Datasheet > 电源电路 > 开关式稳压器或控制器> TC1304-AH3EUN

TC1304-AH3EUN

更新时间： 2024-10-28 04:05:19

品牌	Logo	应用领域
美国微芯 - MICROCHIP		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
36页	613K
描述
500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output

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中文翻译

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技术参数
数据手册

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TC1304-AH3EUN 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	TSSOP,	针数：	10
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.07
其他特性：	AUTOMATIC PWM TO PFM MODE	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：	2.7 V
标称输入电压：	3.6 V	JESD-30 代码：	S-PDSO-G10
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	10	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	0.5 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装形状：	SQUARE	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
座面最大高度：	1.1 mm	表面贴装：	YES
切换器配置：	BUCK	最大切换频率：	2400 kHz
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3 mm	Base Number Matches：	1

TC1304-AH3EUN 数据手册

TC1303A/TC1303B/

TC1303C/TC1304

500 mA Synchronous Buck Regulator,

+ 300 mA LDO with Power-Good Output

Features

Description

• Dual-Output Regulator (500 mA Buck Regulator

and 300 mA Low-Dropout Regulator)

The TC1303/TC1304 combines a 500 mA synchro-

nous buck regulator and 300 mA Low-Dropout Regula-

tor (LDO) with a power-good monitor to provide a highly

integrated solution for devices that require multiple

supply voltages. The unique combination of an

integrated buck switching regulator and low-dropout

linear regulator provides the lowest system cost for

dual-output voltage applications that require one lower

processor core voltage and one higher bias voltage.

• Power-Good Output with 300 ms Delay

• Total Device Quiescent Current = 65 µA, Typ.

• Independent Shutdown for Buck and LDO

Outputs (TC1303)

• Both Outputs Internally Compensated

• Synchronous Buck Regulator:

- Over 90% Typical Efficiency

The 500 mA synchronous buck regulator switches at a

fixed frequency of 2.0 MHz when the load is heavy,

providing a low noise, small-size solution. When the

load on the buck output is reduced to light levels, it

changes operation to a Pulse Frequency Modulation

(PFM) mode to minimize quiescent current draw from

the battery. No intervention is necessary for smooth

transition from one mode to another.

- 2.0 MHz Fixed-Frequency PWM

(Heavy Load)

- Low Output Noise

- Automatic PWM to PFM mode transition

- Adjustable (0.8V to 4.5V) and Standard

Fixed-Output Voltages (0.8V, 1.2V, 1.5V,

1.8V, 2.5V, 3.3V)

The LDO provides a 300 mA auxiliary output that

requires a single 1 µF ceramic output capacitor,

minimizing board area and cost. The typical dropout

voltage for the LDO output is 137 mV for a 200 mA

load.

• Low-Dropout Regulator:

- Low-Dropout Voltage = 137 mV Typ. @

200 mA

- Standard Fixed-Output Voltages

(1.5V, 1.8V, 2.5V, 3.3V)

For the TC1303/TC1304, the power-good output is

based on the regulation of the buck regulator output, the

LDO output or the combination of both. The TC1304

features start-up and shutdown output sequencing.

• Power-Good Function:

- Monitors Buck Output Function (TC1303A)

- Monitors LDO Output Function (TC1303B)

- Monitors Both Buck and LDO Output Func-

tions (TC1303C and TC1304)

The TC1303/TC1304 is available in either the 10-pin

DFN or MSOP package.

- 300 ms Delay Used for Processor Reset

Additional protection features include: UVLO,

overtemperature and overcurrent protection on both

outputs.

• Sequenced Startup and Shutdown (TC1304)

• Small 10-pin 3X3 DFN or MSOP Package

Options

For a complete listing of TC1303/TC1304 standard

parts, consult your Microchip representative.

• Operating Junction Temperature Range:

- -40°C to +125°C

• Undervoltage Lockout (UVLO)

• Output Short Circuit Protection

• Overtemperature Protection

Applications

• Cellular Phones

• Portable Computers

• USB-Powered Devices

• Handheld Medical Instruments

• Organizers and PDAs

DS21949B-page 1

12 3 4 5 6 7...36

中文翻译

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与TC1304-AH3EUN相关器件

型号	品牌	获取价格	描述	数据表
TC1304-AH3EUNTR	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI0EMF	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI0EMFTR	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI0EUN	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI0EUNTR	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI1EMF	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI1EMFTR	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI1EUN	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI1EUNTR	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output
TC1304-AI2EMF	MICROCHIP	获取价格	500 mA Synchronous Buck Regulator, + 300 mA LDO with Power-Good Output

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