Datasheet > MAX17502GATB+

MAX17502GATB+

更新时间： 2024-11-16 01:21:59

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
21页	4066K
描述
60V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter

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替代型号

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MAX17502GATB+ 数据手册

MAX17502

60V, 1A, Ultra-Small, High-Efficiency,

Synchronous Step-Down DC-DC Converter

General Description

Beneﬁts and Features

●ꢀ EliminatesꢀExternalꢀComponentsꢀandꢀReduceꢀTotalꢀ

The MAX17502 high-efficiency, high-voltage, synchronous

step-down DC-DC converter with integrated MOSFETs

operates over a 4.5V to 60V input voltage range. It deliv-

ers output currents up to 1A at output voltages of 0.9V to

Cost

ꢀ

•ꢀ NoꢀSchottky-SynchronousꢀOperationꢀforꢀHighꢀ

EfficiencyꢀandꢀReducedꢀCost

•ꢀ Internal Compensation and Feedback Divider for

3.3V and 5V Outputs

92%V . The output voltage is accurate to within ±1.7%

over -40°C to +125°C. The MAX17502 is available in

compact TDFN and TSSOP packages. Simulation models

are available.

•ꢀ All-Ceramic Capacitors, Ultra-Compact Layout

●ꢀ ReducesꢀNumberꢀofꢀDC-DCꢀRegulatorsꢀtoꢀStock

The device features peak-current-mode control with

pulse-width modulation (PWM) and operates with fixed

switching frequency at any load. The low-resistance,

on-chip MOSFETs ensure high efficiency at full load and

simplify the layout.

ꢀ

•ꢀ Wideꢀ4.5Vꢀtoꢀ60VꢀInputꢀVoltageꢀRange

•ꢀ 0.9V to 92%V Output Voltage

•ꢀ Delivers up to 1A

•ꢀ 600kHzꢀandꢀ300kHzꢀSwitchingꢀFrequencyꢀOptions

•ꢀ Available in a 10-Pin, 3mm x 2mm TDFN and

14-Pin, 5mm x 4.4mm TSSOP Packages

A programmable soft-start feature allows users to reduce

input inrush current. The device also incorporates an

output enable/undervoltage lockout pin (EN/UVLO) that

allows the user to turn on the part at the desired input-

voltage level. An open-drain RESET pin provides a

delayed power-good signal to the system upon achieving

successful regulation of the output voltage.

●

ꢀ

ReducesꢀPowerꢀDissipation

•ꢀ Peak Efficiency > 90%

•ꢀ ShutdownꢀCurrentꢀ=ꢀ0.9μAꢀ(typ)

●ꢀ OperatesꢀReliablyꢀinꢀAdverseꢀIndustrialꢀEnvironmentsꢀ

ꢀ

•ꢀ Hiccup-ModeꢀCurrentꢀLimit,ꢀSinkꢀCurrentꢀLimit,ꢀ

and Autoretry Startup

ꢀ

•ꢀ Built-InꢀOutput-VoltageꢀMonitoringꢀ(Open-Drainꢀ

RESET Pin)

•ꢀ Resistor-ProgrammableꢀEN/UVLOꢀThreshold

•ꢀ Adjustable Soft-Start and Prebiased Power-Up

•ꢀ -40°Cꢀtoꢀ+125°CꢀIndustrialꢀTemperatureꢀRange

Applications

●ꢀ IndustrialꢀProcessꢀControlꢀ

●ꢀ HVACꢀandꢀBuildingꢀControlꢀ

●ꢀ BaseꢀStation,ꢀVOIP,ꢀTelecomꢀ

●ꢀ HomeꢀTheatreꢀ

ꢀ

●ꢀ Automotiveꢀ

Ordering Information appears at end of data sheet.

●ꢀ Battery-PoweredꢀEquipment

●ꢀ General-PurposeꢀPoint-of-Load

For related parts and recommended products to use with this part, refer

to www.maximintegrated.com/MAX17502.related.

19-6245 Rev 1; 11/12

12 3 4 5 6 7...21

中文翻译

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MAX17502GATB+ 替代型号

型号	品牌	替代类型	描述	数据表
MAX17502FATB+	MAXIM	类似代替	60V, 1A, Ultra-Small, High-Efficiency,Synchronous Step-Down DC-DC Converter
MAX17502EATB+	MAXIM	类似代替	60V, 1A, Ultra-Small, High-Efficiency,Synchronous Step-Down DC-DC Converter
MAX17502HAUD+	MAXIM	功能相似	Switching Regulator, Current-mode, 1.9A, 640kHz Switching Freq-Max, BICMOS, PDSO14, 5 X 4.

与MAX17502GATB+相关器件

型号	品牌	获取价格	描述	数据表
MAX17502GATB+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 1A, 640kHz Switching Freq-Max, BICMOS, PDSO1
MAX17502HAUD+	MAXIM	获取价格	Switching Regulator, Current-mode, 1.9A, 640kHz Switching Freq-Max, BICMOS, PDSO14, 5 X 4.
MAX17503	ADI	获取价格	4.5V-60V、2.5A、高效、同步降压型DC-DC转换器，带内部补偿
MAX17503SATP+	MAXIM	获取价格	Switching Regulator, Current-mode, 2450kHz Switching Freq-Max, BICMOS, TQFN-20
MAX17504	MAXIM	获取价格	4.5V–60V、3.5A、高效率、同步降压DC-DC转换器，带内部补偿
MAX17504	ADI	获取价格	4.5V–60V、3.5A、高效率、同步降压DC-DC转换器，带内部补偿
MAX17504ATP+	MAXIM	获取价格	Switching Regulator, Current-mode, 5.85A, 2450kHz Switching Freq-Max, BICMOS, TQFN-20
MAX17504ATP+T	MAXIM	获取价格	Switching Regulator/Controller, Current-mode, 3.5A, 2450kHz Switching Freq-Max, BICMOS, PQ
MAX17504SATP+	MAXIM	获取价格	Switching Regulator, Current-mode, 5.85A, 2450kHz Switching Freq-Max, BICMOS, TQFN-20
MAX17505	ADI	获取价格	4.5V-60V、1.7A、高效同步降压型DC-DC转换器，内部补偿

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