA	Buck	1.2 MHz	3.1 V	Programmable	2.15 V	5.5 V	1.3 V	400 mA	-40 °C	125 ¯C	Positive
Texas Instruments TPS627431YFPR	Step-Down	1	8-DSBGA	Surface Mount	8-XFBGA DSBGA	Buck	1.2 MHz	3.1 V	Programmable	2.15 V	5.5 V	1.3 V	400 mA	-40 °C	125 ¯C	Positive
Texas Instruments TPS62743YFPT	Step-Down	1	8-DSBGA	Surface Mount	8-XFBGA DSBGA	Buck	1.2 MHz	3.3 V	Programmable	2.15 V	5.5 V	1.2 V	300 mA	-40 °C	125 ¯C	Positive
Texas Instruments TPS62743YFPR	Step-Down	1	8-DSBGA	Surface Mount	8-XFBGA DSBGA	Buck	1.2 MHz	3.3 V	Programmable	2.15 V	5.5 V	1.2 V	300 mA	-40 °C	125 ¯C	Positive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.66
		10	$ 1.49
		25	$ 1.40
		100	$ 1.20
	Digi-Reel®	1	$ 1.66
		10	$ 1.49
		25	$ 1.40
		100	$ 1.20
	Tape & Reel (TR)	250	$ 1.12
		500	$ 0.98
		1250	$ 0.81
		2500	$ 0.76
		6250	$ 0.73
		12500	$ 0.70
Newark	Each (Supplied on Cut Tape)	1	$ 2.23
		10	$ 2.13
		25	$ 2.02
		50	$ 1.93
		100	$ 1.85
		250	$ 1.79
Texas Instruments	SMALL T&R	1	$ 1.37
		100	$ 1.06
		250	$ 0.78
		1000	$ 0.56

Description

General part information

TPS627431 Series

The TPS62743 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62743 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2coin cell.

The TPS62743 provides 8 programmable output voltages between 1.2V and 3.3V selectable by three selection pins. The TPS62743 is optimized to provide a low output voltage ripple and low noise using a small output capacitor. Once the input voltage comes close to the output voltage the device enters the No Ripple 100% mode to prevent an increase of output ripple voltage. In this operation mode the device stops switching and turns the high side MOSFET switch on.