PAM2421 Datasheet, PDF (4/9 Pages) Power Analog Micoelectronics – 3A,4.5A,5.5A PWM Step-Up DC/DC Converter

PAM2421,PAM2422,PAM2423
3A,4.5A,5.5A PWM Step-Up DC/DC Converter
Electrical Characteristic
At T_A=25 C ,V = _IN V = _EN 5V,,unless otherwise specified.
PAR AMETER
Input Voltage
Under Voltage Lockout
Thres hold
Under Voltage Lockout
H yste re sis
Quiescent Supply Current
Supply Current in S hutdown
Switching Frequency
Maximum Dut y Cyc le
FB Feedback Voltage
FB Input Current
FB Volt age Line Regulation
Switch Current Limit
Switch On Res istance
Switch Leak age Current
Soft Start Pin Bias Current
Logic High Threshold
Logic Low Threshold
EN Pull Down Resistor
Thermal Shutdown
T e mp era ture
Thermal Shutdown
H yste re sis
COND ITIONS
VIN Rising
VFB = 1.4V, Not Switching
VFB = 1.0V, Switc hing
EN = Ground
VFB from 2.7V to 5.5V
PAM2421
PAM2422
PAM2423
VIN =3 .2V
Duty Cycle = 70%
PAM2421
PAM2422
PAM2423
VSW = 10V, EN = Ground
VSS = 1.2V
EN Pin
EN Pin
MIN TYP MAX UNIT
2.7
5.5
V
2.5
V
200
mV
0.25 0.35
mA
3
5
0.1
1
uA
520
kH z
85
%
1.237 1.262 1.287 V
0
80
nA
0.05 0.15 %/V
3
4.5
A
5.5
130
100
mΩ
70
15
uA
2
4.5
7
uA
1.4
V
0.4
V
1
MΩ
160
℃
40
℃
Power Analog Microelectronics, Inc
www.poweranalog.com
4
02/2012 Rev1.1