SNVS002D – JANUARY 1999 – REVISED MAY 2013
Electrical Characteristics
Limits in standard typeface are for T
J
= 25°C, and limits in
boldface
type apply over the full Operating Junction Temperature
Range. Unless otherwise specified: V+ = 5V, FC = Open, C
1
= C
2
= 47
μF.
(1)
Symbol
V+
Parameter
Supply Voltage
R
L
= 1k
Condition
Inverter, LV = Open
Inverter, LV = GND
Doubler, LV = OUT
I
Q
Supply Current
No Load
LV = Open
I
SD
V
SD
I
L
R
OUT
f
OSC
f
SW
I
OSC
P
EFF
V
OEFF
(1)
(2)
(3)
(4)
(5)
Shutdown Supply Current (LM2663)
Shutdown Pin Input Voltage (LM2663)
Output Current
Output Resistance
(3)
Min
3.5
1.5
2.5
Typ
Max
5.5
5.5
5.5
Units
V
FC = V+ (LM2662)
SD = Ground (LM2663)
FC = Open
1.3
0.3
10
2.0
200
(2)
4
0.8
mA
μA
Shutdown Mode
Normal Operation
I
L
= 200 mA
OSC = Open
OSC = Open
FC = Open
FC = V+
R
L
(500) between V
+
and OUT
I
L
= 200 mA to GND
No Load
FC = Open
FC = V+
FC = Open
FC = V+
0.3
3.5
7
55
3.5
27.5
20
150
10
75
±2
±10
90
99
96
86
99.96
7
V
mA
Ω
kHz
kHz
μA
%
%
Oscillator Frequency
(4)
Switching Frequency
(5)
OSC Input Current
Power Efficiency
Voltage Conversion Efficiency
In the test circuit, capacitors C
1
and C
2
are 47
μF,
0.2Ω maximum ESR capacitors. Capacitors with higher ESR will increase output
resistance, reduce output voltage and efficiency.
In doubling mode, when V
out
> 5V, minimum input high for shutdown equals V
out
−
3V.
Specified output resistance includes internal switch resistance and capacitor ESR.
For LM2663, the oscillator frequency is 150 kHz.
The output switches operate at one half of the oscillator frequency, f
OSC
= 2f
SW
.
Test Circuits
Figure 1. LM2662 and LM2663 Test Circuits
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