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See Technical Specifications

LP2951ACSD/NOPB

100-mA, 30-V, low-dropout voltage regulator with power good & enable

Manufacturer:

TI
Mfr.Part #:

LP2951ACSD/NOPB
Datasheet:

LP2951ACSD/NOPB Datasheet (PDF)
Pbfree Code:

Yes
Part Life Cycle Code:

Active
Pin Count:

8
Reach Compliance Code:

compliant
EDA/CAD Models:

Request Free CAD Models for LP2951ACSD/NOPB

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LP2951ACSD/NOPB General Description

The LP2950-N and LP2951-N are micropower voltage regulators with very low quiescent current (75 µA typical) and very low dropout voltage (typical 40 mV at light loads and 380 mV at 100 mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the device increases only slightly in dropout, prolonging battery life.

Careful design of the LP2950-N/LP2951-N has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.

One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. Also, the part may be pin-strapped for a 5-V, 3-V, or 3.3-V output (depending on the version), or programmed from 1.24 V to 29 V with an external pair of resistors.

The LP2950-N is available in the surface-mount TO-252 package and in the popular 3-pin TO-92 package for pin-compatibility with older 5-V regulators. The 8-pin LP2951-N is available in plastic, ceramic dual-in-line, WSON, or metal can packages and offers additional system functions.

Key Features

Input Voltage Range: 2.3 V to 30 V
5-V, 3-V, and 3.3-V Output Voltage Versions Available
High Accuracy Output Voltage
Ensured 100-mA Output Current
Extremely Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Use as Regulator or Reference
Needs Minimum Capacitance for Stability
Current and Thermal Limiting
Stable With Low-ESR Output Capacitors (10 mΩ to 6 Ω)
LP2951-N Versions Only:
- Error Flag Warns of Output Dropout
- Logic-Controlled Electronic Shutdown
- Output Programmable From 1.24 V to 29 V

Specifications

Source Content uid	LP2951ACSD/NOPB	Pbfree Code	Yes
Part Life Cycle Code	Active	Pin Count	8
Reach Compliance Code	compliant	ECCN Code	EAR99
HTS Code	8542.39.00.01	Date Of Intro	1992-05-01
Adjustability	ADJUSTABLE	Dropout Voltage1-Max	0.6 V
Dropout Voltage1-Nom	0.38 V	Input Voltage Absolute-Max	30 V
Input Voltage-Max	30 V	Input Voltage-Min	2.3 V
JESD-30 Code	S-XDSO-N8	JESD-609 Code	e3
Length	4 mm	Line Regulation-Max	0.01%
Load Regulation-Max	0.01%	Moisture Sensitivity Level	1
Number of Functions	1	Number of Outputs	1
Number of Terminals	8	Operating Temperature TJ-Max	125 °C
Operating Temperature TJ-Min	-40 °C	Operating Temperature-Max	125 °C
Operating Temperature-Min	-40 °C	Output Current1-Max	0.1 A
Output Voltage1-Max	29 V	Output Voltage1-Min	1.24 V
Output Voltage1-Nom	5 V	Packing Method	TR
Peak Reflow Temperature (Cel)	260	Qualification Status	Not Qualified
Regulator Type	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	Seated Height-Max	0.8 mm
Surface Mount	YES	Technology	BIPOLAR
Terminal Finish	Matte Tin (Sn)	Terminal Form	NO LEAD
Terminal Pitch	0.8 mm	Terminal Position	DUAL
Time@Peak Reflow Temperature-Max (s)	NOT SPECIFIED	Voltage Tolerance-Max	1.5%
Width	4 mm