3.3V/5V or Adjustable-Output,

Single-Cell DC-DC Converters

_______________________________________________________________________________________

5

A: 5.0V OUTPUT VOLTAGE, AC COUPLED 20mV/div

B: OUTPUT CURRENT (0mA AND 10mA) 5mV/div

(TEKTRONIX P6042 CURRENT PROBE)

MAX866 LOAD-TRANSIENT RESPONSE

(5V MODE)

1ms/div

A

B

A: 3.3V OUTPUT VOLTAGE, 2V/div

B: SHDN INPUT VOLTAGE (0V AND 5V) 2V/div

MAX866 SHUTDOWN RESPONSE

(3.3V MODE)

10ms/div

A

B

A: 5.0V OUTPUT VOLTAGE, 2V/div

B: SHDN INPUT VOLTAGE (0V AND 5V) 5V/div

MAX866 SHUTDOWN RESPONSE

(5V MODE)

10ms/div

A

B

____________________________Typical Operating Characteristics (continued)

1.250

-60

MAX867 LBI AND FB THRESHOLD

vs. TEMPERATURE

1.260

TEMPERATURE (°C)

060

-20

-40

20

80

40

100

1.240

LBI

VFB (MAX867)

0

-60

MAX866 OUTPUT VOLTAGE ERROR

vs. TEMPERATURE

0.5

TEMPERATURE (°C)

060

-20

-40

20

80

40

100

-0.5

5V MODE

3.3V MODE

-60

START-UP VOLTAGE

vs. TEMPERATURE

1.0

0.9

0.8

0.7

0.6

TEMPERATURE (°C)

060

-20

-40

20

80

40

100

0.5

A: 3.3V OUTPUT VOLTAGE, AC COUPLED 20mV/div

B: OUTPUT CURRENT (0mA AND 10mA) 5mV/div

(TEKTRONIX P6042 CURRENT PROBE)

MAX866 LOAD-TRANSIENT RESPONSE

(3.3V MODE)

1ms/div

A

B