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STMICROELECTRONICS  ST1S14PHR  DC-DC Switching Buck Step Down Regulator, Adjustable, 5.5V-48V in, 3A out, 1MHz, HSOP-8

STMICROELECTRONICS ST1S14PHR
Technical Data Sheet (2.42MB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The ST1S14PHR is a step-down monolithic power switching Voltage Regulator, able to deliver up to 3ADC current to the load depending on the application conditions. The high current level is also achieved thanks to a HSOP8 package with exposed frame, which allows reducing the Rth (JA) down to approximately 40°C/W. The output voltage can be set from 1.22V. The device uses an internal N-channel DMOS transistor (with a typical RDS (on) of 200mR) as the switching element to minimize the size of the external components. The internal oscillator fixes the switching frequency at 850kHz. Power good open collector output validates the regulated output voltage as soon as it reaches the regulation. Pulse-by-pulse current limit offers an effective constant current short-circuit protection. Current fold-back decreases overstress in a persistent short-circuit condition.
  • 850kHz Internally Fixed Switching Frequency
  • Internal Soft-start
  • Power Good Open Collector Output
  • Current Mode Architecture
  • Embedded Compensation Network
  • Zero Load Current Operation
  • Internal Current Limiting
  • Inhibit for Zero Current Consumption
  • 2mA Maximum Quiescent Current over Temperature Range
  • 250mR Typical RDS (On)
  • Thermal Shutdown
ESD sensitive device, take proper precaution while handling the device.

Product Information

Input Voltage Min:
5.5V
Input Voltage Max:
48V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
HSOP
No. of Pins:
8Pins
Output Current:
3A
Output Voltage Min:
1.22V
Output Voltage Max:
-
Switching Frequency:
1MHz
Topology:
Buck (Step Down)
Operating Temperature Max:
150°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial;
  • Automation & Process Control;
  • LED Lighting;
  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
Philippines

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423300
Weight (kg):
.001021