MAX848ESE datasheet(7/16 Pages) MAXIM

Part #	MAX848ESE

Description	1-Cell to 3-Cell, High-Power, Low-Noise, Step-Up DC-DC Converters

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

1-Cell to 3-Cell, High-Power,

Low-Noise, Step-Up DC-DC Converters

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

VIN = 3.6V, VOUT = 5V, COUT = 440µF

A = VOUT RIPPLE, 200mV/div, AC COUPLED

B = LOAD CURRENT, 100mA TO 1A, 0.5A/div,

PULSE WIDTH = 577

µs

MAX849

GSM LOAD-TRANSIENT RESPONSE

1ms/div

MAX848/9 TOC-14

VIN = 1.2V, VOUT = 3.3V, COUT = 440µF

A = VOUT RIPPLE, 200mV/div, AC COUPLED

B = LOAD CURRENT, 50mA TO 400mA, 0.2A/div,

PULSE WIDTH = 416

µs

MAX849

DECT LOAD-TRANSIENT RESPONSE

3.3V

2ms/div

MAX848/9 TOC-15

2.7

0.1k

10k

100k

MAX849 NOISE SPECTRUM

(VOUT = 3.3V, VIN = 1.2V, RLOAD = 50Ω)

FREQUENCY (Hz)

380

280

-40

100

MAX849 INTERNAL OSCILLATOR

FREQUENCY vs. TEMPERATURE

360

TEMPERATURE (°C)

320

300

-20

340

VOUT = 5V

VOUT = 3.3V

1.2

2.5

3.5

3.0

4.0

5.5

5.0

MAX849 PEAK INDUCTOR CURRENT

vs. OUTPUT VOLTAGE

1.4

1.8

2.0

OUTPUT VOLTAGE (V)

4.5

1.6

1.3

1.7

1.5

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