3-Pin Synchronous Step-Up DC/DC Converter
Electrical Characteristic
C
IN
=22 μ F,C
O
=47 μ F,T
A
=25°C, unless otherwise noted.
Parameter
Output Voltage Accuracy
Input Voltage
Start-Up Voltage
Hold-on Voltage
Supply Current
(Vo pin)
V
IN
V
STA RT
V
HOLD
I
DD1
I
DD2
I
O
=1mA
I
O
=0mA,V
IN
=2V to 0V
V
O
=V
O
X 1.05
V
O
=V
O
X 0.95
Vo=2.0V
Vo=2.7V
No-Load Input Current
I
IN
I
O
=0mA，
V
IN
=1.5V
Vo=2.8V
Vo=3.0V
Vo=3.3V
Vo=3.8V
Vo=5.0V
SW Leakage Current
SW Switch-On Resistance
Oscillator Duty Cycle
Oscillator Frequency
Efficiency (Note 2)
R
ON
DC
f
OS C
η
V
SW
=5V,V
IN
=V
O
+0.5V
Isw=50mA
V
IN
=V
O
* 90%
Current Limit Appears
PAM2400
Symbol
Test Conditions
V
IN
=1.5V, I
O
=1mA
MIN
-3
TYP
MAX
+3
5.5
UNIX
%
V
V
V
μA
μA
0.9
0.4
8.5
33
19
23
25
26
29
34
45
1.0
0.6
12
μA
1.0
1.0
70
70
80
100
85
90
130
μA
Ω
%
kHz
%
Peak value
Note 1: V
O
means the nominal output voltage
Note 2: Refer to “Efficiency vs Output Current” curve
Power Analog Microelectronics
,
Inc
www.poweranalog.com
12/2007 Rev 1.0
3
PAM [ POWER ANALOG MICOELECTRONICS ]
