MAX8625AETD+ datasheet(6/16 Pages) MAXIM

Part #	MAX8625AETD+

Description	High-Efficiency, Seamless Transition, Step-Up/Down DC-DC Converter

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Manufacturer	MAXIM [Maxim Integrated Products]

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

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High-Efficiency, Seamless Transition,

Step-Up/Down DC-DC Converter

6

_______________________________________________________________________________________

2ms/div

STARTUP WAVEFORMS

VIN = 3.6V, LOAD = 5

Ω, VOUT = 3.288V

MAX8625A toc16

SHDN

2V/div

VOUT

20mV/div

IBATT

500mA/div

ILX

500mA/div

2ms/div

STARTUP WAVEFORMS (FIGURE 3)

VIN = 3.6V, LOAD = 30

Ω, VOUT = 1.5V

MAX8625A toc17

SHDN

2V/div

IBATT

100mA/div

VOUT

500mA/div

ILX

500mA/div

400

μs/div

LOAD TRANSIENT

VOUT = 3.3V

MAX8625A toc18

VOUT

100mV/div

(DC OFFSET = 3.3V)

ILX

500mA/div

IBATT

250mA/div

Typical Operating Characteristics (continued)

(VIN = 3.6V, SKIP = GND, TA = +25°C, Figure 4, unless otherwise noted.)

1ms/div

LINE TRANSIENT

VOUT = 3.3V, LOAD = 5.5

Ω,

VIN RAMP 3V TO 4V

MAX8625A toc19

CH1 = VIN

500mV/div

3V OFFSET

CH2 = VOUT

50mV/div

(AC-COUPLED)

BODE PLOT

GAIN AND PHASE vs. FREQUENCY

MAX8625A toc20

FREQUENCY (kHz)

100

10

-50

-40

-30

-20

-10

0

10

20

30

40

-60

1

1000

VIN = 3.6

VOUT = 3.3V

LOAD = 200mA

-180

-144

-108

-72

-36

0

36

72

108

144

180

GAIN

PHASE

0.90

0.94

0.92

0.98

0.96

1.04

1.02

1.00

1.06

-40

0

-20

20406080

100

OSCILLATOR FREQUENCY

vs. TEMPERATURE

TEMPERATURE (

°C)

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