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LM2767 Arkusz danych(PDF) 5 Page - Texas Instruments |
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LM2767 Arkusz danych(HTML) 5 Page - Texas Instruments |
5 / 21 page LM2767 www.ti.com SNVS069D – FEBRUARY 2000 – REVISED AUGUST 2015 6.5 Electrical Characteristics Unless otherwise specified, typical limits are for TJ = 25°C, minimum and maximum limits apply over the full operating temperature range: V+ = 5 V, C1 = C2 = 10 μF. (1) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT V+ Supply voltage 1.8 5.5 V IQ Supply current No load 40 90 µA IL Output current 1.8 V ≤ V+ ≤ 5.5 V 15 mA ROUT Output resistance(2) IL = 15 mA 20 40 Ω ƒOSC Oscillator frequency See(3) 8 22 50 kHz ƒSW Switching frequency See(3) 4 11 25 kHz RL (5 kΩ) between GND and OUT 98% PEFF Power efficiency IL = 15 mA to GND 96% VOEFF Voltage conversion efficiency No load 99.96% (1) In the test circuit, capacitors C1 and C2 are 10-µF, 0.3-Ω maximum ESR capacitors. Capacitors with higher ESR may increase output resistance, and reduce output voltage and efficiency. (2) Specified output resistance includes internal switch resistance and capacitor ESR. See the details in Application and Implementation for positive voltage doubler. (3) The output switches operate at one half of the oscillator frequency, ƒOSC = 2 × ƒSW. Copyright © 2000–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2767 |
Podobny numer części - LM2767_15 |
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Podobny opis - LM2767_15 |
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