Datasheet

LM7705
SNVS420B –NOVEMBER 2008–REVISED MARCH 2013 www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)(2)
VALUE
Supply Voltage +5.75V
V
DD
- V
SS
SD V
DD
+0.3V, V
SS
-0.3V
For input pins only 2000V
Human Body Model
For all other pins 2000V
ESD Tolerance
(3)
Machine Model 200V
Charged Device Model 750V
Storage Temp. Range −65°C to 150°C
Junction Temperature
(4)
150°C max
Mounting Temperature Infrared or Convection (20 sec) 260°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but specific performance is not ensured. For ensured specifications and test conditions,
see the Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) Human Body Model, applicable std. MIL-STD-883, Method 3015.7. Machine model, applicable std JESD22–A115–A (ESSD MM srd of
JEDEC). Field induced Charge-Device Model, applicable std. JESD22–C101–C. (ESD FICDM std of JEDEC).
(4) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped
production material.
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 VSSOP 253°C/W
3.3V Electrical Characteristics
Unless otherwise specified, all limits are ensured 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
(1)
.
Symbol Parameter Conditions Min
(2)
Typical
(3)
Max
(2)
Units
V
OUT
Output Voltage I
OUT
= 0 mA −0.242 −0.232 −0.219
−0.251 −0.209
V
I
OUT
= −20 mA −0.242 −0.226 −0.219
−0.251 −0.209
V
R
Output Voltage Ripple I
OUT
= −20 mA 4 mV
PP
I
S
Supply Current No Load 50 78 100
μA
150
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 μs
t
OFF
Turn Off Time I
OUT
= −5 mA 700 μs
t
OFF CP
Turn Off Time Charge Pump I
OUT
= −5 mA 11 μs
Z
OUT
Output Impedance −1 mA ≤ I
OUT
≤ −20 mA 0.23 0.8
Ω
1.3
I
O_MAX
Maximum Output Current V
OUT
< −200 mV -26 mA
f
OSC
Oscillator Frequency 92 kHz
(1) Boldface limits apply to temperature range of −40°C to 125°C
(2) All limits are specified by testing or statistical analysis.
(3) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not specified on shipped
production material.
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