LM22680, LM22680-Q1

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SNVS595L – SEPTEMBER 2008 – REVISED NOVEMBER 2014

6.6 Electrical Characteristics

PARAMETER

CONDITIONS

UNIT

1.266

1.285

1.304

Feedback Voltage

V

1.259

1.311

125°C

3.4

Quiescent Current

mA

6

Standby Quiescent Current

EN Pin = 0 V

25

40

µA

2.8

Current Limit

A

–40°C

2.32

3.4

0.2

2

µA

Output Leakage Current

0.1

3

µA

0.2

0.24

Switch On-Resistance

Ω

–40°C

0.32

500

Oscillator Frequency

kHz

–40°C

400

600

200

Minimum Off-time

ns

–40°C

100

300

Minimum On-time

100

ns

Feedback Bias Current

230

nA

Falling

1.6

Enable Threshold Voltage

V

Falling, –40°C

1.3

1.9

Enable Voltage Hysteresis

0.6

V

Enable Input Current

EN Input = 0 V

6

µA

Maximum Synchronization

1

MHz

Frequency

Synchronization Threshold

1.75

V

Voltage

50

Soft-Start Current

µA

–40°C

30

70

Thermal Shutdown Threshold

150

°C

(1)

MIN and MAX limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation

using Statistical Quality Control (SQC) methods. Limits are used to calculate TI's Average Outgoing Quality Level (AOQL).

(2)

Typical values represent most likely parametric norms at the conditions specified and are not ensured.

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