PAM2307 Datasheet, PDF (4/13 Pages) Power Analog Micoelectronics – 3A Low Noise Step-Down DC-DC Converter

PAM2307
3A Low Noise Step-Down DC-DC Converter
Electrical Characteristic
T_A =25°C , Vin=3.6V, Vo=1.8V, Cin=22uF,Co=22uF, L=2.2uH, unless otherwise noted.
PAR AMETER
Input Voltage Range
Output Voltage Range
UVLO Threshold
Regulated Output Voltage Accuary
Regulated Feedback Voltage
FB Leakage Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
Current Limit
Os cillator Frequenc y
Drain-Source On-State Resistance
High Efficiency
Start up Time
EN Threshold High
EN Threshold Low
EN Leakage Current
Ov er Temperature Protection
OTP Hysteresis
SYMB OL
VIN
V_O
VUVLO
VO
V_FB
IFB
LNR
LDR
IQ
ISD
I_LIM
fO SC
RDS(ON)
η
t_S
V_EH
VE L
IEN
OTP
OTH
Test Conditions
MIN
2.5
0.6
V_IN Rising
Hys teresis
VIN Falling
1.8
IO = 0 to 3A,VIN=2.5 to 5.5V -2
0.588
VO=1V
VIN = 2.5V to 5V
I_O=0A to 3A
No load
VEN = 0V
1.2
High Side
Low Side
From enable to output
r eg ul ati on
1.5
VIN=VEN = 0V
-1.0
T YP
2.4
240
0.6
0.2
0.5
42
3.5
1.5
0.140
0.09
150
30
MAX
5.5
V_IN
2.5
+2
0.612
0.2
90
1
1.8
95
3
0.3
1.0
UN ITS
V
V
V
mV
V
%
V
µA
%/V
%/A
µA
µA
A
MHz
Ω
Ω
%
ms
V
V
µA
°C
°C
Power Analog Microelectronics, Inc
www.poweranalog.com
4
03/2011 Rev2.1