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Manufacturer Part #

ST1S40IPUR

ST1S40 Series 18 V 3 A 850 kHz SMT DC Step-Down Switching Regulator - VFQFPN-8

ECAD Model:
Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
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Product Specification Section
STMicroelectronics ST1S40IPUR - Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 4V to 18V
Output Current-Max: 3A
Output Voltage Range: 0.8V to 18V
Switching Frequency-Max: 1MHz
Package Style:  VFQFPN-8
Mounting Method: Surface Mount
Features & Applications
The ST1S40IPUR is an internally compensated 850 kHz fixed-frequency PWM synchronous stepdown regulator. Available in a VFQFPN-8 package.

The ST1S40 integrates a 95 mΩ high side switch and 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.

Features:

  • 3 A DC output current
  • 4.0 V to 18 V input voltage
  • Output voltage adjustable from 0.8 V
  • 850 kHz switching frequency
  • Internal soft-start
  • Integrated 95 mΩ and 69 mΩ Power MOSFETs
  • All ceramic capacitor
  • Enable
  • Cycle-by-cycle current limiting
  • Current fold back short-circuit protection

Applications:

  • μP/ASIC/DSP/FPGA core and I/O supplies
  • Point of load for: STB, TVs, DVD
  • Optical storage, hard disk drive, printers, audio/graphic cards
Pricing Section
Global Stock:
0
Germany (Online Only):
0
On Order:
0
Factory Stock:Factory Stock:
0
Factory Lead Time:
18 Weeks
Minimum Order:
4500
Multiple Of:
4500
Total
$4,770.00
USD
Quantity
Web Price
4,500+
$1.06
Product Variant Information section