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RICHTEK RT5751AHGQW product image
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RICHTEK RT5751AHGQW

Manufacturer
RICHTEKAsian Brands
MPN
RT5751AHGQW
LCSC Part #
C3249945
Packaging
WDFN-6(2x2)
Customer #
Key Attributes
6V 1A Synchronous Buck Converter
DatasheetRICHTEK RT5751AHGQW
RoHS Compliance1 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement
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QtyUnit Price(Reference Only)Total Amount
1+$ 0.2532$ 0.25
200+$ 0.098$ 19.60
500+$ 0.0946$ 47.30
1,000+$ 0.0929$ 92.90
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerRICHTEK
PackagingWDFN-6(2x2)
Operating Temperature-40℃~+125℃
FunctionStep-down type
Frequency - Switching1.5MHz
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;Output discharge;Light load efficient mode;Operating status indication;Overcurrent Protection
TopologyBuck
Output TypeAdjustable
Operating Voltage2.5V~6V
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current1A
Quiescent Current25uA
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Introduction

AI Translation

The RT5751A/B is a simple, easy-to-use, 1A synchronous step-down DC-DC converter with an input supply voltage range from 2.5V to 6V. The device build-in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a WDFN-6L 2x2 package. The RT5751A/B adopts Advanced Constant On-Time (ACOT®) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5751A operate in automatic PSM that maintain high efficiency during light load operation. The RT5751B operate in Forced PWM that help to meet tight voltage regulation accuracy requirements. The RT5751A/B senses both FETs current for a robust over-current protection. The device features cycle-by-cycle current limit protection and prevent the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions.

Features

AI Translation
  • Input Voltage Range from 2.5V to 6V
  • Integrated 120mΩ and 80mΩ FETs
  • 1A Output Current, up to 95% Efficiency
  • 100% Duty Cycle for Lowest Dropout
  • 1% Internal Reference Voltage
  • 1.5MHz Typical Switching Frequency
  • Power Saving Mode for Light Loads (RT5751A)
  • Low Quiescent Current: 25μA (Typ.)
  • Fast Advanced Constant On-Time (ACOT®) Control
  • Internal Soft Startup (0.6ms)
  • Enable Control Input
  • Power Good Indicator
  • Both FETs Over-Current Protection
  • Negative Over-Current Protection (RT5751B)
  • Input Under-Voltage Lockout Protection
  • Hiccup-Mode Output Under-Voltage Protection
  • Over-Temperature Protection
  • RoHS Compliant and Halogen Free

Applications

AI Translation
  • Mobile Phones and Handheld Devices
  • STB, Cable Modem, and xDSL Platforms
  • WLAN ASIC Power / Storage (SSD and HDD)
  • General Purpose for POL LV Buck Converter