PAM2305 Datasheet, PDF (4/17 Pages) Power Analog Micoelectronics – 1A Step-Down DC-DC Converters

PAM2305
1A Step-Down DC-DC Converters
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
SYMBOL
V_IN
V_FB
ΔV_FB
V_O
Peak Inductor Current
I_PK
Output Voltage Line Regulation
Output Voltage Load Regulation
Quiescent Current
Shutdown Current
LNR
LDR
I_Q
I_SD
Oscillator Frequency
f_OSC
Drain-Source On-State Resistance
SW Leakage Current
High Efficiency
EN Threshold High
EN Threshold Low
EN Leakage Current
Over Temperature Protection
OTP Hysteresis
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
0.588 0.6
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
0.612
+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
09/2008 Rev 1.2