LM2767
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SNVS069C –FEBRUARY 2000–REVISED MAY 2013
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: V+ = 5V, C1 = C2 = 10 μF.(1)
Symbol
Parameter
Supply Voltage
Condition
Min
1.8
Typ
Max
5.5
90
Units
V
V+
IQ
IL
Supply Current
Output Current
Output Resistance
No Load
40
µA
1.8V ≤ V+ ≤ 5.5V
IL = 15 mA
See(3)
15
mA
Ω
(2)
ROUT
fOSC
fSW
20
22
40
50
25
Oscillator Frequency
Switching Frequency
8
4
kHz
kHz
See(3)
11
RL (5.0k) between GND and OUT
IL = 15 mA to GND
No Load
98
PEFF
Power Efficiency
%
%
96
VOEFF
Voltage Conversion Efficiency
99.96
(1) In the test circuit, capacitors C1 and C2 are 10 µF, 0.3Ω maximum ESR capacitors. Capacitors with higher ESR will increase output
resistance, reduce output voltage and efficiency.
(2) Specified output resistance includes internal switch resistance and capacitor ESR. See the details in the application information for
positive voltage doubler.
(3) The output switches operate at one half of the oscillator frequency, fOSC = 2fSW
.
Test Circuit
Figure 4. LM2767 Test Circuit
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