AUR9703 Datasheet, PDF (5/20 Pages) BCD Semiconductor Manufacturing Limited – 1.5MHz, 800mA, STEP DOWN DC-DC CONVERTER

Data Sheet
1.5MHz, 800mA, STEP DOWN DC-DC CONVERTER AUR9703
Electrical Characteristics
V_IN=5V, V_OUT=3.3V, V_FB=0.6V, L=2.2µH, C_IN=4.7µF, C_OUT=10µF, T_A=25°C, I_MAX=800mA. Unless
otherwise specified.
Parameter
Input Voltage Range
Shutdown Current
Regulated1Feedback
Voltage
Regulated Output
Voltage Accuracy
Peak
Inductor
Current
Oscillator Frequency
PMOSFET R_ON
NMOSFET R_ON
Quiescent Current
LX Leakage Current
Feedback Current
Soft Start Time
EN Leakage Current
EN High-level Input
Voltage
EN Low-Level Input
Voltage
Under Voltage Lock
Out
Hysteresis
Thermal Shutdown
Symbol
V_IN
I_OFF
V_FB
∆V_OUT/V_OUT
I_PK
f_OSC
R_ON(P)
R_ON(N)
I_Q
I_LX
I_FB
t_SS
I_EN
V_{EN_H}
V_{EN_L}
V_UVLO
T_SD
Conditions
Min Typ Max Unit
V_EN=0
2.5
5.5 V
0.1 1 µA
For Adjustable Output Voltage 0.585 0.6 0.615 V
V_IN=2.5V to 5.5V,
I_OUT=0 to 800mA
-3
3%
V_IN=5V, V_FB=0.5V
1.2
A
V_IN=5V
1.2 1.5 1.8 MHz
V_IN=5V, I_OUT=200mA
0.25
Ω
V_IN=5V, I_OUT=200mA
0.27
Ω
I_OUT=0A, V_FB= 0.7V
100
µA
V_EN=0V, V_LX=0V or 5V,
V_IN=5V
0.1 1 µA
30 nA
200
µs
0.01 0.1 µA
V_IN=2.5V to 5.5V
1.5
V
V_IN=2.5V to 5.5V
0.6 V
1.8
V
0.1
V
160
°C
Nov. 2011 Rev. 1 .0
BCD Semiconductor Manufacturing Limited
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