500mA Low-Noise Low-IQ LDO - LP5912

LP5912 (ACTIVE)

500mA Low-Noise Low-IQ LDO

 

Recommended alternative parts

  • TPS7A90  -  TPS7A90 is 500mA, low noise (4.7uVrms) LDO in a small package (2.5 mm x 2.5mm)

Description

The LP5912 is low-noise LDO that can supply up to 500 mA of output current. Designed to meet the requirements of RF and analog circuits, the LP5912 device provides low noise, high PSRR, low quiescent current, and low line and load transient response. The LP5912 offers class-leading noise performance without a noise bypass capacitor and with the ability for remote output capacitance placement.

The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor (no separate noise bypass capacitor required).

This device is available with fixed output voltages from 0.8 V to 5.5 V in 25-mV steps. Contact Texas Instruments Sales for specific voltage option needs.

Features

  • Input Voltage Range: 1.6 V to 6.5 V
  • Output Voltage Range: 0.8 V to 5.5 V
  • Output Current up to 500 mA
  • Low Output-Voltage Noise: 12 µVRMS Typical
  • PSRR at 1 kHz: 75 dB Typical
  • Output Voltage Tolerance (VOUT ≥ 3.3 V): ±2%
  • Low IQ (Enabled, No Load): 30 µA Typical
  • Low Dropout (VOUT ≥ 3.3 V): 95 mV Typical at 500-mA Load
  • Stable With 1-µF Ceramic Input and Output Capacitors
  • Thermal-Overload and Short-Circuit Protection
  • Reverse Current Protection
  • No Noise Bypass Capacitor Required
  • Output Automatic Discharge for Fast Turnoff
  • Power-Good Output With 140-µs Typical Delay
  • Internal Soft-Start to Limit the In-rush Current
  • –40°C to +125°C Operating Junction Temperature Range

View more

Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
LP5912 LP5907 LP5910
0.5    0.25    0.3   
Fixed Output    Fixed Output    Fixed Output   
1.6    2.2    1.3   
6.5    5.5    3.3   
0.9
1.1
1.2
1.5
1.8
2.8
3
3.3   
1.2
1.5
1.8
1.9
2.2
2.5
2.7
2.75
2.8
2.85
2.9
3
3.1
3.2
3.3
3.7
4
4.5   
0.9
1
1.1
1.2
1.8   
0.9    1.2    0.9   
3.3    4.5    1.8   
0.03    0.012    0.012   
150    50    120   
3    2    3   
12    6.5    12   
40    60    40   
Ceramic    Ceramic    Ceramic   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
6WSON    4DSBGA
4X2SON
5SOT-23   
4DSBGA
6WSON   

Other qualified versions of LP5912

Version Part Number Definition
Automotive LP5912-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects

WEBENCH® Designer LP5912

  Min   Max Range
Vin  V 1.6 to 6.5V
Product Option
Vout  V
Iout  A ≤ 0.5A
Ambient Temp  °C -40.0 to 125.0°C