LP38691-ADJ, LP38693-ADJ

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SNVS324I – JANUARY 2005 – REVISED APRIL 2013

Absolute Maximum Ratings

(1) (2)

Storage Temperature Range

−65°C to +150°C

Lead Temp. (Soldering, 5 seconds)

260°C

2 kV

Internally Limited

V(max) All pins (with respect to GND)

-0.3V to 12V

(5)

Internally Limited

Junction Temperature

−40°C to +150°C

(1)

Absolute maximum ratings indicate limits beyond which damage to the component 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, see Electrical

Characteristics. Specifications do not apply when operating the device outside of its rated operating conditions.

(2)

If Military/Aerospace specified devices are required, please contact the TI Office/ Distributors for availability and specifications.

(3)

ESD is tested using the human body model which is a 100pF capacitor discharged through a 1.5k resistor into each pin.

(4)

At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink values (if a

heatsink is used). The junction-to-ambient thermal resistance (

with the device soldered down to minimum copper area (less than 0.1 square inch). If one square inch of copper is used as a heat

dissipator for the SOT-223, the

trace area, copper thickness, and the number of thermal vias used (refer to TI AN-1187 Application Report and the WSON MOUNTING

section in this datasheet). If power dissipation causes the junction temperature to exceed specified limits, the device will go into thermal

shutdown.

(5)

If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to

ground.

Operating Ratings

2.7V to 10V

Operating Junction

−40°C to +125°C

Temperature Range

Electrical Characteristics

statistical correlation, or design.

Symbol

Parameter

Conditions

Min

Max

Units

1.225

1.25

1.275

ADJ Pin Voltage

V

3.2V

1.200

1.25

1.300

0.03

0.1

%/V

1.8

5

%/A

80

145

430

725

65

110

mV

330

550

45

100

250

450

Quiescent Current

55

100

0.001

1

µA

(LP38693-ADJ Only)

Minimum Load Current

100

(1)

Typical numbers represent the most likely parametric norm for 25°C operation.

(2)

Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.

(3)

Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from 1mA to

full load.

(4)

Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100mV of nominal value.

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