ST1S40IPHR

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ST1S40IPHR

IC REG BUCK ADJUSTABLE 3A 8HSOP

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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) 4V
Voltage-Input(Max) 18V
Voltage-Output(Min/Fixed) 0.8V
Voltage-Output(Max) 18V
Current-Output 3A
Frequency-Switching 850kHz
SynchronousRectifier Yes
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Surface Mount
Package/Case 8-SOIC (0.154, 3.90mm Width) Exposed Pad

Overview

Description

The ST1S40IPHR is a step-down monolithic power switching regulator designed for high-efficiency voltage conversion. It is manufactured by STMicroelectronics and typically used in applications requiring a stable power supply, such as in consumer electronics, industrial systems, and telecommunications. The device can deliver up to 0.5A of output current with an adjustable output voltage. It operates over a wide input voltage range, providing flexibility for various applications.
Key features include built-in protection mechanisms such as overcurrent, overtemperature, and undervoltage lockout. These features ensure reliable operation under different conditions. The regulator also includes a high switching frequency, which allows the use of smaller external components, reducing the overall footprint on a circuit board.
The ST1S40IPHR is available in a compact package suitable for space-constrained designs. It is designed to simplify the process of integrating a power supply into electronic systems while maintaining efficiency and performance.

Features

The ST1S40IPHR is a step-down DC-DC converter from STMicroelectronics. Key features include:
1. Input Voltage Range: It supports a wide input voltage range from 4.0V to 18V, making it suitable for various applications.
2. Output Voltage: The converter provides an adjustable output voltage from 0.8V to 0.85 x Vin, offering flexibility in power supply design.
3. Output Current: It can deliver up to 1.5A output current, which is suitable for powering moderate loads.
4. Efficiency: The device is designed for high efficiency, with up to 95%, minimizing power loss and heat generation.
5. Switching Frequency: It features a 900 kHz fixed switching frequency, allowing for smaller external components and a compact design.
6. Protection Features: Includes overcurrent protection, thermal shutdown, and soft-start to ensure safe operation.
7. Package: Available in compact packages like the DFN6 (3x3 mm), which is ideal for space-constrained applications.
8. Applications: Suitable for distributed power systems, battery-powered devices, and other consumer electronics requiring efficient voltage regulation.
These features make the ST1S40IPHR a versatile choice for efficient and reliable power management solutions.

Package

The ST1S40IPHR is packaged in a DFN (Dual Flat No Leads) configuration. Specifically, it uses the DFN8 (3x3 mm) package type, which provides a compact and thermally efficient solution for electronic applications.

Pinout

The ST1S40IPHR is a step-down monolithic power switching regulator from STMicroelectronics. It is housed in a 3x3 mm DFN (Dual Flat No Leads) package and typically features 8 pins. The primary function of the ST1S40IPHR is to convert a higher input voltage to a lower output voltage with high efficiency, supporting a maximum output current of up to 3 A.
Key functions of its pins include:
1. VIN: Input voltage supply pin.
2. SW: Switch node connection, associated with the inductor.
3. GND: Ground connection.
4. FB: Feedback voltage pin, used to regulate the output voltage.
5. EN: Enable pin to turn the regulator on or off.
6. SS/TR: Soft-start or tracking input, controlling the start-up time.
7. NC: No connection pin, not used in the circuit.
8. VCC: Internal supply voltage pin for the device’s internal circuitry.
This regulator is commonly used in battery-powered applications and general-purpose point of load regulation due to its compact size and efficient power conversion capabilities.

Manufacturer

The ST1S40IPHR is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. The company is known for providing solutions for various electronic applications, including automotive, industrial, personal electronics, communications equipment, and more. STMicroelectronics operates as a fabless company in some areas while maintaining its own manufacturing facilities in others, offering a diverse portfolio that includes microcontrollers, sensors, analog devices, and power management components like the ST1S40IPHR.

Application

The ST1S40IPHR is a step-down switching regulator commonly used in applications requiring efficient voltage conversion. It is suitable for use in consumer electronics, industrial systems, telecom equipment, and computer peripherals. Its main application areas include power management for microprocessors, digital signal processors, and other low-voltage devices, where it helps in reducing power consumption and improving overall system efficiency.

Equivalent

The ST1S40IPHR is a step-down switching regulator from STMicroelectronics. Equivalent products might include the LM2675 from Texas Instruments, MIC4576 from Microchip Technology, and AP1509 from Diodes Incorporated. Each alternative should be reviewed for specific parameters like input voltage range, output current, frequency, and package type to ensure compatibility with your application.

Shipping

Shipping MethodsWe

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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

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