LP5912_17 Datasheet, PDF (1/33 Pages) Texas Instruments – 500-mA Low-Noise, Low-IQ LDO

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LP5912
SNVSA77D – DECEMBER 2015 – REVISED NOVEMBER 2016
LP5912 500-mA Low-Noise, Low-I_Q LDO
1 Features
•1 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 µV_RMS Typical
• PSRR at 1 kHz: 75 dB Typical
• Output Voltage Tolerance (V_OUT ≥ 3.3 V): ±2%
• Low I_Q (Enabled, No Load): 30 µA Typical
• Low Dropout (V_OUT ≥ 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
2 Applications
• Camera Modules
• Sensors
• HiFi Audio Radio Transceivers
• PLL/Synthesizer, Clocking
• Medium-Current, Noise-Sensitive Applications
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3 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LP5912
WSON (6)
2.00 mm × 2.00 mm
(1) For all available packages, see the Package Option
Addendum (POA) at the end of this data sheet.
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Simplified Schematic
V_IN
IN
OUT
V_OUT
C_IN
LP5912
GND
NC
C_OUT
V_EN
EN
R_PG
V_PG
PG
Copyright © 2016, Texas Instruments Incorporated
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.