Model No: SRK2001TR

STMicroelectronics SRK2001TR

Manufacturer: STMicroelectronics
SEMICON NO.: SRK2001TR
Package: 10-SSOP
Stock: In stock
Description: Synchronous Step-Down Converter 1.5A 1.2MHz
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 Mfr STMicroelectronics 
 Input Voltage Range (VIN)  2.5V to 5.5V
 Output Voltage Range (VOUT) 0.6V to 5.5V
 Continuous Output Current (IOUT)  1.5A
 Switching Frequency  1.2 MHz (Fixed, typ.)
 Quiescent Current (IQ) 25 µA (Typical, no load)
 Control Topology Current Mode, Pulse-Width Modulation (PWM)
 Protection Features   UVLO, OCP, OTP
 Efficiency Up to 95% (Typical)
 Operating Temperature      -40°C to +85°C
 Package 10-SSOP
 Mounting Type Surface Mount (SMD/SMT) 
 Compliance    
 RoHS Compliant
SRK2001TR Synchronous Step-Down (Buck) DC/DC Converter 1.5A 1.2MHz 
The SRK2001TR is a high-frequency, synchronous step-down (buck) DC/DC controller from Semtech, engineered to drive external N-channel MOSFETs for high-efficiency, high-power-density voltage regulation. It operates from a wide input voltage range of 4.5V to 16V, making it suitable for intermediate bus voltage conversion in systems powered from 5V, 12V, or adjustable sources. This controller leverages a constant on-time (COT) control architecture with emulated current mode, which provides fast transient response and simplifies loop compensation. Its primary function is to generate precisely regulated low-voltage, high-current outputs for advanced digital loads like FPGAs, ASICs, and processors in communication, computing, and industrial equipment.
This controller supports an adjustable output voltage from 0.6V up to 85% of the input voltage. Its COT control enables a programmable switching frequency up to 1.5 MHz, allowing for optimization of efficiency and the use of compact inductors and capacitors. Key features include integrated gate drivers with adaptive dead-time control for optimal MOSFET switching, programmable soft-start, and a Power Good signal. For protection, it includes over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown. Housed in a compact 16-pin QFN package, it is designed for high-performance, space-constrained applications requiring precise and reliable power delivery.
Alternativebuck controller Models 
● Texas Instruments TPS53632G:​ A dual-channel, multiphase buck controller with D-CAP+™ architecture, offering advanced telemetry and monitoring for high-current CPU/GPU power.
● Analog Devices LTC3887:​ A high-performance, single-output buck controller with PMBus interface for digital power system management and telemetry.
● Monolithic Power Systems MP2940A:​ A high-frequency, single-phase PWM controller with integrated drivers, designed for compact, high-density point-of-load applications.