PAM2309 Datasheet, PDF (4/16 Pages) Power Analog Micoelectronics – 1A Step-Down DC-DC Converter

PAM2309
1A Step-Down DC-DC Converter
Electrical Characteristic
T_A=25 °C, V_IN=3.6V, V_O=1.8V, C_IN=10μF, C_O=10μF, L=4.7μH, unless otherwise noted.
PARAMETER
Input Voltage Range
Regulated Feedback Voltage
Reference Voltage Line Regulation
Regulated Output Voltage Accuary
Peak Inductor Current
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
Oscillator Frequency
Drain-Source On-State Resistance
SW Leakage Current
High Efficiency
EN Threshold High
EN Threshold Low
EN Leakage Current
Over Temperature Protection
OTP Hysteresis
SYMBOL
V_IN
V_FB
ΔV_FB
V_O
I_PK
LNR
LDR
I_Q
I_SD
f_OSC
R_{DS(O N)}
I_LSW
η
V_EH
V_EL
I_EN
OTP
OTH
Test Conditions
I_O = 100mA
V_IN=3V,V_FB = 0.5V or
V_O=90%
V_IN = 2.5V to 5V, I_O=10mA
I_O=1mA to 800mA
No load
V_EN = 0V
V_O = 100%
V_FB = 0V or V_O = 0V
P MOSFET
I_DS=100mA
N MOSFET
MIN TYP
2.5
0.490 0.5
0.3
-3
1.5
0.2
0.5
40
0.1
1.2 1.5
500
0.3
0.35
±0.01
96
1.5
±0.01
150
30
MAX
5.5
0.510
+3
0.5
1.5
70
1
1.8
0.45
0.5
1
0.3
UNITS
V
V
%/V
%
A
%/V
%
μA
μA
MHz
k Hz
Ω
Ω
μA
%
V
V
μA
°C
°C
Power Analog Microelectronics,Inc
www.poweranalog.com
4
08/2009 Rev 1.1