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RP122 Series
Low Noise and Low Supply Current 400mA Voltage Regulator (LDO Regulator)

Product Specifications

The RP122 is a LDO regulator that provides low output noise, high ripple rejection and fast response characteristics, achieved by low supply current. This device is suitable not only for noise-sensitive applications such as high-performance analog circuits, but also for various applications.

  • Achieves Low Noise, High PSRR and Fast Response.
  • Provides Saving Space by Adopting of 4-pin Small Package without Noise Bypass Capacitor.
  • Provides Long-Duration of Operation for Battery-powered Equipment by Low Supply Current of 9.5 µA (Typ.), despite the low-noise LDO.

FEATURES

Input Voltage Range (Max. Rating) 1.9 V to 5.25 V (6.0V)
Supply Current Typ. 9.5 µA
Standby Current Typ. 0.01 µA
Output Voltage Range 1.2 V to 4.8 V (0.1 V step)
Output Voltage Accuracy ±1.0% (VSET≥ 1.8 V), ±18 mV (VSET< 1.8 V)
Output Noise Typ. 8 μVrms (IOUT = 250 mA)
Ripple Rejection Typ. 90 dB (f = 1 kHz)
Typ. 85 dB (f = 10 kHz)
Typ. 65 dB (f = 100 kHz)
Dropout Voltage Typ. 0.17 V (IOUT = 400 mA, VSET = 2.8 V, RP122K)
Thermal Shutdown Protection Detection Temp. Typ. 165°C
Inrush Current Limit Typ. 250 mA for appr. 700 µs period after start-up
Ceramic Capacitor (CIN, COUT) 1.0 µF or more
Packages WLCSP-4-P8Under Development, DFN(PLP)1010-4

APPLICATION INFORMATION

CIN,COUT: 1.0 µF

TYPICAL CHARACTERISTICS

Ripple Rejection vs. Frequency

VSET=2.8 V, VIN=3.8 V, COUT=Ceramic 1.0 µF, Ripple=0.2 Vp-p, Ta=25°C

PIN DESCRIPTION

WLCSP-4-P8Under Development

WLCSP-4-P80.64 mm × 0.64 mm
A1 VDD
A2 VOUT
B1 CE
B2 GND

DFN(PLP)1010-4

DFN(PLP)1010-41.0 mm × 1.0 mm
1 VOUT
2 GND
3 CE
4 VDD

*) The tab is substrate level (GND).


RP122 Series for Consumer

APPLICATIONS

  • Mobile Phones and Tablets, Digital Cameras, Audio Devices, and Battery-powered Equipment
  • RF Modules
  • Clock Generator: VCO, PLL, etc.
  • Noise-sensitive Devices: ADC, DAC

PRODUCT LONGEVITY PROGRAM

RP122K operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.


SELECTION GUIDE

The set output voltage and the auto-discharge function are user-selectable.

Product Name   Package Quantity per Reel
RP122Zxx1#-TR-FUnder Development Consumter WLCSP-4-P8 5,000
RP122Kxx1#-TR ConsumterPLP DFN(PLP)1010-4 10,000
  • xx … Specify the set output voltage (VSET) within the range of 1.2 V to 4.8 V in 0.1 V steps.
    The voltage in 0.05 V step is shown as follows.
    Ex. 1.85 V: RP122K181#5
  • # … Specify whether with the auto-discharge or not.
    B: without the auto-discharge function
    D: with the auto-discharge function

DOCUMENT/CONTACT

Purchase

Technical Support

Package *1 Marking Reliability *2
WLCSP-4-P8 RP122Z RP122Z
DFN(PLP)1010-4 RP122K RP122K

*1: The package file includes package dimensions, taping specifications, taping reels dimensions, power dissipations, and land pattern (foot pattern).
*2: Reliability file includes a reliability test report and a reflow profile.

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