ST1S32PUR

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ST1S32PUR

IC REG BUCK ADJ 4A 8VFDFPN

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Specifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 2.8V
Voltage-Input(Max) 5.5V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 5.5V
Current-Output 4A
Frequency-Switching 1.5MHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-VDFN Exposed Pad

Overview

Description

ST1S32PUR is an STMicroelectronics buck (step-down) switching regulator IC in the ST1S32 family. It integrates the control logic and power switch to convert a higher input voltage to a stable lower output with high efficiency. The PUR suffix typically indicates a Pb-free, RoHS-compliant package (tape-and-reel).
Key points:
- Integrated high-side switch and controller for DC-DC conversion
- Adjustable output via external feedback resistors
- Enable/disable control and fixed switching frequency
- Protection features: overcurrent/short-circuit, thermal shutdown, undervoltage lockout
- Used to generate regulated rails (e.g., 3.3V, 5V) for microcontrollers, peripherals, or automotive/industrial systems
For exact electrical specs, pinout, and packaging details, consult the official ST1S32PUR datasheet from STMicroelectronics.

Features

I don’t have the exact datasheet here. ST1S32PUR is a ST Microelectronics buck regulator in an 8-pin package. Typical features (common to ST1S32-family) include:
- High-efficiency step-down (buck) regulator
- Input range suitable for common supply rails (variant-dependent)
- Fixed or adjustable output options
- Internal high-side switch with synchronous rectification
- Programmable/predictable switching frequency
- PWM and/or PFM operation (auto-mode in light load)
- Enable/soft-start control
- Overcurrent/short-circuit protection and thermal shutdown
- UVLO protection
- Low quiescent current in shutdown
- Small 8-pin PUR package suitable for tape-and-reel
For exact electrical characteristics (voltages, currents, switching frequency, protection thresholds), please share the datasheet link or confirm and I’ll extract the precise specs.

Package

SO-8: an 8-pin Plastic Small Outline (SO‑8) package.

Pinout

- Pin count: 8 pins (SO-8 package)
- Function: ST1S32PUR is a buck (step-down) switching regulator (integrated power MOSFET) from STMicroelectronics, used to convert a higher input voltage to a lower regulated output with external feedback, enable, and soft-start features.

Manufacturer

STMicroelectronics (ST). It is a multinational semiconductor company that designs, manufactures, and markets integrated circuits and discrete semiconductors (including MEMS, microcontrollers, and power devices), headquartered in Geneva, Switzerland.

Application

ST1S32PUR is a high‑efficiency buck regulator used for power management. Typical applications include:
- Battery-powered devices (MCU/peripheral rails)
- Automotive and industrial electronics (12V to 5V/3.3V rails)
- Consumer electronics (set‑top boxes, TVs, cameras, gaming peripherals)
- Power adapters/chargers (DC‑DC conversion)
- LED lighting control requiring a stable low‑voltage rail

Shipping

Shipping MethodsWe

offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.


Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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