MAX1700EEET 查看數據表（PDF） - Maxim Integrated

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MAX1700EEET

1-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converters

Maxim Integrated 

1-Cell to 3-Cell, High-Power (1A),

Low-Noise, Step-Up DC-DC Converters

(TA = +25°C, unless otherwise noted.)

Typical Operating Characteristics (continued)

REFERENCE VOLTAGE

vs. TEMPERATURE

1.254

REFERENCE VOLTAGE

vs. REFERENCE CURRENT

1.254

FREQUENCY vs. TEMPERATURE

325

1.252

1.252

320

VOUT = 5V

315

310

1.250

1.250

305

1.248

1.248

1.246

1.246

1.244

-40 -20

0 20 40 60

TEMPERATURE (°C)

80 100

1.244

0

10 20 30 40 50 60 70 80

REFERENCE CURRENT (µA)

START-UP INPUT VOLTAGE

vs. OUTPUT CURRENT

2.3

NO-LOAD START-UP:

2.1 1.0V AT -40°C

1.9 0.79 AT +25°C

0.64V AT +85°C

1.7 CONSTANT-CURRENT LOAD

VOUT = 3.3V

1.5 L = 10µH

1.3 D1 = MBR0520L

1.1

0.9

0.7

0.5

0.01

TA = -40°C

TA = +25°C

TA = +85°C

0.1

1

10 100 1000

OUTPUT CURRENT (mA)

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

2.5

HEAVY-LOAD SWITCHING WAVEFORMS

(VOUT = 3.3V)

MAX1700-08

300

295

VOUT = 3.3V

290

285

280

-40 -20 0 20 40 60 80 100 120 140

TEMPERATURE (°C)

PEAK INDUCTOR CURRENT

vs. OUTPUT VOLTAGE

PWM

PFM

3 3.5 4 4.5 5 5.5

OUTPUT VOLTAGE (V)

LINE-TRANSIENT RESPONSE

MAX1700-09

VOUT

A

0V

A

B

0V

0A

C

B

1µs/div

VIN = 1.1V, IOUT = 200mA, VOUT = 3.3V

A = LX VOLTAGE, 2V/div

B = INDUCTOR CURRENT, 0.5A/div

C = VOUT RIPPLE, 50mV/div, AC COUPLED

5ms/div

IOUT = 0mA, VOUT = 3.3V

A = VIN, 1.1V TO 2.1V, 1V/div

B = VOUT RIPPLE, 50mV/div, AC COUPLED

6 _______________________________________________________________________________________

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