PAM2320 Datasheet, PDF (4/11 Pages) Power Analog Micoelectronics – 3A Low Noise Step-Down DC-DC Converter

PAM2320
3A Low Noise Step-Down DC-DC Converter
Electrical Characteristic
T_A =25°C , Vin=3.6V, Vo=1.8V, Cin=33uF,Co=22uF, L=2.2uH, unless otherwise noted.
PAR AM ET ER
SY M BOL
Test Conditions
MIN TYP
Input Voltage Range
Output Voltage Range
UVLO Threshold
V_IN
V_O
VUV LO
VIN Rising
Hys teresis
V_IN Falling
2.7
0.6
2.4
240
1.8
Regulated Output Voltage Accuary
VO
IO = 0 to 3A
-3
Regulated Feedback Voltage
FB Leak age Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
Current Limit
Oscillator Frequency
Drain-Source On-State Resistanc e
High Efficiency
VF B
IF B
LNR
LDR
IQ
I_{S D}
I_LIM
fO SC
RDS (ON)
η
VO=1V
V_IN = 2.5V to 5V
IO=0A to 3A
No load
V_EN = 0V
High Side
Low Side
0.591 0.6
0.2
0.5
42
4
1.2 1.5
85
60
95
Analog Soft Start Time
From enable to output
t_S
r e gul ati on
0.5
EN Threshold High
EN Threshold Low
EN Leakage Current
Over Temperature Protection
V_EH
VE L
I_{E N}
OTP
V_IN=V_EN = 0V
1.5
-1.0
150
OTP Hysteresis
OTH
30
MA X
5.5
V_IN
2.5
+3
0.609
0.2
90
1
1.8
UN IT S
V
V
V
mV
V
%
V
µA
%/V
%/A
µA
µA
A
M Hz
mΩ
mΩ
%
ms
V
0.3
V
1.0
µA
°C
°C
Power Analog Microelectronics, Inc
www.poweranalog.com
4
05/2011 Rev1.0