The LMZ12002EXT SIMPLE SWITCHER® power module is an easy-to-use step-down DC-DC solution capable of driving up to 2A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LMZ12002EXT is available in an innovative package that enhances thermal performance and allows for hand or machine soldering.

The LMZ12002EXT can accept an input voltage rail between 4.5V and 20V and deliver an adjustable and highly accurate output voltage as low as 0.8V. The LMZ12002EXT only requires three external resistors and four external capacitors to complete the power solution. The LMZ12002EXT is a reliable and robust design with the following protection features: thermal shutdown, input under-voltage lockout, output over-voltage protection, short-circuit protection, output current limit, and allows startup into a pre-biased output. A single resistor adjusts the switching frequency up to 1 MHz.

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Electrical Specifications

12W maximum total power output

Up to 2A output current

Input voltage range 4.5V to 20V

Output voltage range 0.8V to 6V

Efficiency up to 92%

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Key Features

-55°C to 125°C junction temperature range

Integrated shielded inductor

Simple PCB layout

Flexible startup sequencing using external soft-start capacitor and precision enable

Protection against inrush currents and faults such as input UVLO and output short circuit

Single exposed pad and standard pinout for easy mounting and manufacturing

Fast transient response for FPGAs and ASICs

Low output voltage ripple

Pin-to-pin compatible family:

LMZ14203EXT/2EXT/1EXT (42V max 3A, 2A, 1A)

LMZ14203/2/1 (42V max 3A, 2A, 1A)

LMZ12003/2/1 (20V max 3A, 2A, 1A)

Fully Webench® Power Designer enabled

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• Iout (Max) (A)
• 2
• Vin (Min) (V)
• 4.5
• Vin (Max) (V)
• 20
• Vout (Min) (V)
• 0.8
• Vout (Max) (V)
• 6
• Soft start
• Adjustable
• Features
• EMI Tested, Enable, Tracking
• Iq (Typ) (uA)
• 1000
• Regulated outputs (#)
• 1
• Switching frequency (Max) (kHz)
• 1000
• Switching frequency (Min) (kHz)
• 200
• Duty cycle (Max) (%)
• 85
• Topology
• Buck, Synchronous Buck

LMZ12002EXT的完整型号有：LMZ12002EXTTZ/NOPB、LMZ12002EXTTZE/NOPB、LMZ12002EXTTZX/NOPB，以下是这些产品的关键参数及官网采购报价：

LMZ12002EXTTZ/NOPB，工作温度：-55 to 125，封装：TO-PMOD (NDW)-7，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LMZ12002EXTTZ/NOPB的批量USD价格：12.454（1000+）

LMZ12002EXTTZE/NOPB，工作温度：-55 to 125，封装：TO-PMOD (NDW)-7，包装数量MPQ：45个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LMZ12002EXTTZE/NOPB的批量USD价格：12.454（1000+）

LMZ12002EXTTZX/NOPB，工作温度：-55 to 125，封装：TO-PMOD (NDW)-7，包装数量MPQ：500个，MSL 等级/回流焊峰值温度：Level-3-245C-168 HR，引脚镀层/焊球材料：SN，TI官网LMZ12002EXTTZX/NOPB的批量USD价格：10.454（1000+）

LMZ12002EXTEVAL — Simple Switcher® 电源模块 20V 输入电压、2A 扩展温度评估板

The SIMPLE SWITCHER power module evaluation board is optimized for peak performance and increased flexibility. By incorporating additional ceramic and an aluminum filter capacitor, the power module EVAL board demonstrates the low output ripple, fast transient response, and low conducted and (...)

LMZ12002EXT PSpice Transient Model

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)