Micrel, Inc.

MIC2601/2

September 2009

3

M9999-090909-A

Absolute Maximum Ratings

(1)

Lead Temperature (soldering 10sec)......................... 260°C

ESD Rating..................................................................... 2kV

Operating Ratings

(2)

Junction Thermal Resistance

2mm x 2mm MLF-8 (

2mm x 2mm MLF-8 (

Electrical Characteristics

(3)

Symbol

Parameter

Condition

Min

Typ

Max

Units

Input Voltage Range

4.5

20

V

Internal Regulated Voltage

Note 4

6.0

V

Under-voltage Lockout

1.8

2.1

2.4

V

Quiescent Current

4.2

6

mA

Shutdown Current

0.08

2

µA

(±2%)

1.235

1.26

1.285

V

Feedback Voltage

(±3%) (over temperature)

1.222

1.298

V

Feedback Input Current

–550

nA

Line Regulation

0.04

1

%

Load Regulation

0.1

%

Internal Soft Start Resistor

15

kΩ

Maximum Duty Cycle

MIC2601

MIC2602

85

80

%

%

Switch Current Limit

Note 6

1.2

1.7

A

Switch Saturation Voltage

500

mV

Switch Leakage Current

0.01

5

µA

Enable Threshold

Turn ON

Turn OFF

1.5

0.3

V

V

Enable Pin Current

18.5

40

µA

Oscillator Frequency (MIC2601)

1.02

1.12

1.38

MHz

Oscillator Frequency (MIC2602)

1.7

1.92

2.3

MHz

Output Over-voltage Protection

10

15

20

%

150

°C

Over-temperature Threshold

Shutdown

Hysteresis

10

°C

Notes:

1. Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating

temperature, and the regulator will go into thermal shutdown.

2. The device is not guaranteed to function outside its operating rating.

3. Specification for packaged product only.

6. Guaranteed by design.