LM4121 datasheet(3/22 Pages) TI

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LM4121

www.ti.com

SNVS073C – APRIL 2000 – REVISED APRIL 2013

Operating Range

(1)

Storage Temperature Range

−65°C to +150°C

Ambient Temperature Range

−40°C to +85°C

Junction Temperature Range

−40°C to +125°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 do not ensure specific performance limits. For ensured specifications and test

conditions, see Electrical Characteristics - LM4121-1.250V and Electrical Characteristics - LM4121-ADJ tables. The ensured

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated

under the listed test conditions.

Electrical Characteristics

LM4121-1.250V

Unless otherwise specified VIN = 3.3V, ILOAD = 0, COUT = 0.01µF, TA = Tj = 25°C. Limits with standard typeface are for Tj =

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

−40°C ≤ TA ≤ +85°C temperature range.

Symbol

Parameter

Conditions

Min (1)

Typ (2)

Max (1)

Units

VOUT

Output Voltage Initial

Accuracy

1.250

±0.2

LM4121A-1.250

LM4121-1.250

±0.5

TCVOUT/°C

Temperature

−40°C ≤ TA ≤ +125°C

ppm/°c

Coefficient

ΔVOUT/ΔVIN

Line Regulation

1.8V

≤ VIN ≤ 12V

0.0007

0.009

%/V

0.012

0 mA

≤ ILOAD ≤ 1 mA

0.03

0.08

0.17

1 mA

≤ ILOAD ≤ 5 mA

0.01

0.04

ΔVOUT/ΔILOAD

Load Regulation

%/mA

0.1

−1 mA ≤ ILOAD ≤ 0 mA

0.04

0.12

−5 mA ≤ ILOAD ≤ −1 mA

0.01

Min-VIN

Minimum Operating

ILOAD = 5mA

1.5

1.8

Voltage

Output Noise Voltage

0.1 Hz to 10 Hz

µVPP

10 Hz to 10 kHz

µVRMS

Supply Current

160

250

µA

275

ISS

Power-down Supply

VIN = 12V

Current

Enable = 0.4V

µA

Enable = 0.2V

Logic High Input

1.6

1.5

Voltage

Logic Low Input

0.4

Voltage

0.2

Logic High Input

µA

Current

Logic Low Input

0.1

µA

Current

VIN = 3.3V, VOUT = 0

ISC

Short Circuit Current

VIN = 12V, VOUT = 0

Hyst

Thermal Hysteresis

−40°C ≤ TA ≤ 125°C

0.5

mV/V

(3)

(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)

Thermal hysteresis is defined as the change in +25°C output voltage before and after exposing the device to temperature extremes.

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