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LP5912-Q1
SNVSAA8C – DECEMBER 2015 – REVISED SEPTEMBER 2016
LP5912-Q1 Automotive 500-mA Low-Noise, Low-IQ LDO
1 Features
2 Applications
•1 Qualified for Automotive Applications • AEC Q100-Qualified With the Following Results
– Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
– Device HBM Classification Level 2 – Device CDM Classification Level C6 • 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
• Automotive Infotainment • Telematics Systems • ADAS Cameras and Radar • Navigation Systems
3 Description
The LP5912-Q1 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 LP5912Q1 device provides low noise, high PSRR, low quiescent current, and low line and load transient response. The LP5912-Q1 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-Q1
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
VIN
IN
OUT
VOUT
CIN
LP5912-Q1
GND
NC
COUT
VEN EN
RPG VPG
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.
LP5912-Q1
SNVSAA8C – DECEMBER 2015 – REVISED SEPTEMBER 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Voltage Options ..................................................... 3 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4 7.2 ESD Ratings.............................................................. 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information .................................................. 4 7.5 Electrical Characteristics........................................... 5 7.6 Output and Input Capacitors ..................................... 7 7.7 Typical Characteristics .............................................. 8 8 Detailed Description ............................................ 17 8.1 Overview ................................................................. 17 8.2 Functional Block Diagram ....................................... 17
8.3 Feature Description................................................. 17 8.4 Device Functional Modes........................................ 19 9 Applications and Implementation ...................... 20 9.1 Application Information............................................ 20 9.2 Typical Application .................................................. 20 10 Power Supply Recommendations ..................... 23 11 Layout................................................................... 24 11.1 Layout Guidelines ................................................. 24 11.2 Layout Example .................................................... 24 12 Device and Documentation Support ................. 25 12.1 Related Documentation ....................................... 25 12.2 Receiving Notification of Documentation Updates 25 12.3 Community Resources.......................................... 25 12.4 Trademarks ........................................................... 25 12.5 Electrostatic .