LP2985-N_15 Datasheet, PDF (5/41 Pages) Texas Instruments – LP2985-N Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and DSBGA Packages Designed for Use with Very Low ESR Output Capacitors

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LP2985-N
SNVS018X – MARCH 2000 – REVISED MAY 2015
7 Specifications
7.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)⁽¹⁾⁽²⁾
Operating junction temperature
Lead Temp. (Soldering, 5 sec.)
Power dissipation⁽³⁾
Input supply voltage (survival)
Input supply voltage (operating)
Shutdown input voltage (survival)
Output voltage (survival, See⁽⁴⁾)
I_OUT (survival)
Input-output voltage (survival, see⁽⁵⁾)
Storage temperature, T_stg
MIN
MAX
–40
125
260
Internally Limited
–0.3
16
2.5
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) 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/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_{6 JA}
Where the value of R_θJA for the SOT-23 package is 175.7°C/W in a typical PC board mounting and 180°C/W for YZR type DSBGA
package or 178.8°C/W for YPB type DSBGA package.
Exceeding the maximum allowable dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.
(4) For 12V option, output voltage survival: –0.3 to +16 V. If used in a dual-supply system where the regulator load is returned to a negative
supply, the LP2985-N 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 IN to
OUT will turn on this diode.
7.2 ESD Ratings
V_(ESD)
Electrostatic discharge
Human-body model (HBM), per
ANSI/ESDA/JEDEC JS-001⁽¹⁾
All pins except 3 and 4 (SOT-23)
All pins except A3 and B2
(DSBGA)
Pins 1, 2, and 5 (SOT-23)
Pins A1, C1, and C3 (DSBGA)
VALUE
±1000
±2000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
UNIT
V
7.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
V_IN
V_ON/OFF
I_OUT
T_J
Supply input voltage
ON/OFF input voltage
Output current
Operating junction temperature
MIN
3.1 ⁽¹⁾
0
–40
MAX
16
V_IN
150
125
(1) Recommended minimum V_IN is the greater of 3.1 V or V_OUT(max) + rated dropout voltage (max) for operating load current.
UNIT
V
V
mA
°C
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