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RTQ5760T

6V, 1A, ACOT Buck Converter

RTQ5760T
New

The RTQ5760T is a simple, easy-to-use, 1A synchronous step-down converter with an input supply voltage range from 2.5V to 6V. The device builds in an accurate 0.6V reference voltage and integrates low RDS(ON) power MOSFETs to achieve high efficiency in a SOT-563 (FC) package.The RTQ5760T adopts Advanced Constant On-Time (ACOT®) control architecture to provide an ultrafast transient response with few external components and to operate with nearly constant switching frequency over the line, load, and output voltage range. The RTQ5760T operates in automatic PSM that maintains high efficiency during light load operation.The RTQ5760T senses both MOSFETs current for a robust overcurrent protection. The device features cycle-by-cycle current-limit protection and prevents the device from the catastrophic damage in output short circuit, overcurrent, or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input undervoltage-lockout, output undervoltage protection, and over-temperature protection to provide safe and smooth operation in all operating conditions. The recommended junction temperature range is -40°C to 125°C.

應用

  • Mobile Phones and Handheld Devices
  • Set-Top Boxes, Cable Modems, and xDSL Platforms
  • WLAN ASIC Power / Storage (SSD and HDD)
  • General Purpose for POL LV Buck Converters

主要規格

RTQ5760T
Status Active
Vin (min) (V) 2.5
Vin (max) (V) 6
Number of Outputs 1
Vout (min) (V) 0.6
Vout (max) (V) 6
Output Adj. Method Resistor
Iout (max) (A) 1
Current Limit (typ) (A) 1.55;2.65
Freq (typ) (kHz) 2200
Freq (min) (kHz) 1760
Freq (max) (kHz) 2640
Ext Sync No
Ron_HS (typ) (mOhm) 120
Ron_LS (typ) (mOhm) 80
Iq (typ) (mA) 0.025
Features ACOT Control;Enable Input;OCP;OTP;PSM;Power Good;UVP
Package Type SOT-563(FC)

關鍵特性

  • Input Voltage Range from 2.5V to 6V

  • Integrated 120mΩ and 80mΩ MOSFETs

  • 1A Output Current, up to 95% Efficiency

  • 100% Duty Cycle for Lowest Dropout

  • 1% Internal Reference Voltage

  • 2.2MHz Typical Switching Frequency

  • Power Saving Mode for Light Loads

  • Low Quiescent Current: 25μA (Typical)

  • Fast Advanced Constant On-Time (ACOT®) Control

  • Internal Soft Startup (0.6ms)

  • Enable Control Input

  • Power-Good Indicator

  • Both MOSFETs Overcurrent Protection

  • Input Undervoltage-Lockout Protection

  • Hiccup-Mode Output Undervoltage Protection

  • Over-Temperature Protection

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