CAT32

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3

Table 2. ABSOLUTE MAXIMUM RATINGS

Parameter

Rating

Unit

8

V

SW voltage

20

V

RSET voltage

1

V

Storage Temperature Range

−65 to +150

°C

Junction Temperature

125

°C

Lead Soldering Temperature (10 secs)

300

°C

ESD Rating – Human Body Model

2000

V

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

Table 3. RECOMMENDED OPERATING CONDITIONS

Parameter

Range

Unit

2 to 7

V

Ambient Temperature Range

−40 to +85

°C

Inductor L1

6.8 ±20% typical

mH

Input Capacitor C1

4.7 ±20% typical

mF

Output Capacitor C2

1.0 ±20% typical

mF

0 to 20

mA

NOTE: Typical application circuit with external components is shown on page 2.

Table 4. ELECTRICAL OPERATING CHARACTERISTICS

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Quiescent Current

0.5

0.7

mA

Ground Current in Shutdown

0.05

1

mA

LED Pin Voltage

120

180

mV

LED Current Adjust Range

5

40

mA

Programmed LED Current

33

38

45

mA

25

30

36

12.5

15

17.5

5

LED Pin Current Temperature Coefficient

−0.01

mA/°C

RSET Pin Voltage

100

mV

Shutdown Pin Logic High Level

0.85

V

Shutdown Pin Logic Low Level

0.25

V

Boost Converter Frequency

0.8

1.2

1.6

MHz

Switch Current Limit

400

550

780

mA

Switch Resistance

0.7

1.2

W

0.5

0.9

Switch Leakage Current

0.01

5

mA

Efficiency

Components shown on Figure 1

83

%