AAT1109A Datasheet, PDF (3/10 Pages) Advanced Analogic Technologies – ONE-CHANNEL BOOST SWITCHING REGULATOR

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
f_OSC C_T = 270pF, R _T = 4.2k
400 500 600 ^KHz
Frequency variation with
temperature
f dT
5
%
Frequency input stability
f_dV V_DD = 2.6V to 6.5V
1
%
Under-voltage Protection
Parameter
Upper threshold voltage
Lower threshold voltage
Hysteresis ( V_UPH – V_UPL )
V_UPH
V_UPL
V_HYS
Test Condition
T_A = 25 ^oC
T_A = 25 ^oC
T_A = 25 ^oC
Note1 : Typical values of all parameters are specified at T_A =25 ^oC.
Short Circuit Protection Control
Parameter
Input threshold voltage
V_r1
Short-circuit detect threshold
voltage
V_{r 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
V_ts
Test Condition
V_sdh
V_sdl
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
–
–
–
Advanced Analog Technology, Inc. –
V 0.1