St1s14phr 3A Step-Down DC-DC Regulator 5.5V-48V Hsop-8

• Customization: Available
• Current Type: DC
• Phase: Not Applicable
• Model NO.: ST1S14PHR
• Frequency Characteristics: Not Applicable
• Usage: SVC
• Frequency: Not Applicable
• Power Source: Not Applicable
• Installation Style: SMD/SMT
• Encapsulation: Hsop8
• Topology: Buck
• Output Voltage: 400mv
• Output Current: 3A
• Maximum Input Voltage: Maximum Input Voltage
• Switching Frequency: 850 kHz
• Transport Package: Carton Box

Product Description

Product Overview

The ST1S14PHR is a step-down monolithic power switching regulator offered in an HSOP-8 surface-mount package with an exposed pad. This device delivers up to 3A of DC output current to the load, with an operating input voltage range of 5.5V to 48V. The output voltage can be adjusted from 1.22V using external resistors. The device utilizes an internal N-channel DMOS transistor as the switching element, with the internal oscillator fixing the switching frequency at 850kHz.

The high current capability is achieved through the HSOP package with an exposed frame, which reduces the thermal resistance Rth(JA) to approximately 40°C/W.

Key Features

1. High Output Current: Up to 3A DC output current for high-power applications

2. Wide Input Voltage Range: 5.5V to 48V for various power systems

3. Adjustable Output Voltage: Output settable from 1.22V

4. Fixed Switching Frequency: 850kHz internally fixed

5. Internal Soft-Start: Reduces inrush current during startup

6. Power Good Indicator: Open-collector output validates regulated output voltage

7. Pulse-by-Pulse Current Limit: Effective constant current short-circuit protection

8. Undervoltage Lockout: Ensures stable operation

9. Embedded Compensation Network: Simplifies external circuit design

10. Inhibit Function: Zero current consumption in inhibit mode

11. Thermal Shutdown: Automatic shutdown during overtemperature

12. Wide Temperature Range: -40°C to +150°C for demanding environments

Technical Specifications

 

 

Parameter	Value
Function	Step-Down / Buck
Number of Outputs	1
Output Type	Adjustable
Output Voltage	1.22V ~ 43.2V
Output Current	3A
Input Voltage	5.5V ~ 48V
Switching Frequency	850kHz (Typical)
On-State Resistance (RDS(on))	200mΩ (Typical)
Quiescent Current (Iq)	2.4mA (Typical)
Operating Temperature (Tj)	-40°C ~ +150°C
Package	HSOP-8

Applications

• Factory Automation Equipment

• Printer Power Supplies

• DC-DC Power Modules

• High-Current LED Drivers

• Industrial Control Systems

• Battery Charging Equipment

Quick Details

Model Number:             ST1S14PHR

Type:                            integrated circuit

Place of Origin:            Guangdong, China

Brand Name:                ST

Applications:               Industrial Application

Supply Ability

Supply Ability 1000000 Piece/Pieces per Month

 

Packaging & Delivery

Lead Time:

Quantity(pieces)	1 - 1000	>1000
Est. Time(days)	7	To be negotiated