LP2953QML, LP2953QML-SP

SNVS395C – NOVEMBER 2010 – REVISED APRIL 2013

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LP2953A Electrical Characteristics DC Parameters (continued)

The following conditions apply, unless otherwise specified.

Feedback pin is tied to 5V Tap pin. Output pin is tied to Output Sense Pin.

Sub-

Parameter

Test Conditions

Notes

Min

Max

Units

groups

170

µA

1

200

µA

2, 3

2.0

mA

1

2.5

mA

2, 3

Ground Pin Current

6.0

mA

1

8.0

mA

2, 3

28

mA

1

33

mA

2, 3

210

µA

1

Ground Pin Current at

Dropout

240

µA

2, 3

Ground Pin Current at

140

µA

1

Shutdown

500

mA

1

Current Limit

530

mA

2, 3

Thermal Regulation

0.2

%/W

1

1.215

1.245

V

1

Reference Voltage

1.205

1.255

V

2, 3

0.1

%

1

0.2

%

2, 3

Reference Voltage Line

Regulation

0.1

%

1

0.2

%

2, 3

0.4

%

1

Reference Voltage Load

Regulation

0.6

%

2, 3

40

nA

1

Feedback Pin Bias

Current

60

nA

2, 3

30

mA

1

Output "Off" Pulldown

Current

20

mA

2, 3

(2)

Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the ground pin current,

output load current, and current through the external resistive divider (if used).

(3)

(4)

Thermal regulation is the change in output voltage at a time T after a change in power dissipation, excluding load or line regulation

(5)

(6)

6

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