MAX774CSLASHD datasheet(7/16 Pages) MAXIM

Part #	MAX774C/D

Description	-5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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7 / 16 page

-5V/-12V/-15V or Adjustable,

High-Efficiency, Low IQ Inverting DC-DC Controllers

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__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

CIRCUIT OF FIGURE 2

V+ = 6.5V, ILOAD = 1A, VOUT = -5V

A: OUTPUT RIPPLE, 200mV/div

B: EXT WAVEFORM, 10V/div

C: INDUCTOR CURRENT, 2A/div

OPERATING WAVEFORMS

µs/div

CIRCUIT OF FIGURE 2

VOUT = -5V, V+ = 4.7V

ILOAD = 1.05A (1A/div)

INDUCTOR CURRENT NEAR FULL LOAD

µs/div

1A/div

CIRCUIT OF FIGURE 2

ILOAD = 300mA, VOUT = -5V

V+ = 8V, L = 22

µH

CONTINUOUS CONDUCTION

AT ONE-HALF CURRENT LIMIT

µs/div

1A/div

CIRCUIT OF FIGURE 2

V+ = 6V, ILOAD = 1A, VOUT = -5V

A: SHUTDOWN PULSE, 0V TO V+, 5V/div

B: VOUT, 2V/div

ENTRY/EXIT FROM SHUTDOWN

2ms/div

MAX774C/D Datasheet(PDF) 7 Page - Maxim Integrated Products