参数资料
型号: ADP3198JCPZ-RL
厂商: ON Semiconductor
文件页数: 8/31页
文件大小: 0K
描述: IC BUCK CTRLR 8BIT PROG 40LFCSP
产品变化通告: MFG CHG Notification ADI to ON Semi
标准包装: 2,500
应用: 控制器,Intel VRM
输入电压: 12V
输出数: 4
输出电压: 0.5 V ~ 1.6 V
工作温度: 0°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-VFQFN 裸露焊盘,CSP
供应商设备封装: 40-LFCSP-VQ(6x6)
包装: 带卷 (TR)
ADP3198
Pin No.
20
21
22 to 25
26
27 to 30
31
32 to 39
40
Mnemonic
IREF
IMON
SW4 to SW1
NC
PWM4 to
PWM1
VCC
VID7 to VID0
VIDSEL
Description
Current Reference Input. An external resistor from this pin to ground sets the reference current for I FB , I DELAY , I SS ,
I ILIMIT , and I TTSENSE .
Analog Output. Represents the total load current.
Current Balance Inputs. Inputs for measuring the current level in each phase. The SW pins of unused phases
should be left open.
No Connection.
Logic-Level PWM Outputs. Each output is connected to the input of an external MOSFET driver such as the
ADP3110A . Connecting the PWM4, and PWM3 outputs to VCC causes that phase to turn off, allowing the
ADP3198 to operate as a 2-, 3-, or 4-phase controller.
Supply Voltage for the Device. A 340 Ω resistor should be placed between the 12 V system supply and the VCC
pin. The internal shunt regulator maintains VCC = 5 V.
Voltage Identification DAC Inputs. These eight pins are pulled down to GND, providing a Logic 0 if left open. When in
normal operation mode, the DAC output programs the FB regulation voltage from 0.5 V to 1.6 V (see Table 4).
VID DAC Selection Pin. The logic state of this pin determines whether the internal VID DAC decodes VID0 to VID7
as extended VR10 or VR11 inputs.
Rev. 2 | Page 8 of 31 | www.onsemi.com
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