Model No: MP1479GTF-Z

Monolithic Power Systems Inc. MP1479GTF-Z

Manufacturer: Monolithic Power Systems Inc.
SEMICON NO.: MP1479GTF-Z
Package: SOT-563 (SOT-666)
Stock: In stock
Description: Buck Regulator IC 0.8V 1 Output 1A 800kHz
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 Mfr       Monolithic Power Systems Inc. 
 Device Type    Synchronous Rectified Step-Down (Buck) Converter
 Control Architecture   Constant-On-Time (COT)
 Input Voltage 4.2 V to 18 V
 Nominal Input Voltage   12 V
 Output Configuration     Positive
 Topology   Buck (Step-Down)
 Output Type     Adjustable
 Number of Outputs   1
 Output Voltage Range     0.8 V to 10 V
 Output Current (Max)   1 A (Continuous)
 Synchronous Rectification     Yes
 Switching Frequency   800 kHz 
 Max Switching Frequency   1 MHz
 Internal MOSFET      140 mΩ (High-Side) / 60 mΩ (Low-Side)
 Quiescent Current  190 µA (Low)
 Max Supply Current     300 µA    
 Operating Temperature -40°C to +125°C
 Package SOT-563 (SOT-666)
 Mounting Type Surface Mount
 Compliance    
 RoHS Compliant
 
The MP1479GTF-Z is a fully integrated, high-efficiency, synchronous step-down DC/DC converter developed by Monolithic Power Systems (MPS), designed to deliver reliable power conversion in an ultra-compact form factor. This device operates from a wide input voltage range of 4.2V to 18V and provides a continuous output current of up to 1A with excellent load and line regulation. The converter integrates both high-side and low-side power MOSFETs, minimizing external component count and simplifying circuit design. Targeting cost-sensitive applications that demand high efficiency and compact layouts, the MP1479GTF-Z represents a complete power management solution requiring only an inductor, input/output capacitors, and feedback resistors for full functionality.
Applications
Due to its wide input voltage range and compact footprint, the MP1479GTF-Z is extensively deployed across consumer electronics and industrial applications requiring efficient point-of-load regulation. It serves as an ideal power solution for security cameras and surveillance systems, where stable voltage rails are critical for image sensor and processor reliability. In digital set-top boxes and gateway equipment, the converter efficiently steps down adapter voltages to power core processing units and memory subsystems. The converter is also well-suited for flat-panel televisions and monitors, providing clean power for display drivers and timing controllers. Additionally, its robust protection features and wide operating temperature range of -40°C to +125°C make it suitable for general-purpose industrial controls, networking peripherals, and battery-powered instruments where space constraints and thermal performance are primary design considerations.
Alternative step-down converter Models
● Texas Instruments TPS562201: This 2A synchronous step-down converter operates from 4.5V to 17V input using D-CAP2 control mode, offering similar wide-input capability with higher current capacity in a SOT-23 package.
● Diodes Incorporated AP62302: This 3A synchronous buck converter features an identical 4.2V to 18V input range with integrated 65mΩ high-side MOSFET, providing higher current handling in a compact TSOT-25 package.
● onsemi NCV8843: This 1.5A synchronous buck regulator operates from 4.5V to 40V input with V2 control architecture, offering extended input voltage capability for automotive and industrial environments.