Diodes AUR9716 - Manual (Page 5)

Data Sheet
1.0MHz to 1.4MHz, 2A, STEP DOWN DC-DC CONVERTER AUR9716
Apr. 2012 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
5
Electrical Characteristics
V
IN
=5V, V
FB
=0.8V, f
OSC
=1.4MHz, L=1.5µH, C
IN
=10µF, C
OUT
=10µF, T
A
=25°C, unless otherwise specified.
Parameter Symbol Test Condition 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
Active Current I
ON
V
FB
=0.95V 460 µA
Regulated Feedback Voltage V
FB
For adjustable output voltage 0.784 0.8 0.816 V
Regulated Output Voltage
∆V
OUT
/V
OUT
V
IN
=2.5V to 5.5V,
I
OUT
=0A to 2A
-3 3 %
Peak Inductor Current I
PK
V
FB
=0.7V 2.2 3.2 3.7 A
R
OSC
=5.1MΩ 1.12 1.4 1.68
Oscillator Frequency f
OSC
Adjustable switching frequency 1.0 1.4
MHz
P_MOSFET R
ON
R
DSON(P)
I
SW
=0.5A 90 110 130 mΩ
N_MOSFET R
ON
R
DSON(N)
I
SW
=0.5A 90 110 130 mΩ
EN Input High-Threshold
Voltage
V
ENH
Enable Threshold 1.5 V
EN Input Low-Threshold
Voltage
V
ENL
Shutdown Threshold 0.4 V
EN Input Current I
EN
2 µA
Soft-start Time t
SS
800 µs
Maximum Duty Cycle D
MAX
100 %
V
IN
Rising 2.4
V
IN
Falling 2.3
Under Voltage Lock Out
Threshold
V
UVLO
Hysteresis 0.1
V
Thermal Shutdown T
SD
Hysteresis=30°C 150 °C
Error Amplifier Trans
Conductance
g
m
3000 µs
Current Sense Trans
Resistance
R
T
5 Ω