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ST1S40IDR

8 Terminals 8-Pin ST1S40 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 850kHz Tape & Reel (TR) 3A 8-SOIC (0.154, 3.90mm Width)


  • Manufacturer: STMicroelectronics
  • Origchip NO: 761-ST1S40IDR
  • Package: 8-SOIC (0.154, 3.90mm Width)
  • Datasheet: PDF
  • Stock: 210
  • Description: 8 Terminals 8-Pin ST1S40 DC DC Voltage Regulator SWITCHING REGULATOR 1 Outputs 850kHz Tape & Reel (TR) 3A 8-SOIC (0.154, 3.90mm Width) (Kg)

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Details

Tags

Parameters
Min Output Voltage 800mV
Max Duty Cycle 100 %
Max Junction Temperature (Tj) 150°C
Height 1.75mm
Length 4.9mm
Width 3.9mm
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Factory Lead Time 10 Weeks
Lifecycle Status ACTIVE (Last Updated: 7 months ago)
Contact Plating Gold
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154, 3.90mm Width)
Number of Pins 8
Manufacturer Package Identifier SO8-BW-0016023C
Operating Temperature -40°C~150°C TJ
Packaging Tape & Reel (TR)
JESD-609 Code e4
Part Status Active
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 8
ECCN Code EAR99
Subcategory Switching Regulator or Controllers
Max Power Dissipation 1.6W
Terminal Position DUAL
Terminal Form GULL WING
Base Part Number ST1S40
Function Step-Down
Number of Outputs 1
Output Voltage 18V
Output Type Adjustable
Max Output Current 4A
Operating Supply Voltage 18V
Max Supply Voltage 18V
Min Supply Voltage 4V
Analog IC - Other Type SWITCHING REGULATOR
Nominal Supply Current 1.5mA
Output Configuration Positive
Current - Output 3A
Max Output Voltage 18V
Voltage - Output (Min/Fixed) 0.8V
Topology Buck
Control Mode CURRENT-MODE
Frequency - Switching 850kHz
Control Technique PULSE WIDTH MODULATION
Synchronous Rectifier Yes

ST1S40IDR Description


An internally adjusted 850 kHz fixed-frequency PWM synchronous stepdown regulator is the ST1S40 device. The ST1S40 controls an output voltage as low as 0.8 V and as high as VIN while operating with an input range of 4.0 V to 18 V.

The ST1S40 incorporates a 69 m synchronous rectifier with a 95 m high side switch, enabling extremely high efficiency at very low output voltages.

A very small solution with a low component count is delivered by the peak current mode control with internal compensation. The ST1S40 comes in three different packages: HSOP-8, VFQFPN 4 mm x 4 mm - 8 lead, and conventional SO8.



ST1S40IDR 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 m? and 69 m? Power MOSFETs

  • All ceramic capacitor

  • Enable

  • Cycle-by-cycle current limiting

  • Current fold back short-circuit protection

  • Available in HSOP-8, VFQFPN4x4-8L, and SO8 packages



ST1S40IDR Applications


  • P/ASIC/DSP/FPGA core and I/O supplies

  • Point of load for: STB, TVs, DVD

  • Optical storage, hard disk drive, printers, audio/graphic cards