Datasheet > LTBKG

LTBKG

更新时间： 2024-11-24 03:52:11

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	208K
描述
100mA, Low Voltage, Very Low Dropout Linear Regulator

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LTBKG 数据手册

LT3020/LT3020-1.2/

LT3020-1.5/LT3020-1.8

100mA, Low Voltage,

Very Low Dropout

Linear Regulator

DESCRIPTIO

FEATURES

The LT^®3020 is a very low dropout voltage (VLDO^TM) linear

regulator that operates from input supplies down to 0.9V.

This device supplies 100mA of output current with a

typical dropout voltage of 150mV. The LT3020 is ideal for

low input voltage to low output voltage applications,

providing comparable electrical efficiency to that of a

switching regulator.

■

V_INRange: 0.9V to 10V

■

Minimum Input Voltage: 0.9V

■

Dropout Voltage: 150mV Typical

Output Current: 100mA

■

Adjustable Output (V_REF= V_OUT(MIN)= 200mV)

■

Fixed Output Voltages: 1.2V, 1.5V, 1.8V

■

Stable with Low ESR, Ceramic Output Capacitors

(2.2µF Minimum)

The LT3020 regulator optimizes stability and transient

response with low ESR, ceramic output capacitors as

small as 2.2µF. Other LT3020 features include 0% line

regulation and 0.2% typical load regulation. In shutdown,

quiescent current typically drops to 3µA.

■

0.2% Load Regulation from 0mA to 100mA

■

Quiescent Current: 120µA (Typ)

■

3µA Typical Quiescent Current in Shutdown

■

Current Limit Protection

■

Reverse-Battery Protection

■

Internal protection circuitry includes reverse-battery pro-

tection, current limiting, thermal limiting with hysteresis,

andreverse-currentprotection. TheLT3020isavailableas

an adjustable output device with an output range down to

the 200mV reference. Three fixed output voltages, 1.2V,

1.5V and 1.8V, are also available.

No Reverse Current

■

Thermal Limiting with Hysteresis

■

8-Lead DFN (3mm × 3mm) and MSOP Packages

APPLICATIO S

■

Low Current Regulators

■

Battery-Powered Systems

The LT3020 regulator is available in the low profile

(0.75mm) 8-lead (3mm × 3mm) DFN package with ex-

posed pad and the 8-lead MSOP package.

, LTC and LT are registered trademarks of Linear Technology Corporation.

VLDO is a trademark of Linear Technology Corporation.

■

Cellular Phones

■

Pagers

■

Wireless Modems

TYPICAL APPLICATIO

Minimum Input Voltage

1.8V to 1.5V, 100mA VLDO Regulator

1.1

= 100mA

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

OUT

LT3020-1.5

SHDN

GND

1.5V

1.8V

100mA

2.2µF

3020 TA01

–50 –25

75 100 125

TEMPERATURE (°C)

3020 TA02

sn3020 3020fas

12 3 4 5 6 7...16

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