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LM2771SD Datasheet(PDF) 6 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza LM2771SD
Descripción Electrónicos  Low-Ripple 250mA Switched Capacitor Step-Down DC/DC Converter
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2771SD Datasheet(HTML) 6 Page - National Semiconductor (TI)

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Typical Performance Characteristics Unless otherwise specified: V
IN = 3.6V, CIN =C1 = 1.0µF, COUT
= 4.7µF, T
A =25
oC. Capacitors are low-ESR multi-layer ceramic capacitors (MLCC’s). (Continued)
Load Step, 15mA to 200mA
Load Step, 200mA to 15mA
20183823
CH2: VOUT; Scale: 20mV/Div, AC Coupled
CH4: IOUT; Scale: 200mA/Div
Time scale: 20µs/Div
20183824
CH2: VOUT; Scale: 20mV/Div, AC Coupled
CH4: IOUT; Scale: 200mA/Div
Time scale: 10µs/Div
Line Step, 3.6V to 4.5V with Load=7.5
Ω(200mA)
Oscillator Frequency vs. Input Voltage
20183822
CH1: VIN; Scale: 1V/Div, AC Coupled
CH2: VOUT; Scale: 20mV/Div, AC Coupled
Time scale: 40µs/Div
20183825
Startup and Shutdown Behavior, Load=6
Ω(250mA)
20183816
CH1: VEN; Scale: 2V/Div, DC Coupled
CH2: VOUT; Scale: 500mV/Div, DC Coupled
Time scale: 100µs/Div
www.national.com
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