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LP5912Q3.3DRVRQ1

Automotive, 500-mA low-noise low-IQ low-dropout voltage regulator with reverse current protection

Manufacturer:

TI
Mfr.Part #:

LP5912Q3.3DRVRQ1
Datasheet:

LP5912Q3.3DRVRQ1 Datasheet (PDF)
Output options:

Fixed Output
Iout (max) (A):

0.5
Vin (max) (V):

6.5
Vin (min) (V):

1.6
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LP5912Q3.3DRVRQ1 General 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.

For all available packages, see the Package Option Addendum (POA) at the end of this data sheet.

Key Features

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 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

Specifications

Output options	Fixed Output	Iout (max) (A)	0.5
Vin (max) (V)	6.5	Vin (min) (V)	1.6
Vout (max) (V)	3.3	Vout (min) (V)	0.9
Fixed output options (V)	0.9, 1.1, 1.2, 1.5, 1.8, 2.8, 3, 3.3	Noise (µVrms)	12
Iq (typ) (mA)	0.03	Thermal resistance θJA (°C/W)	71
TI functional safety category	Functional Safety-Capable	Rating	Automotive
Load capacitance (min) (µF)	1	Regulated outputs (#)	1
Features	Enable, Output discharge, Power good, Reverse Current Protection, Reverse current protection, Soft start	Accuracy (%)	3
PSRR at 100 KHz (dB)	40	Dropout voltage (Vdo) (typ) (mV)	150
Operating temperature range (°C)	-40 to 125