AAT3112_07 datasheet(4/16 Pages) ANALOGICTECH

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Electrical Characteristics1

VIN = 3.3V, VOUT = 5.0V, CIN = COUT = 10μF, C1 = C2 = 1.0μF; TA = -40°C to +85°C, unless otherwise noted.

Typical values are TA = 25°C.

Symbol

Description

Conditions

Min

Typ Max Units

AAT3112-4.5

Input Power Supply

VIN

Operation Range

2.7

4.5

Quiescent Current2

2.7

≤ VIN ≤ 4.5, IOUT = 0mA; EN1 = EN2 = VIN

μA

ISHDN

Shutdown Current

EN1 = EN2 = 0

1.0

μA

IOUT

Pulsed Output Current

VIN = 3.6V; VOUT = 4.0V; TPULSE = 50ms

590

VIN = 3.6V; VOUT = 4.0V; TPULSE = 500ms

500

VOUT

Output Voltage

2.7

≤ VIN ≤ 4.5, IOUT = 100mA

4.32

4.5

4.68

3.0

≤ VIN ≤ 4.5, IOUT = 200mA

4.32

4.5

4.68

Charge Pump Section

FCLK

Clock Frequency

750

kHz

ηCP

Charge Pump Efficiency VIN = 2.7V; IOUT = 100mA

VEN(L)

Enable Threshold Low

0.3

VEN(H)

Enable Threshold High

1.4

IEN

EN Input Leakage

-1.0

1.0

μA

AAT3112-5.0

Input Power Supply

VIN

Operation Range

2.7

5.0

Quiescent Current2

2.7

≤ VIN ≤ 5.0, IOUT = 0mA; EN1 = EN2 = VIN

μA

ISHDN

Shutdown Current

EN1 = EN2 = 0

1.0

μA

IOUT

Pulsed Output Current

VIN = 3.6V; VOUT = 4.5V; TPULSE = 50ms

600

VIN = 3.6V; VOUT = 4.5V; TPULSE = 500ms

500

VOUT

Output Voltage

2.7

≤ VIN ≤ 5.0, IOUT = 100mA

4.8

5.0

5.2

3.0

≤ VIN ≤ 5.0, IOUT = 200mA

4.8

5.0

5.2

Charge Pump Section

FCLK

Clock Frequency

750

kHz

ηCP

Charge Pump Efficiency VIN = 2.7V; IOUT = 100mA

VEN(L)

Enable Threshold Low

0.3

VEN(H)

Enable Threshold High

1.4

IEN

EN Input Leakage

-1.0

1.0

μA

AAT3112

500mA High Efficiency Charge Pump

for White LED Flash Applications

3112.2007.01.1.5

1. The AAT3112 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.

2. VOUT1 and VOUT2 are pulled high to prevent switching.

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