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LP5912 Datasheet

Low-noise LDO

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LP5912
SNVSA77D – DECEMBER 2015 – REVISED NOVEMBER 2016
LP5912 500-mA Low-Noise, Low-IQ 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 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
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
VIN
IN
OUT
VOUT
CIN
LP5912
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.




etcTI

LP5912 Datasheet Preview

LP5912 Datasheet

Low-noise LDO

No Preview Available !

LP5912
SNVSA77D – DECEMBER 2015 – REVISED NOVEMBER 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 C (September 2016) to Revision D
Page
• Added package drawing ........................................................................................................................................................ 1
Changes from Revision B (June 2016) to Revision C
Page
• Changed wording of data sheet title ...................................................................................................................................... 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
2
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Product Folder Links: LP5912
Copyright © 2015–2016, Texas Instruments Incorporated


Part Number LP5912
Description Low-noise LDO
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