LP2951
LP2951, LP2951ACD, LP2951ACD-3.0, LP2951ACD-3.0G, LP2951ACD-3.0R2, LP2951ACD-3.0R2G, LP2951ACD-3.3, LP2951ACD-3.3G, LP2951ACD-3.3R2, LP2951ACD-3.3R2G, LP2951ACDG, LP2951ACDM-3.0R2, LP2951ACDM-3.3R2, LP2951ACDM-3.3RG, LP2951ACDM-5.0R2, LP2951ACDMR2, LP2951ACDMR2G, LP2951ACDR2, LP2951ACDR2G, LP2951ACM-3.0/NOPB, LP2951ACM-3.3/NOPB, LP2951ACMM-3.0/NOPB, LP2951ACMM-3.3/NOPB, LP2951ACMM/NOPB, LP2951ACMMX-3.0/NOPB, LP2951ACMMX-3.3/NOPB, LP2951ACMMX/NOPB, LP2951ACM/NOPB, LP2951ACMX-3.0/NOPB, LP2951ACMX-3.3/NOPB, LP2951ACMX/NOPB, LP2951ACN, LP2951ACN-3.0, LP2951ACN-3.0G, LP2951ACN-3.3, LP2951ACN-3.3G, LP2951ACN-3.3/NOPB, LP2951ACNG, LP2951ACN/NOPB, LP2951ACSD-3.0/NOPB, LP2951ACSD-3.3/NOPB, LP2951ACSD/NOPB, LP2951ACSDX-3.0/NOPB, LP2951ACSDX-3.3/NOPB, LP2951ACSDX/NOPB, LP2951CD, LP2951CD-3.0, LP2951CD-3.0G, LP2951CD-3.0R2, LP2951CD-3.0R2G, LP2951CD-3.3, LP2951CD-3.3G, LP2951CD-3.3R2, LP2951CD-3.3R2G, LP2951CDG, LP2951CDM-3.0R2, LP2951CDM-3.0R2G, LP2951CDM-3.3R2, LP2951CDM-3.3R2G, LP2951CDMR2, LP2951CDMR2G, LP2951CDR2, LP2951CDR2G, LP2951CM, LP2951CM-3.0/NOPB, LP2951CM-3.3/NOPB, LP2951CMM-3.0, LP2951CMM-3.3/NOPB, LP2951CMM/NOPB, LP2951CMMX-3.0/NOPB, LP2951CMMX-3.3/NOPB, LP2951CMMX/NOPB, LP2951CM/NOPB, LP2951CMX, LP2951CMX-3.0/NOPB, LP2951CMX-3.3/NOPB, LP2951CMX/NOPB, LP2951CN, LP2951CN-3.0, LP2951CN-3.0G, LP2951CN-3.0/NOPB, LP2951CN-3.3, LP2951CN-3.3G, LP2951CN-3.3/NOPB, LP2951CNG, LP2951CN/NOPB, LP2951CSD-3.0/NOPB, LP2951CSD-3.3/NOPB, LP2951CSD/NOPB, LP2951CSDX-3.0/NOPB, LP2951CSDX-3.3/NOPB, LP2951CSDX/NOPB, LP2951D, LP2951DG4, LP2951DR, LP2951DRG4
100 mA, Low Power Low Dropout Voltage Regulator
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Description
LP2951 pinout The LP2950 and LP2951 are micropower 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 uA and are capable of supplying output currents in excess of 100 mA. Internal current and thermal limiting protection is provided.
The LP2951 has three additional features.
- The first is the Error 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 of useful battery life is desirable.
The LP2951 is available in the eight pin dual−in−line, SOIC−8 and Micro8 surface mount packages. The ‘A’ suffix devices feature an initial output voltage tolerance ±0.5%.
