STMicroelectronics ST1S40IPHR, 1 Linear Voltage, Voltage Regulator 3A, 0.8 → 1.8 V 8-Pin, HSOP

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Subtotal (1 unit)*

£1.39

(exc. VAT)

£1.67

(inc. VAT)

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Units
Per unit
1 - 4£1.39
5 - 9£1.32
10 - 24£1.18
25 - 49£1.14
50 +£1.10

*price indicative

Packaging Options:
RS Stock No.:
188-9381
Mfr. Part No.:
ST1S40IPHR
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Regulator Type

Linear Voltage

Maximum Output Current

3A

Output Voltage

0.8 → 1.8 V

Number of Outputs

1

Line Regulation

0.4 %

Load Regulation

0.5 Typ.) %

Mounting Type

Surface Mount

Quiescent Current

15µA

Package Type

HSOP

Pin Count

8

Output Type

Adjustable

Dimensions

5 x 4 x 1.55mm

Minimum Operating Temperature

-40 °C

Height

1.55mm

Minimum Input Voltage

4 V

Maximum Operating Temperature

+150 °C

Maximum Input Voltage

18 V

Length

5mm

Width

4mm

The ST1S40 device is an internally compensated 850 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S40 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to VIN. The ST1S40 integrates a 95 mΩ high side switch and 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages. The peak current mode control with internal compensation delivers a very compact solution with a minimum component count. The ST1S40 is available in HSOP-8, VFQFPN 4 mm x 4 mm - 8 lead, and standard SO8 package.

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

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