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ADP1614

650kHz /1.3 MHz、4 A、升压PWM DC-DC开关转换器

英文数据手册

Rev. B

推荐新设计使用

顶部

概览

优势和特点
产品详情

优势和特点

可调和固定限流选项：
最高可调电流：4A
固定电流：3A
输入电压范围：2.5 V至5.5V
固定频率选项：650kHz或1.3MHz
可调输出电压最高可达20V

可调软启动
欠压闭锁
热关断
3mm×3mm、10引脚LFCSP
ADIsimPower设计工具支持

产品详情

ADP1614是一款升压DC-DC开关转换器，集成了功率开关，能够提供高达20V的输出电压。ADP1614具有引脚可调电流限值，该限值通过外部电阻设置，升压开关频率固定于650kHz或1.3MHz。此外，ADP1614还提供固定3A限流和引脚可选频率。ADP1614的封装高度仅有0.8mm，特别适合空间受限的应用，如便携式设备和薄膜晶体管(TFT)液晶显示器(LCD)等。

ADP1614以电流模式脉冲宽度调制(PWM)方式工作，功效比最高可达94%。可调软启动可以防止器件启用时的涌入电流。PWM电流模式架构能提供出色的瞬态响应及简便的噪声滤波，并且允许使用节省成本的小型外部电感和电容。其它重要特性包括欠压闭锁(UVLO)、热关断(TSD)和逻辑控制使能。

ADP1614采用无铅、10引脚引脚架构芯片级封装(LFCSP)。

应用

TFT LCD偏置电源
便携式应用
工业/仪器设备

产品分类

电源管理
- 内部电源开关升压稳压器

产品生命周期推荐新设计使用

本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。

评估套件 (1)

EVAL-ADP1614

查看此评估套件详细信息

The ADP1614 evaluation board is a complete step-up, dc-to-dc switching converter application with components selected to allow operation over the full range of input and load conditions for the 5 V (ADP1614-650-EVALZ) and 15 V (ADP1614-1.3-EVALZ) output voltages. The boost switching frequency is fixed to either 650 kHz (ADP1614-650-EVALZ) or 1.3 MHz (ADP1614-1.3- EVALZ). The evaluation boards can be adjusted for different output voltages by changing the feedback resistors, R1 and R2. To ensure stable operation, external components L1, R_CL, C_OUT, R_COMP, and C_COMP may also need to be recalculated and adjusted when the output voltage is changed.

The ADP1614 evaluation board operates in current mode, pulsewidth modulation (PWM) with up to 94% efficiency. The current mode PWM architecture allows for excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors. Other key features include a 47 nF soft start capacitor, undervoltage lockout (UVLO), thermal shutdown (TSD), and jumper selected enable. The evaluation board demonstrates the operation and performance of the ADP1614.

This user guide includes I/O descriptions, setup instructions, the schematic, and the PCB layout drawings for the ADP1614 step-up converter evaluation board.

Complete specifications for the ADP1614 are available in the ADP1614 data sheet and should be consulted in conjunction with this document when using the evaluation board.

优势和特点

2.5 V to 5.5 V input voltage range
650 kHz or 1.3 MHz fixed frequency options
Adjustable current limit up to 4 A
Output voltage
5 V for ADP1614-650-EVALZ
15 V for ADP1614-1.3-EVALZ
Jumper for enable/shutdown control
Components optimized for the indicated output voltages

文档

数据手册 (2)

PDF

408 kB

ADP1614：650 kHz /1.3 MHz、4 A、升压PWM DC-DC开关转换器 (Rev. 0)

PDF

408 kB

ADP1614: 650 kHz/1.3 MHz, 4 A, Step-Up, PWM, DC-to-DC Switching Converter Data Sheet (Rev. B)

用户手册 (1)

PDF

268 kB

UG-437: Evaluating the ADP1614 650 kHz/1.3 MHz, 4 A, Step-Up, PWM, DC-to-DC Switching Converter

工具及仿真模型

LTspice

LTspice^®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

下载 LTspice 文档

LTspice中提供以下器件型号：

ADP1614

ADP1614-1

ADP1614-1.3

ADP1614-650

设计工具

ADP161x Coupled-SEPIC Design Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

ADP161x SEPIC-Cuk Design Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.

ADP161x Boost Regulator Design Tool

Microsoft Excel download tool from ADIsimPower to generate a power supply design complete with a schematic, bill of materials, and performance specifications.