National Semiconductor LM7705, Manual

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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
V
DD
- V
SS
+5.75V
SD V
DD
+0.3V, V
SS
-0.3V
ESD Tolerance (Note 2)
Human Body Model
For input pins only 2000V
For all other pins 2000V
Machine Model 200V
Charge Device Model 750V
Storage Temp. Range −65°C to 150°C
Junction Temperature (Note 7) 150°C max
Mounting Temperature
Infrared or Convection (20 sec) 260°C
Operating Ratings
Supply Voltage ( V
DD
to GND)
3V to 5.25V
Supply Voltage ( V
DD
wrt V
OUT
)
3.23V to 5.48V
Temperature Range −40°C to 125°C
Thermal Resistance (
θ
JA
)
8-Pin MSOP 253°C/W
3.3V Electrical Characteristics
Unless otherwise specified, all limits are guaranteed for T
A
= 25°C, V
DD
= 3.3V, V
SS
= 0V, SD = 0V, C
FLY
= 5 µF, C
RES
= 22 µF,
C
OUT
= 22 µF. Boldface limits apply at temperature extremes (Note 5).
Symbol Parameter Conditions Min
(Note 6)
Typical
(Note 7)
Max
(Note 6)
Units
V
OUT
Output Voltage I
OUT
= 0 mA −0.242
−0.251 −0.232 −0.219
−0.209
V
I
OUT
= −20 mA −0.242
−0.251 −0.226 −0.219
−0.209
V
R
Output Voltage Ripple I
OUT
= −20 mA 4 mV
PP
I
S
Supply Current No Load 50 78 100
150
μ
A
I
SD
Shutdown Supply Current SD = V
DD
20
nA
η
POWER
Current Conversion Efficiency
−5 mA
≤
I
OUT
≤
−20 mA
98
%
η
POWER
Current Conversion Efficiency I
OUT
= −5 mA 98
%
t
ON
Turn On Time I
OUT
= −5 mA 500
μ
s
t
OFF
Turn Off Time I
OUT
= −5 mA 700
μ
s
t
OFF CP
Turn Off Time Charge Pump I
OUT
= −5 mA 11
μ
s
Z
OUT
Output Impedance
−1 mA
≤
I
OUT
≤
−20 mA
0.23 0.8
1.3
Ω
I
O_MAX
Maximum Output Current V
OUT
< −200 mV -26 mA
f
OSC
Oscillator Frequency 92 kHz
V
IL
Shutdown Input Low 1.6
1.25
V
V
IH
Shutdown Input High 1.85
2.15
V
I
C
Shutdown Pin Input Current SD = V
DD
50 pA
Load Regulation
0 mA
≤
I
OUT
≤
−20 mA
0.12 0.6
0.85
%/mA
Line Regulation
3V
≤
V
DD
≤
5.25V (No Load)
-0.2 0.29 0.7
1.1
%/V
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LM7705