LP2980-N_16 Datasheet, PDF (3/30 Pages) Texas Instruments – Micropower 50-mA Ultra Low-Dropout Regulator in SOT-23 Package

www.ti.com
5 Pin Configuration and Functions
SOT-23 (DBV) Package
5 Pins
Top View
LP2980-N
SNOS733O – APRIL 2000 – REVISED JUNE 2015
PIN
NO.
NAME
1
IN
2
GND
3
ON/OFF
4
N/C
5
OUT
Pin Functions
I/O
DESCRIPTION
I
Input voltage
-
Common ground (device substrate)
I
Logic high enable input
DO NOT CONNECT. Device pin 4 is reserved for post packaging test and calibration of the
LP2980-N V_OUT accuracy. Device pin 4 must be left floating. Do not connect to any potential.
-
Do not connect to ground. Any attempt to do pin continuity testing on device pin 4 is
discouraged. Continuity test results will be variable depending on the actions of the factory
calibration. Aggressive pin continuity testing (high voltage, or high current) on device pin 4
may activate the trim circuitry forcing VOUT to move out of tolerance.
O
Regulated output voltage
6 Specifications
6.1 Absolute Maximum Ratings⁽¹⁾⁽²⁾
Operating junction temperature
Lead temperature (soldering, 5 seconds)
Power dissipation⁽³⁾
Input supply voltage (survival)
Input supply voltage (operating)
Shutdown input voltage (survival)
Output voltage (survival)⁽⁴⁾
I_OUT (survival)
Input-output voltage (survival)⁽⁵⁾
Storage temperature
MIN
MAX
−40
125
260
Internally Limited
−0.3
16
2.1
16
−0.3
16
−0.3
9
Short-Circuit Protected
−0.3
16
–65
150
UNIT
°C
°C
V
V
V
V
V
°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Electrical 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 Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) The maximum allowable power dissipation is a function of the maximum junction temperature, T_J(MAX), the junction-to-ambient thermal
resistance, R_θJA, and the ambient temperature, T_A. The maximum allowable power dissipation at any ambient temperature is calculated
using P_(MAX) = ( (T_J(MAX) – T_A) / R_θJA).
The value of R_θJA for the SOT-23 package is 175.7°C/W. Exceeding the maximum allowable power dissipation will cause excessive die
temperature, and the regulator will go into thermal shutdown.
(4) If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2980-N output must be diode-clamped
to ground.
(5) The output PNP structure contains a diode between the IN and OUT pins that is normally reverse-biased. Reversing the polarity from
V_IN to V_OUT will turn on this diode (See Reverse Current Path).
Copyright © 2000–2015, Texas Instruments Incorporated
Product Folder Links: LP2980-N
Submit Documentation Feedback
3