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MAXREFDES1199: Two-Layer Board, 5V/2.5A, Synchronous Buck DC-DC Converter Using the MAX17244

MAXREFDES1199

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描述

The MAXREFDES1199 demonstrates how to build a lowcost buck DC-DC converter using the step-down converter MAX17244 for 5V DC output applications from a 12V to 32V input. This reference design delivers up to 2.5A at 5V. This design uses a two-layer board and minimizes component count to reduce cost.

The MAX17244 high-efficiency, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 3.5V to 36V input voltage range with 42V input transient protection. It uses a current-mode control architecture and can operate in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The device can operate in dropout conditions by running at 98% duty cycle. Under light-load applications, the external sync pin FSYNC logic input allows the device to operate either in PFM mode for reduced current consumption or fixed-frequency FPWM (forced-PWM) mode to eliminate frequency variation to minimize EMI. This converter delivers up to 2.5A and generates fixed output voltages of 3.3V/5V, along with the ability to program the output voltage between 1V to 10V. This device is available in a compact 16-pin (5mm x 5mm) TQFN package with exposed pad and 16-pin TSSOP.

The MAXREFDES1199 demonstrates how to build a low-cost buck DC-DC converter using the step-down converter MAX17244 for 5V DC output applications from a 12V to 32V input. This reference design delivers up to 2.5A at 5V. This design uses a two-layer board and minimizes component count to reduce cost.

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设计,建造,测试

图中的电路板已完全组装并经过测试。不可出售。

 

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
DC 18 60 0.5 - 24 12 Isolated -

参数化

输入类型 DC
Vin(Min) 18
Vin(Max) 60
Iout(Max) 0.5
单路/多路输出 -
Vout(V) 24
Pout(W) 12
隔离/非隔离 Isolated
拓扑 -

Maxim设备 (1)

器件号 名称 产品线 购买 设计套件和评估模块
MAX17244 3.5V至36V、2.5A、同步Buck转换器,28μA静态电流和低EMI 开关稳压器 立即购买 设计套件

Maxim设备 (1)

器件号 产品线
开关稳压器
3.5V至36V、2.5A、同步Buck转换器,28μA静态电流和低EMI

设计资料 (4)

标题 类型 尺寸 日期
maxrefdes1199-schematic PDF 11KB 2019-05-16
TTS MAXREFDES Test Results Template_Rev 0_0318 PDF 133KB 2019-05-16
maxrefdes1199-bom PDF 81KB 2019-05-16
maxrefdes1199-pcb PDF 1MB 2019-05-16
日期 类型
2019-05-16

maxrefdes1199-schematic

(PDF, 11KB)

2019-05-16

TTS MAXREFDES Test Results Template_Rev 0_0318

(PDF, 133KB)

2019-05-16

maxrefdes1199-bom

(PDF, 81KB)

2019-05-16

maxrefdes1199-pcb

(PDF, 1MB)

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