STEVAL-ISA083V1 Active

4 A peak 800 kHz fixed-frequency PWM synchronous step-down demonstration board with enable on/off based on the ST1S40IPUR
Core ProductST1S40IPUR
Target ApplicationDC-DC Topologies
ECCN USEAR99
ECCN EUNEC
Packing TypeNot Applicable
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameCARD
Key Features
  • Input voltage Vin: 4 V to 18 V
  • Output voltage Vout : 3.3 V
  • Maximum output current: 4 A
  • Switching frequency: 800 kHz
  • Short-circuit protected
  • RoHS compliant

The STEVAL-ISA083V1, based on the ST1S40IPUR, is an internally compensated 800 kHz fixed-frequency PWM synchronous step-down converter demonstration board.


The ST1S40 operates from 4.0 V to 18.0 V input, while it regulates an output voltage as low as 0.8 V and up to VIN(100% duty cycle).


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


The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.


The ST1S40 is protected through cycle-by-cycle current limiting in case of overload and is also protected by a current foldback function with frequency reduction in case of short-circuit.


The device is available with an enable on/off function.

In stock:
$47.78
Range Unit Price Savings
1 - 500$47.780%
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