Datasheet > MIC2166

MIC2166

更新时间： 2023-12-06 20:11:25

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
28页	724K
描述
The MIC2166 is a synchronous adaptive on-time buck controller targeting high performance, cost s

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MIC2166 数据手册

Micrel, Inc.

MIC2166

Electrical Characteristics (Continued)

V_IN= V_EN= 12V; V_BST– V_SW= 5V; T_J= 25°C, unless noted. Bold values indicate −40°C ≤ T_J≤ 125°C.

Parameter

Condition

Min

Typ

Max

Units

On Timer

Switching Frequency

Minimum Off-Time

450

200

600

300

750

400

kHz

Results from Switching Frequency and

Minimum Off-Time

Maximum Duty Cycle

Minimum Duty Cycle

Short Current Protection

Current-Limit Threshold

Short-Circuit Current

FET Drives

V_FB= 1.0V

V_FB= 0.79V

V_FB= 0V

133

182

DH, DL Output Low Voltage

I_SINK= 10mA

0.1

V_DD− 0.1V

V_BST− 0.1V

DH, DL Output High Voltage

DH On-Resistance

I_SOURCE= 10mA

Pull Up, I_SOURCE= 20mA

Pull Down, I_SINK= 20mA

Pull Up, I_SOURCE= 20mA

Pull Down, I_SINK= 20mA

V_SW= V_BST= 0

1.5

Ω

DL On-Resistance

Ω

SW, BST Leakage Current

µA

Power Good (PGOOD)

PGOOD Threshold Voltage

PGOOD Hysteresis

Sweep V_FBfrom Low-to-High

Sweep V_FBfrom High-to-Low

Sweep V_FBfrom Low-to-High

6.0

100

%V_OUT

µs

PGOOD Delay Time

PGOOD Low Voltage

200

V_FB< 0.9 × V_NOM, I_PGOOD= 1mA

Thermal Protection

Over-temperature Shutdown

T_JRising

160

°C

Over-temperature Shutdown

Hysteresis

Notes:

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

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

3. The maximum allowable power dissipation of any T_A(ambient temperature) is P_D(max)= (T_J(max)– T_A) / θ_JA. Exceeding the maximum allowable power

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.

M9999-092410-C

September 2010

1 2 3 456 7 8...28

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