5

Maxim Integrated

MAX1722/MAX1723/MAX1724

Pin Description

1ms/div

1V/div

5V

0

0

2V

SHUTDOWN RESPONSE

Ω

2V/div

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

-40

-15

10

35

60

85

SHUTDOWN INPUT THRESHOLD

vs. TEMPERATURE

TEMPERATURE (

°C)

RISING EDGE

FALLING EDGE

Typical Operating Characteristics (continued)

unless otherwise noted.)

MAX1724

MAX1722

MAX1723

OUT

LX

FB

GND

SHDN

BATT

NAME

4

5

—

2

3

1

Power Output. OUT also provides bootstrap power to the IC.

4

4

Internal N-channel MOSFET Switch Drain and P-Channel Synchronous

Rectifier Drain

5

5

Feedback Input to Set Output Voltage. Use a resistor-divider network to

adjust the output voltage. See

Setting the Output Voltage section.

3

3

Ground

2

2

PIN

Shutdown Input. Drive high for normal operation. Drive low for shutdown.

1

—

Battery Input and Damping Switch Connection

—

1

FUNCTION

200

μs/div

A

B

LOAD-TRANSIENT RESPONSE

3.3V

50mA

0