AAT3120 datasheet(4/14 Pages) ANALOGICTECH

Part #	AAT3120

Description	3-Channel Charge Pump For White LED Applications

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Manufacturer	ANALOGICTECH [Advanced Analogic Technologies]

Direct Link	http://www.analogictech.com

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4 / 14 page

Electrical Characteristics

1

C

IN = COUT = C1 = C2 = 1.0µF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C,

V

IN = 3.5V.

Symbol

Description

Conditions

Min

Typ

Max Units

Input Power Supply

V

IN

Operation Range

2.7

5.5

V

I

CC

Operating Current

3.0V

≤ V

IN ≤ 5.5V, Active,

1.8

3.0

mA

No Load Current

I

SHDN

Shutdown Current

EN = 0

1.0

µA

I

DX

Output Current

3.0

≤ V

IN ≤ 5.5

18

20

22

mA

I

(D-Match)

Current Matching Between

VD1:D3 = 3.6, V

IN = 3.5V

0.5

%

Any Two Outputs

Charge Pump Section

T

SS

Soft-Start Time

200

µs

F

CLK

Clock Frequency

1000

kHz

EN/SET

V

EN(L)

Enable Threshold Low

2.7V

≤ V

IN ≤ 5.5V

0.4

V

EN(H)

Enable Threshold High

2.7V

≤ V

IN ≤ 5.5V

1.4

V

T

EN/SET LO

EN/SET Low Time

0.3

75

µs

T

EN/SET HI

Minimum EN/SET High Time

50

ns

T

OFF

EN/SET Off Timeout

500

µs

Input Current

EN/SET Input Leakage

-1

1

µA

AAT3120

3-Channel Charge Pump

For White LED Applications

4

3120.2005.11.1.1

1. The AAT3120 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured

by design, characterization, and correlation with statistical process controls.

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