EN

IN

OUT

GND

1 PF

1 PF

INPUT

ENABLE

GND

OUTPUT

LP5907-Q1

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Design

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.

LP5907-Q1

SNVSA34E – SEPTEMBER 2014 – REVISED DECEMBER 2019

LP5907-Q1 Automotive 250-mA, Ultra-Low-Noise, Low-IQ LDO

1

1 Features

1

•

AEC-Q100 qualified for automotive applications:

–

Temperature grade 1: –40°C to 125°C, TA

•

Input voltage range: 2.2 V to 5.5 V

•

Output voltage range: 1.2 V to 4.5 V

•

Stable with 1-µF ceramic input and output

capacitors

•

No noise bypass capacitor required

•

Remote output capacitor placement

•

Thermal-overload and short-circuit protection

•

Output current: 250 mA

•

Low output voltage noise: < 6.5 µVRMS

•

PSRR: 82 dB at 1 kHz

•

Output voltage tolerance: ±2%

•

Virtually zero IQ (disabled): < 1 µA

•

Very low IQ (enabled): 12 µA

•

Start-up time: 80 µs

•

Low dropout: 120 mV (typical)

•

–40°C to 125°C junction temperature range for

operation

2 Applications

•

ADAS cameras and radar

•

Automotive infotainment

•

Telematics systems

•

Navigation systems

3 Description

The LP5907-Q1 is a low-noise LDO that can supply

250 mA of output current. Designed to meet the

requirements of RF and analog circuits, the LP5907-

Q1 provides low noise, high PSRR, low quiescent

current, and low line or load transient response

figures. Using new innovative design techniques, the

LP5907-Q1 offers class-leading noise performance

without a noise bypass capacitor and the ability for

remote output capacitor placement.

The device is designed to work with a 1-µF input and

a 1-µF output ceramic capacitor (no separate noise

bypass capacitor is required).

This device is available with fixed output voltages

from 1.2 V to 4.5 V in 25-mV steps. Contact Texas

Instruments Sales for specific voltage option needs.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LP5907-Q1

SOT-23 (5)

2.90 mm × 1.60 mm

X2SON (4)

1.00 mm x 1.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic