Datasheet > 电源电路 > 开关式稳压器或控制器> ADP2119ACPZ-1.2-R7

ADP2119ACPZ-1.2-R7

更新时间： 2024-02-23 19:05:51

品牌	Logo	应用领域
亚德诺 - ADI		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
24页	1112K
描述
2 A/1.25 A, 1.2 MHz, Synchronous, Step-Down DC-to-DC Regulators

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技术参数
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ADP2119ACPZ-1.2-R7 技术参数

生命周期：	Active	零件包装代码：	SOIC
包装说明：	HVSON,	针数：	10
Reach Compliance Code：	unknown	风险等级：	5.63
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	5.5 V	最小输入电压：	2.3 V
标称输入电压：	3.3 V	JESD-30 代码：	S-PDSO-N10
长度：	3 mm	功能数量：	1
端子数量：	10	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	3.5 A
标称输出电压：	1.2 V	封装主体材料：	PLASTIC/EPOXY
封装代码：	HVSON	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	座面最大高度：	0.85 mm
表面贴装：	YES	切换器配置：	BUCK
最大切换频率：	1380 kHz	温度等级：	AUTOMOTIVE
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	宽度：	3 mm
Base Number Matches：	1

ADP2119ACPZ-1.2-R7 数据手册

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ADP2119/ADP2120

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

ADP2119/ADP2120

VIN

PVIN

SYNC/MODE

PGOOD

TRK

EXPOSED

PAD

PGND

GND

NOTES

1. THE EXPOSED PAD SHOULD BE SOLDERED TO

AN EXTERNAL GROUND PLANE UNDERNEATH

THE IC FOR THERMAL DISSIPATION.

Figure 3. Pin Configuration (Top View)

Table 4. Pin Function Descriptions

Pin No.

Mnemonic

Description

VIN

Bias Voltage Input Pin. Connect a bypass capacitor (0.1 μF minimum) between this pin and GND and a

small (10 Ω) resistor between this pin and PVIN.

PVIN

PGND

GND

Power Input Pin. Connect this pin to the input power source. Connect a bypass capacitor between this pin and PGND.

Switch Node Output. Connect this pin to the output inductor.

Power Ground. Connect this pin to the power ground plane and to the high current return for the power MOSFET.

Analog Ground. Connect this pin to the ground plane.

Feedback Voltage Sense Input. Connect this pin to a resistor divider from V_OUT. For the fixed output version,

connect to V_OUTdirectly.

TRK

Tracking Input. To track a master voltage, drive TRK from a resistor divider from the master voltage. If the

tracking function is not used, connect TRK to VIN.

PGOOD

Power-Good Output (Open Drain). Connect this pin to a resistor to any pull-up voltage < 5.5 V.

SYNC/MODE Synchronization Input (SYNC). Connect this pin to an external clock between 1 MHz and 2 MHz to synchronize

the switching frequency to the external clock (see the Oscillator and Synchronization section for details).

FPWM/PFM Selection (MODE). When this pin is connected to VIN, the PFM mode is disabled and the part works

in continuous conduction mode (CCM) only. When this pin is connected to ground, the PFM mode is enabled

and becomes active at light loads.

Precision Threshold Enable Input Pin. An external resistor divider can be used to set the turn-on threshold. To

enable the part automatically, connect the EN pin to VIN. This pin has a 1 MΩ pull-down resistor to GND.

EPAD

Exposed Pad The exposed pad should be soldered to an external ground plane underneath the IC for thermal dissipation.

Rev. 0 | Page 6 of 24

1...3 4 567 8 9...24

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