| Part Number(s) (NSID) |
Top View | Type | Pins | MSL Rating | Peak Reflow | RoHS Status |
CAD Symbols | Models | Package Marking Format |
|---|---|---|---|---|---|---|---|---|---|
| LP2951ACM/NOPB LP2951ACM |
 |
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951 ACMDD |
| LP2951ACM-3.0/NOPB LP2951ACM-3.0 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951A CM30DD |
| LP2951ACM-3.3/NOPB LP2951ACM-3.3 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951A CM33DD |
| LP2951ACMM/NOPB LP2951ACMM |
 |
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0DA |
| LP2951ACMM-3.0/NOPB LP2951ACMM-3.0 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0BA |
| LP2951ACMM-3.3/NOPB LP2951ACMM-3.3 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0CA |
| LP2951ACMMX/NOPB LP2951ACMMX |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0DA |
| LP2951ACMMX-3.0/NOPB LP2951ACMMX-3.0 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0BA |
| LP2951ACMMX-3.3/NOPB LP2951ACMMX-3.3 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0CA |
| LP2951ACMX/NOPB LP2951ACMX |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951 ACMDD |
| LP2951ACMX-3.0/NOPB LP2951ACMX-3.0 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951A CM30DD |
| LP2951ACMX-3.3/NOPB LP2951ACMX-3.3 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951A CM33DD |
| LP2951ACN/NOPB LP2951ACN |
 |
MDIP | 8 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LP 2951ACN |
| LP2951ACSD/NOPB LP2951ACSD |
 |
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 2951AC |
| LP2951ACSDX/NOPB LP2951ACSDX |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 2951AC |
| LP2951ACSDX-3.3/NOPB LP2951ACSDX-3.3 |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 51AC33 |
| LP2951CM/NOPB LP2951CM |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951 CMDD |
| LP2951CM-3.0/NOPB LP2951CM-3.0 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951C M30DD |
| LP2951CM-3.3/NOPB LP2951CM-3.3 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951C M33DD |
| LP2951CMM/NOPB LP2951CMM |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0DB |
| LP2951CMM-3.0/NOPB LP2951CMM-3.0 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0BB |
| LP2951CMM-3.3/NOPB LP2951CMM-3.3 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0CB |
| LP2951CMMX/NOPB LP2951CMMX |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0DB |
| LP2951CMMX-3.0/NOPB LP2951CMMX-3.0 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0BB |
| LP2951CMMX-3.3/NOPB LP2951CMMX-3.3 |
|
MINI SOIC | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
ZXTT L0CB |
| LP2951CMX/NOPB LP2951CMX |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951 CMDD |
| LP2951CMX-3.0/NOPB LP2951CMX-3.0 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951C M30DD |
| LP2951CMX-3.3/NOPB LP2951CMX-3.3 |
|
SOIC NARROW | 8 | 1 1 |
260 235 |
Detail | Download | N/A |
NSZXTT 2951C M33DD |
| LP2951CN/NOPB LP2951CN |
|
MDIP | 8 | 1 1 |
NA NA |
Detail | Download | N/A |
NSUZXYTTE# LP 2951CN |
| LP2951CSD/NOPB LP2951CSD |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 2951ACB |
| LP2951CSD-3.0/NOPB LP2951CSD-3.0 |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 51AC30B |
| LP2951CSD-3.3/NOPB LP2951CSD-3.3 |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 51AC33B |
| LP2951CSDX/NOPB LP2951CSDX |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 2951ACB |
| LP2951CSDX-3.0/NOPB LP2951CSDX-3.0 |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 51AC30B |
| LP2951CSDX-3.3/NOPB LP2951CSDX-3.3 |
|
LLP | 8 | 1 1 |
260 260 |
Detail | Download | N/A |
NS UZXYTT 51AC33B |
| 5962-3870501BPA (JL2951BPA) |
 |
CERDIP | 8 | 1 | NA | Detail | Download | N/A |
NS 5962- 3870501BPA 27014 Q ZSSXXYYA |
Description
The LP2950 and LP2951 are micropower voltage regulators with very low quiescent current (75μA typ.) and very low dropout voltage (typ. 40mV at light loads and 380mV at
The LP2950-5.0 is available in the surface-mount D-Pak package, and in the popular 3-pin TO-92 package for pin-compatibility with older 5V regulators. The 8-lead LP2951 is available in plastic, ceramic dual-in-line, LLP, or metal can packages and offers additional system functions.
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 5V, 3V, or 3.3V output (depending on the version), or programmed from 1.24V to 29V with an external pair of resistors.
Careful design of the LP2950/LP2951 has minimized all contributions to the error budget. This includes a tight initial tolerance (.5% typ.), extremely good load and line regulation (.05% typ.) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference.
| • | 5V, 3V, and 3.3V versions available |
| • | High accuracy output voltage |
| • | Guaranteed 100mA 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 (10mΩ to 6Ω) |
Diagrams
Typical Application
 Typical Application for LP2951
|
Connection Diagram
 8-Lead Dual In-Line Connection Diagram
 8-Lead LLP Connection Diagram (Top View)
|
Typical Performance 
|
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