Diodes AUR9710 - Manual (Page 5)

Data Sheet
1.5MHz, 1A, Step-down DC-DC Converter AUR9710
Nov. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
5
Electrical Characteristics
V
IN
=5V, V
FB
=0.8V, L=1.2 µH, C
IN
=47 µF, C
OUT
=47 µF, T
A
=25°C, unless otherwise specified.
Parameter Symbol Conditions Min Typ Max Unit
Input Voltage Range V
IN
2.5 5.5 V
Shutdown Current I
OFF
V
EN
=0V 0.1 1 µA
Regulated 1 Feedback
Voltage
V
FB
For Adjustable Output Voltage 0.780 0.8 0.820 V
Regulated Output
Voltage Accuracy
∆V
OUT
/V
OUT
V
IN
=2.5V to 5.5V, I
OUT
=0 to 1A -3 3 %
Peak Inductor
Current
I
PK
V
FB
=0.7V 1.5 A
Oscillator Frequency f
OSC
1.2 1.5 1.8 MHz
PMOSFET R
ON
R
ON(P)
I
OUT
=200mA 0.28 Ω
NMOSFET R
ON
R
ON(N)
I
OUT
=200mA 0.25 Ω
SW Leakage Current I
SW
V
EN
=0V, V
SW
=0V or 5V 0.01 0.1 µA
Feedback Current I
FB
30 nA
EN Leakage Current I
EN
0.01 0.1 µA
EN High-level Input
Voltage
V
EN_H
V
IN
=2.5V to 5.5V 1.5 V
EN Low-Level Input
Voltage
V
EN_L
V
IN
=2.5V to 5.5V 0.6 V
Under Voltage Lock
Out
V
UVLO
Rising 1.8 V
Hysteresis Hysteresis 0.1 V
Thermal Shutdown T
SD
150 °C