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The RTQ2532N is a high-current (2A), low-noise (6.8μVRMS), high-accuracy (1% over line, load, and temperature), low-dropout linear regulator (LDO) capable of sourcing 2A with extremely low dropout (maximum 125mV). The device output voltage is pin-selectable (up to 3.95V) using a PCB layout without the need of external resistors, thus reducing the overall component count. Designers can achieve higher output voltage with the use of an external resistor divider. The device supports single input supply voltage as low to 1.1V that makes it easy to use.The low noise, high PSRR, and high output current capability make the RTQ2532N ideal to power noise-sensitive devices such as analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. With very high accuracy, remote sensing, and soft-start capabilities to reduce inrush current, the RTQ2532N is ideal for powering digital loads such as FPGAs, DSPs, and ASICs.The external enable control and power-good indicator function make the control sequence easier. The output noise immunity is enhanced by adding an external bypass capacitor on the NR/SS pin. The device is fully specified over the temperature range of TJ = -40°C to 125°C and is offered in a VQFN-20L 3.5x3.5 package.

Applications

  • Portable Electronic Devices
  • Wireless Infrastructures: SerDes, FPGA, DSP
  • RF, IF Components: VCO, ADC, DAC, LVDS
Key Spec.
RTQ2532N
Status Active
Vin (min) (V) 1.1
Vin (max) (V) 6.5
Vout (min) (V) 0.8
Vout (max) (V) 5.5
Output Adj. Method Fixed;Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 2000
Iq (typ) (uA) 3700
Vdropout @ rated current (typ) (mV) 125 @ 2A
Cout Type Ceramic
Charge Pump Yes
Features Adjustable Soft-Start;Enable Input;Extra Low Noise;High PSRR;Low Dropout;OCP;Power Good;SCP
Package Type VQFN3.5x3.5-20
Features
  • Input Voltage Range: 1.1V to 6.5V
  • Two Output Voltage Modes
    - 0.8 V to 5.5V (Set by a Resistive Divider)
    - 0.8 V to 3.95V (Set via PCB Layout, No External Resistor Required)
  • Accurate Output Voltage Accuracy (1%) Over Line, Load, and Temperature
  • High PSRR: 40dB at 500kHz
  • Noise Immunity
    - 6.8μVRMS at 0.8V Output
    - 10μVRMS at 3.3V Output
  • Dropout Voltage: 125mV at 2A
  • Enable Control
  • Programmable Soft-Start Output
  • Stable with a 22μF or Larger Ceramic Output Capacitor
  • Support Power-Good Indicator Function
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RTQ2532NGQV(2)VQFN3.5x3.5-201,500 Request Digikey 1,420 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RTQ2532NGQV(2) Digikey 5 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
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