Datasheet > ADP2139CB-1.2EVALZ

ADP2139CB-1.2EVALZ

更新时间： 2022-02-26 09:02:56

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	544K
描述
Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter

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ADP2139CB-1.2EVALZ 数据手册

Data Sheet

ADP2138/ADP2139

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VIN

SW MODE

GND VOUT

TOP VIEW

(BALL SIDE DOWN)

Not to Scale

Figure 2. Pin Configuration (Top View)

Table 5. Pin Function Descriptions

Pin No. Mnemonic Description

VIN

Power Source Input. VIN is the source of the PFET high-side switch. Bypass VIN to GND with a 4.7 μF or greater

capacitor as close to the ADP2138/ADP2139 as possible.

Switch Node Output. SW is the drain of the P-channel MOSFET switch and N-channel synchronous rectifier.

Connect the output LC filter between SW and the output voltage.

GND

MODE

Ground. Connect the input and output capacitors to GND.

Buck Activation. To turn on the buck, set EN to high. To turn off the buck, set EN to low.

Mode Input. Drive the MODE pin high for the operating mode to force continuous PWM switching. Drive the MODE

pin low to allow automatic PWM/PSM operating mode.

VOUT

Output Voltage Sensing Input.

Rev. C | Page 5 of 20

1 2 3 456 7 8...20

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