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LM39501-5.0 bảng dữ liệu(PDF) 1 Page - HTC Korea TAEJIN Technology Co. |
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LM39501-5.0 bảng dữ liệu(HTML) 1 Page - HTC Korea TAEJIN Technology Co. |
1 / 6 page 5A Low-Voltage Low-Dropout Regulator LM39500/39501/39502 FEATURES •5.0A minimum guaranteed output current •400mV typical dropout voltage Ideal for 3.0V to 2.5V conversion Ideal for 2.5V to 1.8V or 1.5V conversion •1% initial accuracy •Low ground current •Current limiting and thermal shutdown •Reversed-battery protection •Reversed-leakage protection •Fast transient response •TTL/CMOS compatible enable pin-LM39501 only •Error flag output - LM39501 only •Ceramic capacitor stable(See application information) •Adjustable version - LM39502 only APPLICATIONS •Low-voltage Digatal Ics •LDO linear regulator for PC add-in cards •High-efficiency linear power supplies •Multimedia and PC processor supplies •SMPS post regulator •Low-voltage microcontrollers •Strong ARM™ processor supply ORDERING INFORMATION DESCRIPTION HTC TO-263 LM39500-X.X LM39500R- X.X TO-220 LM39502T-Adj LM39502-Adj LM39500T-X.X TO-220 LM39501T-X.X TO-220 ADJ OUT Device Marking LM39502R-Adj Logic low or open = Shutdown Supply (Input): +16V maximum supply Flag (Output): Open-collector error flag output. LM39501R-X.X TO-263 LM39501-X.X Regulator Output LM39501-X.X 1 GND FLG Ground pin and TAB are internally connected. LM39500-X.X Adjustment Input: Feedback input. Package LM39502-Adj TO-263 PIN DESCRIPTION Enable (Input) IN CMOS-compatible control input. Logic high = enable, logic * X.X = Fixed Vout = 1.5V, 1.8V, 2.5V, 3.3V, 5.0V The LM39500/1/2 is ideal for PC Add-In cards that need to convert from standard 5V or 3.3V, down to new, lower core voltages. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the LM39500/1/2 to provide 2.5V from a supply as low as 3V. The LM39500 also has fast transient response, for heavy switching applications. The device requires only 47F of output capacitance to maintain stability and achieve fast transient responseThe LM39500/1/2 is fully protected with overcurrent limiting,thermal shutdown, reversed-battery and reversed-lead in-sertion protection. The LM39501 offers a TTL-logic-compat-ible enable pin and an error flag that indicates undervoltage and overcurrent conditions. The LM39500/1/2 comes in the TO-220 and TO-263 packages and is an ideal upgrade to older,NPN-based linear voltage regulators. The LM39502 is adjustable version. TO263-3L / TO220-3L (39500-x.x Fixed only) 1. In 2. Gnd 3. Out 1. En 2. In 3. Gnd 4. Out 5. Flg or Adj TO263-5L / TL220-5L (39501-x.x & 39502 only) The LM39500, LM39501 and LM39502 is a 5A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum of external components. Utilizing Super beta PNP pass element, The LM39500 offers extremely low dropout (typically 400mV at 5A) and low ground current (typically 70mA at 5A). |
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