ST1S30IPUR

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STMicroelectronics

3 A, 1.5 MHZ PWM STEP-DOWN SWITCHING REGULATOR WITH SYNCHRONOUS RECTIFICATION

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ST1S30IPUR

Active

STMicroelectronics

3 A, 1.5 MHZ PWM STEP-DOWN SWITCHING REGULATOR WITH SYNCHRONOUS RECTIFICATION

Deep-Dive with AI

DocumentsTN1224 +7

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	ST1S30IPUR

Current - Output	3 A
Frequency - Switching	1.5 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-VDFN Exposed Pad
Supplier Device Package	8-DFN (4x4)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Max) [Max]	4.79 V
Voltage - Output (Min/Fixed)	0.8 V

ST1S30 Series

3 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification

Part	Voltage - Output (Min/Fixed)	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Frequency - Switching	Output Type	Supplier Device Package	Voltage - Input (Max) [Max]	Function	Number of Outputs	Voltage - Output (Max) [Max]	Synchronous Rectifier	Mounting Type	Current - Output	Voltage - Input (Min) [Min]	Topology	Output Configuration
STMicroelectronics ST1S30IPUR	0.8 V	150 °C	-40 °C	8-VDFN Exposed Pad	1.5 MHz	Adjustable	8-DFN (4x4)	5.5 V	Step-Down	1	4.79 V		Surface Mount	3 A	2.7 V	Buck	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	$ 2.09
	Digi-Reel®	1	$ 2.09
	Tape & Reel (TR)	4500	$ 0.96
		9000	$ 0.92

Description

General part information

ST1S30 Series

The ST1S30 is a step-down DC-DC converter optimized for powering low output voltage applications. It supplies a current in excess of 3 A over an input voltage range from 2.7 V to 6 V.

A high PWM switching frequency (1.5 MHz) allows the use of tiny surface-mount components.

Moreover, since the required synchronous rectifier is integrated, the number of the external components is reduced to minimum: a resistor divider, an inductor and two capacitors. The Power Good function continuously monitors the output voltage. An open drain Power Good flag is released when the output voltage is within regulation. In addition, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermally protected and the output current limited to prevent damages due to accidental short circuit. The ST1S30 is available in the DFN8 (4 x 4 mm) package.