CAT37

3

Doc. No. MD-5005 Rev. T

Characteristics subject to change without notice

ABSOLUTE MAXIMUM RATINGS (1)

Parameter

Rating

Unit

8

V

SW voltage

20

V

Storage Temperature Range

-65 to +160

ºC

Junction Temperature

125

ºC

Lead Soldering Temperature (10 secs)

300

ºC

ESD Rating – Human Body Model

2000

V

RECOMMENDED OPERATING CONDITIONS

Parameter

Range

Unit

2.5 to 7

V

Ambient Temperature Range

-40 to +85

°C

Inductor L1

6.8 ± 20% typical

µH

Input Capacitor C1

1.0 ± 20% typical

µF

Output Capacitor C2

1.0 ± 20% typical

µF

0 to 20

mA

Typical application circuit with external components is shown on page 1.

ELECTRICAL OPERATING CHARACTERISTICS

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Input Voltage Range

2.5

7

V

Quiescent Current

0.5

0.7

mA

Shutdown Current

0.05

1

µA

FB Pin Voltage

4 LEDs at 15 mA

85

95

105

mV

FB Pin Leakage Current

1

2

µA

Shutdown High Threshold

0.85

V

Shutdown Low Threshold

0.25

V

Shutdown Pin Current

1

nA

Boost Converter Frequency

0.8

1.2

1.6

MHz

DC

Maximum Switch Duty Cycle

90

95

%

Switch Current Limit

400

550

780

mA

Switch Saturation Voltage

150

200

mV

Switch Leakage Current

0.01

5

µA

Efficiency

Figure 1 with specified components

83

%

Notes:

(1) These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods

may affect device reliability. All voltages are with respect to ground.