LM2776DBVT datasheet(5/23 Pages) TI1

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Output Current (A)

0.0001

0.001

0.01

0.1

0.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

D001

TA = -40°C

TA = 25°C

TA = 85°C

Input Voltage (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

D002

TA = -40°C

TA = 25°C

TA = 85°C

LM2776

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SNVSA56A – MAY 2015 – REVISED FEBRUARY 2016

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6.5 Electrical Characteristics

Typical limits tested at TA = 25°C. Minimum and maximum limits apply over the full operating ambient temperature range

(

−40°C ≤ TA ≤ +85°C). VIN = 3.6 V, CIN = COUT = 2.2 µF, C1 = 1 µF

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Supply current

EN = 1. No load

100

200

µA

ISD

Shutdown supply current

EN = 0

0.1

µA

VEN

Enable pin input threshold voltage

Normal operation

1.2

Shutdown mode

0.4

ROUT

Output resistance

2.5

ICL

Output current limit

400

UVLO

Undervoltage lockout

VIN Falling

2.4

VIN Rising

2.6

6.6 Switching Characteristics

over operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ƒSW

Switching frequency

1.7

2.3

MHz

6.7 Typical Characteristics

(Typical Application circuit, VIN = 3.6 V unless otherwise specified.)

VIN = 5.5 V

Figure 1. Output Ripple vs Output Current

IOUT = 100 mA

Figure 2. Output Ripple vs Input Voltage

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