ap3409 BCD Semiconductor Manufacturing Limited, ap3409 Datasheet - Page 5

• Manufacturer Part Number: ap3409
• Description: 3a, 4mhz High Efficiency Synchronous Buck Converter
• Manufacturer: BCD Semiconductor Manufacturing Limited

Recommended Operating Conditions
Electrical Characteristics
V
Jul. 2010 Rev. 1. 0
3A, 4MHz High Efficiency Synchronous Buck Converter
Parameter
Input Voltage
Maximum Output Current
Operating Junction Temperature
Parameters
INPUT SECTION
Input Voltage Range
Supply Current
Shutdown Supply Current
Under Voltage Threshold
Lockout
Under Voltage Hysteresis
Lockout
FEEDBACK SECTION
Feedback Voltage
FB Pin Bias Current
Current Sense Transresistance
Switching Leakage Current
Error Gain Amplifier Voltage
Error Amplifier Trans-conductance
IN
=V
DD
=V
PVDD
=3.3V, T
A
=25℃, unless otherwise specified.
Symbol
V
V
I
V
HUVLO
SHDN
V
I
G
UVLO
R
G
I
FB
DD
Q
FB
T
V
S
I
Symbol
OUT (MAX)
V
T
V
No Switching
Shutdown,
V
V
V
IN
J
FB
IN
DD
SHDN/RT
5
Conditions
=5.5V
=0.75V,
Rising
=V
IN
=5.5V
Min
BCD Semiconductor Manufacturing Limited
2.6
-40
3
Preliminary Datasheet
0.784
Min
2.6
Max
Typ
460
300
800
800
125
2.2
0.8
0.1
0.2
5.5
0.816
Max
5.5
0.4
1
1
AP3409
Unit
ºC
V
A
µA /V
Unit
mV
µA
µA
µA
µA
Ω
V
V
V