LP5912-Q1

Name: LP5912-Q1
Brand: TI
SKU: LP5912-Q1
Price: .458 USD

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

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Data sheet

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LP5912-Q1 Automotive 500-mA Low-Noise, Low-IQ LDO datasheet (Rev. C)

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Online data sheet

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

LP5912-Q1

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Data sheet

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Product details

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 (uVrms)

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, Soft Start

Accuracy (%)

3

PSRR @ 100 KHz (dB)

40

Dropout voltage (Vdo) (Typ) (mV)

150

Operating temperature range (C)

-40 to 125

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 (uVrms)

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, Soft Start

Accuracy (%)

3

PSRR @ 100 KHz (dB)

40

Dropout voltage (Vdo) (Typ) (mV)

150

Operating temperature range (C)

-40 to 125

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WSON (DRV)

6

4 mm² 2 x 2

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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

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

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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.

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.

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Technical documentation

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	Type	Title	Date
*	Data sheet	LP5912-Q1 Automotive 500-mA Low-Noise, Low-IQ LDO datasheet (Rev. C)	02 Sep 2016
	Technical article	3 quiescent-current (Iq) specifications you need to understand	12 Nov 2021
	Functional safety information	LP5912-Q1 Functional Safety FIT Rate and Failure Mode Distribution	16 Dec 2019
	Technical article	Power over coax: A design guide for automotive applications	26 Aug 2016
	User guide	LP5912DRV EVM User's Guide	15 Dec 2015

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LP5912DRV18EVM — LP5912 1.8-V 500-mA low-noise low-IQ LDO linear regulator evaluation module

The LP5912EVM facilitates evaluation of the LP5912-1.8DRVR Low-Noise, 500mA Linear Regulator with user accessible test points for Enable (EN) and Power Good (PG). The EVM is a standalone evaluation module containing one positive voltage low-dropout regulator IC for fixed voltage regulation (1.8V). (...)

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Evaluation board

LP5912DRV33EVM — LP5912 3.3-V 500-mA low-noise low-IQ LDO linear regulator evaluation module

The LP5912EVM facilitates evaluation of the LP5912-3.3DRVR Low-Noise, 500mA Linear Regulator with user accessible test points for Enable (EN) and Power Good (PG). The EVM is a standalone evaluation module containing one positive voltage low-dropout regulator IC for fixed voltage regulation (3.3V). (...)

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Simulation model

LP5912 2P8_Unencrypted PSpice Transient Model

SNVMAI2.ZIP (3 KB) - PSpice Model

LP5912-Q1

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

LP5912-Q1

Product details

Technical documentation

Design & development

LP5912DRV18EVM — LP5912 1.8-V 500-mA low-noise low-IQ LDO linear regulator evaluation module

LP5912DRV33EVM — LP5912 3.3-V 500-mA low-noise low-IQ LDO linear regulator evaluation module

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