MAX1685EEE datasheet(6/16 Pages) MAXIM

номер детали	MAX1685EEE

подробное описание детали	Low-Noise, 14V Input, 1A, PWM Step-Down Converters

PDF	16 Pages

Scroll/Zoom	100%

производитель	MAXIM [Maxim Integrated Products]

домашняя страница	https://www.maximintegrated.com/en.html

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6 / 16 page

Low-Noise, 14V Input, 1A, PWM

Step-Down Converters

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)

1.0

1.2

1.1

1.4

1.3

1.7

1.6

1.5

1.8

101214

MAXIMUM LOAD CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

PWM OR NORMAL MODE

200

600

400

1,000

1,200

800

1,400

SAFE OPERATING AREA

INPUT VOLTAGE (V)

VOUT = 3.3V

100

300

200

400

200

400

600

800

1,000

DROPOUT VOLTAGE vs. LOAD CURRENT

LOAD CURRENT (mA)

VOUT = 3.3V

VOUT = 5V

INDUCTOR RESISTANCE INCLUDED

100

200

150

250

300

678

10 11 12 13 14 15

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE (VOUT = 3.3V)

INPUT VOLTAGE (V)

NORMAL MODE

LOW-POWER MODE

SCHOTTKY LEAKAGE

CURRENT INCLUDED

ILOAD

500mA/div

VOUT

50mV/div

2ms/div

LOAD-TRANSIENT RESPONSE

MAX1684/85-16

MAX1684, ILOAD = 0.1mA TO 1A, VOUT = 3.3V, VIN = 5V,

SYNC/PWM = 3.3V

2.0

2.5

3.0

3.5

4.0

4.5

5.0

MAX1684

NO-LOAD SUPPLY CURRENT

vs. INPUT VOLTAGE

(VOUT = 3.3V, PWM MODE)

INPUT VOLTAGE (V)

2.7

02468

PWM FIXED-FREQUENCY

OPERATION AREA

OUTPUT VOLTAGE (V)

MAX1685

MAX1684

VOUT

20mV/div

ILX

100mA/div

µs/div

SWITCHING WAVEFORM

MAX1684/85-17

MAX1684, ILOAD = 100mA, VOUT = 3.3V, VIN = 5V,

SYNC/PWM = 3.3V

VLX

5V/div

ILX

100mA/div

µs/div

SWITCHING WAVEFORM

MAX1684/85-18

MAX1684, ILOAD = 100mA, VOUT = 3.3V, VIN = 5V,

SYNC/PWM = 3.3V

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