Micrel, Inc.

MIC2165

June 2010

4

M9999-060810-D

On Timer

Switching Frequency

450

600

750

kHz

Minimum Off-Time

200

300

400

ns

Maximum Duty Cycle

Results from Switching Frequency and Minimum

Off-Time

82

%

Minimum Duty Cycle

0

%

Bottom FET Active

-16

0.5

16

mV

Short Current Protection

Current Limit Threshold

98

133

182

mV

Short Circuit Current

24

48

72

mV

FET Drives

DH, DL Output Low Voltage

0.1

V

DH, DL Output High Voltage

or

V

2

3

Ω

DH On-Resistance

1.5

3

Ω

2

3

Ω

DL On-Resistance

1

2

Ω

SW, BST Leakage Current

30

µA

Power Good

Power Good Threshold Voltage

85

90

95

Power Good Hysteresis

6.0

Power Good Delay Time

100

µs

Power Good Low Voltage

70

200

mV

Thermal Protection

Over-temperature Shutdown

160

°C

Over-temperature Shutdown

Hysteresis

15

°C

Notes:

1. Exceeding the absolute maximum rating may damage the device.

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

dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.

4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.

5. Enable pin should not be left open.