AAT1109A Ver la hoja de datos (PDF) - Advanced Analogic Technologies

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Fabricante

AAT1109A

ONE-CHANNEL BOOST SWITCHING REGULATOR

Advanced Analogic Technologies 

Advanced Analog Technology, Inc.

AAT1109A

Electrical Characteristics, VDD = 3.3V (Unless Otherwise Specified) (See Note 1)

Oscillator

Parameter

Test Condition

Min Typ Max Unit

Oscillation frequency

fOSC CT = 270pF, R T = 4.2kΩ 400 500 600 KHz

Frequency variation with

temperature

f dT

5

%

Frequency input stability

fdV VDD = 2.6V to 6.5V

1

%

Under-voltage Protection

Parameter

Upper threshold voltage

Lower threshold voltage

Hysteresis ( VUPH – VUPL )

VUPH

VUPL

VHYS

Test Condition

TA = 25 oC

TA = 25 oC

TA = 25 oC

Note1 : Typical values of all parameters are specified at TA =25 oC.

Short Circuit Protection Control

Parameter

Input threshold voltage

Vr1

Short-circuit detect threshold

voltage

Vr 2

Charging current

I SCP

Test Condition

Vscp=0v

Min Typ

2.12 2.47

1.96 2.28

0.3

Max Unit

2.85 V

2.63 V

V

Min Typ Max Unit

1.16 1.262 1.36 V

1.16 1.262 1.36 V

-1.0 -1.5 -2.15 µA

Soft start

Parameter

Charging current

Voltage at soft start

completion

Shun Down Control

Parameter

Shut down release voltage

Shut down enable voltage

Test Condition

Ics Vscp=0v

Vts

Test Condition

Vsdh

Vsdl

Min Typ Max Unit

-1.0 -1.5 -2.15 µA

1.16 1.262 1.36 V

Min Typ Max Unit

0.5 V

2.0

V

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–

Advanced Analog Technology, Inc. –

V 0.1

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