Micrel, Inc.

MIC2103/04

August 2012

5

M9999-080712-A

Electrical Characteristics

Oscillator

400

600

750

Switching Frequency

300

kHz

Maximum Duty Cycle

85

%

Minimum Duty Cycle

0

%

Minimum Off-Time

140

200

260

ns

Soft Start

Soft-Start time

5

ms

Short Circuit Protection

Current-Limit Threshold

-30

-14

0

mV

Short-Circuit Threshold

-23

-7

9

mV

Current-Limit Source Current

60

80

100

µA

Short-Circuit Source Current

27

36

47

µA

FET Drivers

DH, DL Output Low Voltage

0.1

V

DH, DL Output High Voltage

Or

V

DH On-Resistance, High State

2.1

3.3

Ω

DH On-Resistance, Low State

1.8

3.3

Ω

DL On-Resistance, High State

1.8

3.3

Ω

DL On-Resistance, Low State

1.2

2.3

Ω

SW, BST Leakage Current

50

µA

Power Good

Power Good Threshold Voltage

85

90

95

Power Good Hysteresis

6

Power Good Delay Time

100

µs

Power Good Low Voltage

70

200

mV

Thermal Protection

Over-Temperature Shutdown

160

°C

Over-Temperature Shutdown Hysteresis

4

°C

Notes:

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

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

3. The device is not guaranteed to function outside operating range.

4. Specification for packaged product only.