LP2992_15 Datasheet, PDF (4/35 Pages) Texas Instruments – LP2992 Micropower 250-mA Low-Noise Ultralow-Dropout Regulator in SOT-23 and WSON Packages Designed for Use with Very Low-ESR Output Capacitors

LP2992
SNVS171I – NOVEMBER 2001 – REVISED NOVEMBER 2015
www.ti.com
6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)⁽¹⁾⁽²⁾
Lead temperature (soldering, 5 seconds)
Power dissipation⁽³⁾
Input supply voltage (survival)
Shutdown input voltage (survival)
Output voltage (survival)⁽⁴⁾
I_OUT (survival)
Input-output voltage (survival)⁽⁵⁾
Storage temperature, T_stg
MIN
MAX
260
Internally Limited
−0.3
16
−0.3
16
−0.3
9
Short-circuit protected
−0.3
16
−65
150
UNIT
°C
V
V
V
V
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) If Military- or Aerospace-specified devices are required, 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
Where the value of R_θJA for the SOT-23 package is 169.7°C/W in a typical PC board mounting and the WSON package is 72.3°C/W.
Exceeding the maximum allowable dissipation causes excessive die temperature, and the regulator goes into thermal shutdown.
(4) If used in a dual-supply system where the regulator load is returned to a negative supply, the LP2992 output must be diode-clamped to
ground.
(5) The output PNP structure contains a diode between the IN to OUT pins that is normally reverse-biased. Reversing the polarity from V_IN
to V_OUT turns on this diode.
6.2 ESD Ratings
V_(ESD)
Electrostatic
discharge
Human body model (HBM), per
ANSI/ESDA/JEDEC JS-001⁽¹⁾
Pins 3 and 4 (SOT)
Pins 1 and 3 (WSON)
All pins except 3 and 4 (SOT)
All pins except 1 and 3 (WSON)
VALUE
±1000
±2000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
UNIT
V
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
V_IN
V_ON/OFF
I_OUT
T_J
Input supply voltage
ON/OFF input voltage
Output current
Operating junction temperature
MIN
2.2 ⁽¹⁾
0
–40
MAX
16
V_IN
250
125
(1) Recommended minimum V_IN is the greater of 2.2 V or V_OUT + rated dropout voltage (maximum) for operating load current.
UNIT
V
V
mA
°C
4
Submit Documentation Feedback
Product Folder Links: LP2992
Copyright © 2001–2015, Texas Instruments Incorporated