LP2951CDMR2G Linear Regulators (LDO) by ON Semiconductor

LDO Regulator, 100 mA, 30V, Micropower, with Shutdown

Semiconductors - ICs
> Power Management ICs - PMIC
> Voltage Regulators
> LDO Voltage Regulators
Status: Active
Series: LP2951
RoHS: Compliant
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The LP2950 and LP2951 are micropower low dropout (LDO) linear voltage regulators that are specifically designed to maintain proper regulation with an extremely low input-to-output voltage differential. These devices feature a very low quiescent bias current of 75 µA and are capable of supplying output currents in excess of 100 mA. Internal current and thermal limiting protection is provided. The LP2951 LDO linear voltage regulator has three additional features. The first is the Errorbar Output that can be used to signal external circuitry of an out of regulation condition, or as a microprocessor power-on reset. The second feature allows the output voltage to be preset to 5.0 V, 3.3 V or 3.0 V output (depending on the version) or programmed from 1.25 V to 29 V. It consists of a pinned out resistor divider along with direct access to the Error Amplifier feedback input. The third feature is a Shutdown input that allows a logic level signal to turn-off or turn-on the regulator output. Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension ofuseful battery life is desirable. The LP2950 is available in the three pin case 29 and DPAK packages, and the LP2951 is available in the eight pin dual-in-line, SO-8 and Micro-8 surface mount packages. The 'A' suffix devices feature an initial output voltage tolerance +/-0.5%.

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Prices starting from US$0.16

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Features

Wide Input Range: Up to 30 V
Rated Output Current of 100 mA
Low Dropout 50 mV at 100 mA and 380 mV at 100 mA
Low Quiescent Current: 75 µA (Typ)
Requires Only a 1.0 mF Output Capacitor for Stability
Internal Current and Thermal Limiting
LP2951 also has Error(bar) Output Signals an Out of Regulation Condition
LP2951 also has Output Programmable from 1.25 V to 29 V
LP2951 also has Logic Level Shutdown Input
Extremely Tight Line and Load Regulation
5.0 V, 3.3 V or 3.0 V +/- 0.5%
Benefits
Enables use with 24V rail
Sufficient power capability for MCU
Lower thermal impact than Vreg
Longer battery life
Small size, low cost system
Built-in protection features
Enhanced protection capability
Flexibility for various end product applications
Enhanced protection capability
Accurate system level design capability
Allows Use as a Regulator or Reference
Applications
Automotive
AC Analog Input Module
Optical Line Card
End Products
Avionics: RADAR
Logistics Robot CPU Board

Specifications

Description LP2951, Vout: 5.0 or Adj.; 1.0%
Compliance Pb-free Halide free
Output Single
Polarity Positive
VO (V) Adj
IO Typ (A) 0.1
VI Min (V) 2.3
VI Max (V) 30
VDO Typ (V) 0.35
Iq Typ (mA) 0.093
PSRR (dB) 48
Noise (µVrms) 56
Enable Yes
PowerGood Yes
Application Industrial
Package Type Micro8

Last 6 months Inventory & Pricing History

Alternative Descriptions

onsemi LP2951CDMR2G Voltage Regulator | RS
Ic, volt Regulator, fixed/Adjustable,+5V/+1.24 To +29V, bipolar, tssop,8Pin, plastic |Onsemi LP2951CDMR2G | Newark Electronics
LP2951 Series 100 mA 5 V/ADJ Surface mount LDO Regulator - MICRO-8 | Future Electronics
IC: voltage regulator | TME
LDO, ADJ, 1.25V TO 29V, 0.1A, MICRO-8 | element14

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LP2951CDMR2G?

Additional datasheets, footprints and schematics for LP2951CDMR2G are listed on our Part Details page. You can also find images and similar parts to LP2951CDMR2G on this page.

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What category does LP2951CDMR2G fall under?

The LP2951CDMR2G is listed under Power Management > Linear Regulators (LDO).

Can I view similar or alternative parts?

You can view similar parts to LP2951CDMR2G when available in the Linear Regulators (LDO) range under the specifications section at the bottom of the details page.

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Is the LP2951CDMR2G RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for LP2951CDMR2G have stock available?

Authorised distributors including RS, Newark Electronics, Future Electronics, TME and element14 have stock available or on a lead time for LP2951CDMR2G.

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