LM7705 datasheet(2/22 Pages) TI

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LM7705

SNVS420B – NOVEMBER 2008 – REVISED MARCH 2013

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ABSOLUTE MAXIMUM RATINGS

(1) (2)

VALUE

Supply Voltage

+5.75V

VDD - VSS

VDD+0.3V, VSS-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 ( VDD to GND)

3V to 5.25V

Supply Voltage ( VDD wrt VOUT)

3.23V to 5.48V

Temperature Range

−40°C to 125°C

Thermal Resistance (

θJA )

8-Pin VSSOP

253°C/W

3.3V Electrical Characteristics

Unless otherwise specified, all limits are ensured for TA = 25°C, VDD = 3.3V, VSS = 0V, SD = 0V, CFLY= 5 µF, CRES = 22 µF,

COUT = 22 µF. Boldface limits apply at temperature extremes

(1).

Symbol

Parameter

Conditions

Min(2)

Typical(3)

Max(2)

Units

VOUT

Output Voltage

IOUT = 0 mA

−0.242

−0.232

−0.219

−0.251

−0.209

IOUT = −20 mA

−0.242

−0.226

−0.219

−0.251

−0.209

Output Voltage Ripple

IOUT = −20 mA

mVPP

Supply Current

No Load

100

μA

150

ISD

Shutdown Supply Current

SD = VDD

ηPOWER

Current Conversion Efficiency

−5 mA ≤ IOUT ≤ −20 mA

ηPOWER

Current Conversion Efficiency

IOUT = −5 mA

tON

Turn On Time

IOUT = −5 mA

500

μs

t OFF

Turn Off Time

IOUT = −5 mA

700

μs

tOFF CP

Turn Off Time Charge Pump

IOUT = −5 mA

μs

ZOUT

Output Impedance

−1 mA ≤ IOUT ≤ −20 mA

0.23

0.8

1.3

IO_MAX

Maximum Output Current

VOUT < −200 mV

-26

fOSC

Oscillator Frequency

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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