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LMV431IM5 Datasheet(PDF) 1 Page - Texas Instruments |
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LMV431IM5 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page REF CATHODE ANODE LMV431, LMV431A, LMV431B www.ti.com SNVS041F – MAY 2004 – REVISED MAY 2005 LMV431/LMV431A/LMV431B Low-Voltage (1.24V) Adjustable Precision Shunt Regulators Check for Samples: LMV431, LMV431A, LMV431B 1 FEATURES DESCRIPTION The LMV431, LMV431A and LMV431B are precision 2 • Low Voltage Operation/Wide Adjust Range 1.24V shunt regulators capable of adjustment to 30V. (1.24V/30V) Negative feedback from the cathode to the adjust pin • 0.5% Initial Tolerance (LMV431B) controls the cathode voltage, much like a non- • Temperature Compensated for Industrial inverting op amp configuration (Refer to Symbol and Functional diagrams). A two resistor voltage divider Temperature Range (39 PPM/°C for the terminated at the adjust pin controls the gain of a LMV431AI) 1.24V band-gap reference. Shorting the cathode to • Low Operation Current (55µA) the adjust pin (voltage follower) provides a cathode • Low Output Impedance (0.25 Ω) voltage of a 1.24V. • Fast Turn-On Response The LMV431, LMV431A and LMV431B have • Low Cost respective initial tolerances of 1.5%, 1% and 0.5%, and functionally lends themselves to several applications that require zener diode type APPLICATIONS performance at low voltages. Applications include a • Shunt Regulator 3V to 2.7V low drop-out regulator, an error amplifier • Series Regulator in a 3V off-line switching regulator and even as a voltage detector. These parts are typically stable with • Current Source or Sink capacitive loads greater than 10nF and less than • Voltage Monitor 50pF. • Error Amplifier The LMV431, LMV431A and LMV431B provide • 3V Off-Line Switching Regulator performance at a competitive price. • Low Dropout N-Channel Series Regulator Connection Diagram *Pin 1 is not internally connected. *Pin 2 is internally connected to Anode pin. Pin 2 should be either floating or connected to Anode pin. Figure 1. TO-92: Plastic Package Figure 2. SOT-23-5 Top View Top View Figure 3. SOT-23-3 Top View 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. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2005, 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. |
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