Low-noise LDO. LP5912-Q1 Datasheet

LP5912-Q1 LDO. Datasheet pdf. Equivalent

Part LP5912-Q1
Description Low-noise LDO
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LP5912-Q1
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Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
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 LP5912-
Q1 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
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 Discharge Caution ............................ 25
12.6 Glossary ................................................................ 25
13 Mechanical, Packaging, and Orderable
Information ........................................................... 25
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (June 2016) to Revision C
Page
• Changed wording of data sheet title and list of Applications ................................................................................................. 1
• Changed wording of first sentence of Description.................................................................................................................. 1
Changes from Revision A (April 2016) to Revision B
Page
• Changed "linear regulator" to "LDO" on page 1 .................................................................................................................... 1
Changes from Original (December 2015) to Revision A
Page
• Changed device from preview to production data ................................................................................................................. 1
• Changed Block Diagram....................................................................................................................................................... 17
2
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