MIC2169B(2009) Просмотр технического описания (PDF) - Micrel

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Компоненты Описание

производитель

MIC2169B
(Rev.:2009)

500kHz PWM Synchronous Buck Control IC

Micrel 

Micrel, Inc.

MIC2169B

Parameter

Condition

Min Typ Max Units

Soft-Start

Soft-Start Current

Current Sense

After time out of internal timer. VCOMP = 0.8V

4

8.5

13

µA

CS Over Current Trip Point

Temperature Coefficient

VCS = VIN –0.25V

160 200 240 µA

1800

ppm/°C

Gate Drivers

Rise/Fall Time

Output Driver Impedance

Driver Non-Overlap Time(5)

Into 3000pF at VIN > 5V

Source, VIN = 4.5V

Sink, VIN = 4.5V

Source, VIN = 3V

Sink, VIN = 3V

15

ns

2.2

3

Ω

1.3

3

Ω

2.7

4

Ω

1.7

4

Ω

50

ns

Notes:

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

the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max),

the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation will result in excessive

die temperature.

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

3. Devices are ESD sensitive, handling precautions required.

4. Specification for packaged product only.

5. Guaranteed by design.

June 2009

5

M9999- 060309-A

(408) 944-0800

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