LM4121

SNVS073C – APRIL 2000 – REVISED APRIL 2013

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Electrical Characteristics

LM4121-1.250V (continued)

25°C, and limits in boldface type apply over the

Symbol

Parameter

Conditions

Units

Long Term Stability

1000 hrs. @ 25°C

100

ppm

(4)

(4)

Electrical Characteristics

LM4121-ADJ

Symbol

Parameter

Conditions

Units

Output Voltage Initial

Accuracy

1.216

±0.2

%

LM4121A-ADJ

LM4121-ADJ

±0.5

Temperature

14

50

ppm/°c

Coefficient

Line Regulation

1.8V

0.0007

0.009

%/V

0.012

0 mA

0.03

0.08

0.17

1 mA

0.01

0.04

Load Regulation

%/mA

0.1

0.04

0.12

0.01

Minimum Operating

1.5

1.8

V

Voltage

Output Noise Voltage

0.1 Hz to 10 Hz

20

(3)

10 Hz to 10 kHz

30

Supply Current

160

250

µA

275

Power-down Supply

Current

Enable = 0.4V

1

µA

Enable = 0.2V

2

Reference Pin Bias

(4)

15

40

nA

Current

Logic High Input

1.6

1.5

V

Voltage

Logic Low Input

0.4

V

Voltage

0.2

Logic High Input

7

15

µA

Current

Logic Low Input

0.1

µA

Current

15

6

30

Short Circuit Current

mA

17

6

30

(1)

Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical

Quality Control (SQC) methods. The limits are used to calculate TI's Averaging Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely parametric norm.

(3)

(4)

Bias Current flows out of the Adjust pin.

4

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