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RT9092

250mA, Ultra-Low Noise, Low Quiescent Current, LDO Regulator

RT9092
New

The RT9092 is a high performance positive low dropout (LDO) regulator designed for applications requiring very low dropout voltage and ultra-high Power Supply Ripple Rejection (PSRR) low noise, low quiescent current, and the IC can supply up to 250mA output current. The input voltage range is from 2.2V to 5.5V. The device is designed to work with a 1μF input and a 1μF output ceramic capacitor (no separate noise bypass capacitor is required).

The RT9092 features a precise 2% output regulation over line, load, and temperature variations in WL-CSP-4B 0.67x0.67 (BSC), ZQFN-4L 1x1 and SOT-23-5 packages. The output voltage is available from 1.2V to 4.5V in 25mV steps.

The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.

Applications

  • Mobile Phones, Tablets
  • Digital Cameras and Audio Devices
  • Portable and Battery-Powered Equipment
  • Portable Medical Equipment
  • Smart Meters
  • IP Cameras
  • Drones
  • Telecom/Networking Cards
  • Wireless Infrastructures
  • Medical Equipment

Key Spec.

RT9092
Status Active
Vin (min) (V) 2.2
Vin (max) (V) 5.5
Vout (min) (V) 1.2
Vout (max) (V) 4.5
Output Adj. Method Fixed
Accuracy (+/- %) 2;3
Iout (max) (mA) 250
Iq (typ) (uA) 16
Vdropout @ rated current (typ) (mV) 120 @ 0.25A
Bias Rail No
Cout Type Ceramic
Charge Pump No
Features Adjustable Soft-Start;Enable Input;Extra Low Noise;OCP
Package Type WL-CSP0.67x0.67-4(BSC);ZQFN1x1-4;SOT-25

Features

  • Input Voltage Range: 2.2V to 5.5V

  • Adjustable Output Voltage: 1.2V to 4.5V

  • PSRR
    ► 80dB @ 1kHz (20mA)
    ► 70dB @ 10kHz (20mA)

  • Output Current: 250mA

  • Very Low Dropout: 120mV

  • Very Low IQ (Enabled): 16μA

  • Virtually Zero IQ (Disable): < 1μA

  • Very Low IG (Enabled): 16μA

  • Start-Up Time: 250μs

  • -40°C to 125°C Operating Junction Temperature Range

  • Excellent Noise Immunity

  • Fast Response Over Load and Line Transient

  • Stable with a 1μF Input and Output Ceramic Capacitors

  • Accurate Output Voltage 2% Over Load, Line, Process, and Temperature Variations

  • Overcurrent Protection

  • Over-Temperature Protection

Application Notes

Datasheet

RT9092_DS-04.pdf

Datasheet

RT9092_DS-04.pdf

Contact us for more information