Electronic Components Datasheet Search |
|
LP2951-50DR Datasheet(PDF) 1 Page - Texas Instruments |
|
|
LP2951-50DR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page 1 2 3 4 8 7 6 5 INPUT FEEDBACK VTAP ERROR OUTPUT SENSE SHUTDOWN GND LP2951 D OR P PACKAGE (TOP VIEW) OUTPUT GND INPUT LP2950 LP PACKAGE (BOTTOM VIEW) LP2951 DRG PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5 INPUT FEEDBACK V TAP ERROR OUTPUT SENSE SHUTDOWN GND Thermal Pad LP2950 LP2951 www.ti.com SLVS582H – APRIL 2006 – REVISED MARCH 2012 ADJUSTABLE MICROPOWER VOLTAGE REGULATORS WITH SHUTDOWN Check for Samples: LP2950, LP2951 1 FEATURES • Wide Input Range: Up to 30 V • Stable With Low ESR (>12 m Ω) Capacitors • Rated Output Current of 100 mA • Current- and Thermal-Limiting Features • Low Dropout: 380 mV (Typ) at 100 mA • LP2950 Only (3-Pin Package) • Low Quiescent Current: 75 μA (Typ) – Fixed-Output Voltages of 5 V, 3.3 V, and 3 V • Tight Line Regulation: 0.03% (Typ) • LP2951 Only (8-Pin Package) • Tight Load Regulation: 0.04% (Typ) – Fixed- or Adjustable-Output Voltages: 5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ • High VO Accuracy – Low-Voltage Error Signal on Falling Output – 1.4% at 25°C – Shutdown Capability – 2% Over Temperature – Remote Sense Capability for Optimal • Can Be Used as a Regulator or Reference Output Regulation and Accuracy DESCRIPTION/ORDERING INFORMATION The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V. The 8-pin LP2951 also offers additional functionality that makes it particularly suitable for battery-powered applications. For example, a logic-compatible shutdown feature allows the regulator to be put in standby mode for power savings. In addition, there is a built-in supervisor reset function in which the ERROR output goes low when VOUT drops by 6% of its nominal value for whatever reasons – due to a drop in VIN, current limiting, or thermal shutdown. The LP2950 and LP2951 are designed to minimize all error contributions to the output voltage. With a tight output tolerance (0.5% at 25°C), a very low output voltage temperature coefficient (20 ppm typical), extremely good line and load regulation (0.3% and 0.4% typical), and remote sensing capability, the parts can be used as either low-power voltage references or 100-mA regulators. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Similar Part No. - LP2951-50DR |
|
Similar Description - LP2951-50DR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |