lt3060 Linear Technology Corporation, lt3060 Datasheet

lt3060

Manufacturer Part Number

lt3060

Description

45v Vin, Micropower, Low Noise, 100ma Low Dropout, Linear Regulator

Manufacturer

Linear Technology Corporation

Datasheet

1.LT3060.pdf (20 pages)

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Download datasheet (278Kb)

APPLICATIONS

TYPICAL APPLICATION

FEATURES

Input Voltage Range: 1.6V to 45V

Output Current: 100mA

Quiescent Current: 40μA

Dropout Voltage: 300mV

Low Noise: 30μV

Adjustable Output: V

Output Tolerance: ±2% Over Line, Load and

Temperature

Single Capacitor Soft-Starts Reference and Lowers

Output Noise

Shutdown Current: < 1μA

Reverse Battery Protection

Current Limit Foldback Protection

Thermal Limit Protection

8-Lead 2mm × 2mm × 0.75mm DFN and 8-Lead

ThinSOT

Battery-Powered Systems

Automotive Power Supplies

Industrial Power Supplies

Avionic Power Supplies

Portable Instruments

2.3V TO

45V

™

1μF

Packages

1.8V Low Noise Regulator

SHDN

RMS

GND REF/BYP

LT3060

REF

(10Hz to 100kHz)

OUT

ADJ

= 600mV

10nF

249k

124k

10nF

3060 TA01

10μF

1.8V AT 100mA

30μV

OUT

RMS

NOISE

DESCRIPTION

The LT

linear regulator that operates over a 1.6V to 45V input

supply range. The device supplies 100mA of output current

with a typical dropout voltage of 300mV. A single external

capacitor provides programmable low noise reference

performance and output soft-start functionality. The

LT3060’s quiescent current is merely 40μA and provides

fast transient response with a minimum 2.2μF output

capacitor. In shutdown, quiescent current is less than 1μA

and the reference soft-start capacitor is reset.

The LT3060 optimizes stability and transient response

with low ESR, ceramic output capacitors. The regulator

does not require the addition of ESR as is common with

other regulators. The LT3060 typically provides 0.1% line

regulation and 0.03% load regulation.

Internal protection circuitry includes reverse-battery

protection, reverse-output protection, reverse-current

protection, current limit with foldback and thermal shutdown.

The LT3060 is an adjustable voltage regulator with an output

voltage range from the 600mV reference to 44.5V. The

LT3060 is offered in the thermally enhanced 8-lead TSOT-23

and 8-lead (2mm × 2mm × 0.75mm) DFN packages.

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. ThinSOT is a Trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

Dropout, Linear Regulator

3060 is a micropower, low dropout voltage (LDO)

Low Noise, 100mA Low

45V V

350

300

250

200

150

100

= 25°C

20 30 40

Dropout Voltage

OUTPUT CURRENT (mA)

, Micropower,

60 70 80 90 100

3060 TA02

LT3060

3060f

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