AAT1110 Datasheet, PDF (3/17 Pages) Advanced Analog Technology, Inc. – ONE-CHANNEL STEP-DOWN PWM CONTROLLER

Advanced Analog Technology, Inc.
AAT1110
Electrical Characteristics, V_DD = 3.3V (Unless Otherwise Specified) (See Note 1)
Oscillator
Parameter
Test Condition
Min Typ Max Unit
Oscillation Frequency
f _OSC
C_OSC = 270pF,
R _OSC = 4.2 kΩ
400 500 600 kHz
Frequency Variation With
Temperature
f _∆T
5
%
Frequency Input Stability
f_∆V V_DD = 2.6V to 6.5V
1
%
Under-Voltage Protection
Parameter
Test Condition
Upper Threshold Voltage
Lower Threshold Voltage
Hysteresis ( V_UPH – V_UPL )
V_UPH
V_UPL
V_HYS
T_C = 25 ^oC
T_C = 25 ^oC
T_C = 25 ^oC
Note1: Typical values of all parameters are specified at T_C =25 ^oC
Min Typ
2.12 2.47
1.96 2.28
0.19
Max Unit
2.85 V
2.63 V
V
Short Circuit Protection Control
Parameter
Input Threshold Voltage
V_r1
Short-Circuit Detect
Threshold Voltage
V_tscd
Charging Current
I _SCP
Test Condition
V_SCP =0V
Min Typ Max Unit
1.160 1.262 1.360 _V
1.160 1.262 1.360 V
− 2.15 −1.50 −1.00 ^µA
Soft-Start
Parameter
Charging Current
Voltage at Soft-Start
Completion
Shutdown Control
Parameter
Shutdown Enable Voltage
Shutdown Release Voltage
Test Condition
I_CS V_SCP =0V
V_ts
Min Typ Max Unit
− 2.15 −1.50 −1.00 ^µA
1.160 1.262 1.360 _V
Test Condition
Min Typ Max Unit
V_SE
0.5 _V
V_SR
2.0
V
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– Advanced Analog Technology, Inc. –
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