PAM2305
1A Step-Down DC-DC Converters
Electrical Characteristic
TA=25°C, VIN=3.6V, VO=1.8V, CIN=10μF, CO=10μF,L=4.7μH, unless otherwise noted.
PARAMETER
Input Voltage Range
SYMBOL
VIN
Test Conditions
MIN
2.5
TYP
MAX
5.5
UNITS
V
Regulated Feedback Voltage
VFB
0.588
0.6
0.3
0.612
V
Reference Voltage Line Regulation
Regulated Output Voltage Accuary
ΔVFB
VO
%/V
%
IO = 100mA
-3
+3
VIN=3V,VFB = 0.5V or
VO=90%
Peak Inductor Current
IPK
1.5
A
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
LNR
LDR
IQ
VIN = 2.5V to 5V, IO=10mA
IO=1mA to 800mA
No load
0.2
0.5
40
0.5
1.5
70
1
%/V
%
μA
μA
MHz
kHz
Ω
Shutdown Current
ISD
VEN = 0V
0.1
1.5
500
0.3
0.35
0.01
96
VO = 100%
1.2
1.8
Oscillator Frequency
fOSC
VFB = 0V or VO = 0V
P MOSFET
IDS=100mA
N MOSFET
0.45
0.5
1
Drain-Source On-State Resistance
RDS(ON)
Ω
SW Leakage Current
High Efficiency
ILSW
η
μA
%
EN Threshold High
EN Threshold Low
EN Leakage Current
Over Temperature Protection
OTP Hysteresis
VEH
VEL
IEN
1.5
V
0.3
V
0.01
150
30
μA
°C
°C
OTP
OTH
Power Analog Microelectronics,Inc
www.poweranalog.com
09/2008 Rev 1.2
4
PAM [ POWER ANALOG MICOELECTRONICS ]