Parameters
| Parameter | LP2951ACD | LP2951ACD-3.0 | LP2951ACD-3.0G | LP2951ACD-3.0R2 | LP2951ACD-3.0R2G | LP2951ACD-3.3 | LP2951ACD-3.3G | LP2951ACD-3.3R2 | LP2951ACD-3.3R2G | LP2951ACDG | LP2951ACDM-3.0R2 | LP2951ACDM-3.3R2 | LP2951ACDM-3.3RG | LP2951ACDM-5.0R2 | LP2951ACDMR2 | LP2951ACDMR2G | LP2951ACDR2 | LP2951ACDR2G | LP2951ACM-3.0/NOPB | LP2951ACM-3.3/NOPB | LP2951ACMM-3.0/NOPB | LP2951ACMM-3.3/NOPB | LP2951ACMM/NOPB | LP2951ACMMX-3.0/NOPB | LP2951ACMMX-3.3/NOPB | LP2951ACMMX/NOPB | LP2951ACM/NOPB | LP2951ACMX-3.0/NOPB | LP2951ACMX-3.3/NOPB | LP2951ACMX/NOPB | LP2951ACN | LP2951ACN-3.0 | LP2951ACN-3.0G | LP2951ACN-3.3 | LP2951ACN-3.3G | LP2951ACN-3.3/NOPB | LP2951ACNG | LP2951ACN/NOPB | LP2951ACSD-3.0/NOPB | LP2951ACSD-3.3/NOPB | LP2951ACSD/NOPB | LP2951ACSDX-3.0/NOPB | LP2951ACSDX-3.3/NOPB | LP2951ACSDX/NOPB | LP2951CD | LP2951CD-3.0 | LP2951CD-3.0G | LP2951CD-3.0R2 | LP2951CD-3.0R2G | LP2951CD-3.3 | LP2951CD-3.3G | LP2951CD-3.3R2 | LP2951CD-3.3R2G | LP2951CDG | LP2951CDM-3.0R2 | LP2951CDM-3.0R2G | LP2951CDM-3.3R2 | LP2951CDM-3.3R2G | LP2951CDMR2 | LP2951CDMR2G | LP2951CDR2 | LP2951CDR2G | LP2951CM | LP2951CM-3.0/NOPB | LP2951CM-3.3/NOPB | LP2951CMM-3.0 | LP2951CMM-3.3/NOPB | LP2951CMM/NOPB | LP2951CMMX-3.0/NOPB | LP2951CMMX-3.3/NOPB | LP2951CMMX/NOPB | LP2951CM/NOPB | LP2951CMX | LP2951CMX-3.0/NOPB | LP2951CMX-3.3/NOPB | LP2951CMX/NOPB | LP2951CN | LP2951CN-3.0 | LP2951CN-3.0G | LP2951CN-3.0/NOPB | LP2951CN-3.3 | LP2951CN-3.3G | LP2951CN-3.3/NOPB | LP2951CNG | LP2951CN/NOPB | LP2951CSD-3.0/NOPB | LP2951CSD-3.3/NOPB | LP2951CSD/NOPB | LP2951CSDX-3.0/NOPB | LP2951CSDX-3.3/NOPB | LP2951CSDX/NOPB | LP2951D | LP2951DG4 | LP2951DR | LP2951DRG4 | |
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IC package | Package | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | Micro8™, 8-MSOP, 8-uMAX, 8-uSOP | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-SOIC (3.9мм ширина) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-DIP (300 mil) | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-LLP | 8-SOIC | 8-SOIC | 8-SOIC (3.9мм ширина) | 8-SOIC |
IC series | Series | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Manufacturer | Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | National Semiconductor | ON Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | Fairchild Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | Fairchild Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | ON Semiconductor | ON Semiconductor | ON Semiconductor | National Semiconductor | ON Semiconductor | ON Semiconductor | National Semiconductor | ON Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Working temperature | twork | -40 ~ 125 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Output voltage | Uout | 5 V | 3 V | 3 V | 3 V | 3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 5 V | 3 V | 3.3 V | 3.3 V | 5 V | 5 V | 5 V | 5 V | 5 V | 3 V | 3.3 V | 3 V | 3.3 V | (not set) | 3 V | 3.3 V | (not set) | (not set) | 3 V | 3.3 V | (not set) | 5 V | 3 V | 3 V | 3.3 V | 3.3 V | 3.3 V | 5 V | (not set) | 3 V | 3.3 V | (not set) | 3 V | 3.3 V | (not set) | 5 V | 3 V | 3 V | 3 V | 3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 5 V | 3 V | 3 V | 3.3 V | 3.3 V | 5 V | 5 V | 5 V | 5 V | (not set) | 3 V | 3.3 V | 3 V | 3.3 V | (not set) | 3 V | 3.3 V | (not set) | (not set) | (not set) | 3 V | 3.3 V | (not set) | 5 V | 3 V | 3 V | 3 V | 3.3 V | 3.3 V | 3.3 V | 5 V | (not set) | 3 V | 3.3 V | (not set) | 3 V | 3.3 V | (not set) | (not set) | (not set) | (not set) | (not set) |
Output current | IOUT | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <110 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <110 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <220 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA | =100 mA; <160 mA |
Channels | Channels | 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Dropout voltage | Udropout | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 380 mV100mA | 350 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | (not set) | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | (not set) | 380 mV100mA | 380 mV100mA | 380 mV100mA | 350 mV100mA | 350 mV100mA | 350 mV100mA | 380 mV100mA | 350 mV100mA | 350 mV100mA | 380 mV100mA | 350 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA | 380 mV100mA |
Regulator type | Regulator type | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||