Datasheet > 电源电路 > 开关式稳压器或控制器> TC1303B-NA3EUN

TC1303B-NA3EUN

更新时间： 2024-10-27 08:59:39

品牌	Logo	应用领域
美国微芯 - MICROCHIP		开关控制器开关式稳压器开关式控制器光电二极管电源电路开关式稳压器或控制器
页数	文件大小	规格书
38页	755K
描述
0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MO-187, MSOP-10

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TC1303B-NA3EUN 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

500 mA

synchronous buck regulator and 300 mA Low-Dropout

Regulator (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, Typical

• 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 Typical @

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

Functions (TC1303C and TC1304)

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

DFN or MSOP package.

- 300 ms Delay Used for Processor Reset

• Sequenced Startup and Shutdown (TC1304)

• Small 10-pin 3x3 DFN or MSOP Package Options

• Operating Junction Temperature Range:

- -40°C to +125°C

Additional protection features include: UVLO,

overtemperature and overcurrent protection on both

outputs.

For a complete listing of TC1303/TC1304 standard

parts, consult your Microchip representative.

• Undervoltage Lockout (UVLO)

• Output Short Circuit Protection

• Overtemperature Protection

Applications

• Cellular Phones

• Portable Computers

• USB-Powered Devices

• Handheld Medical Instruments

• Organizers and PDAs

DS21949C-page 1

12 3 4 5 6 7...38

中文翻译

下载PDF

与TC1303B-NA3EUN相关器件

型号	品牌	获取价格	描述	数据表
TC1303B-NB1EUNTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MO-187, MSOP-10
TC1303B-NB2EMFTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-NC0EUNTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MO-187, MSOP-10
TC1303B-NC2EMF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-NC2EMFTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-NC2EUNTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MO-187, MSOP-10
TC1303B-NC3EMF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-ND0EMFTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-ND1EMF	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P
TC1303B-ND1EMFTR	MICROCHIP	获取价格	0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, 0.9 MM HEIGHT, P

与TC1303B-NA3EUN相关文章

三星深化印度制造布局，供应链本地化进程加速
2024-10-29

9
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

6
纳微科技震撼发布GaNSlim革新氮化镓功率芯片
2024-10-18

35
意法半导体发布第四代SiC技术，助力电动汽车电驱
2024-10-15

44

产品中心

服务支持

精选活动

关于我们

帮助中心

TC1303B-NA3EUN

TC1303B-NA3EUN 数据手册

与TC1303B-NA3EUN相关器件

与TC1303B-NA3EUN相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

TC1303B-NA3EUN

TC1303B-NA3EUN 数据手册

与TC1303B-NA3EUN相关器件

与TC1303B-NA3EUN相关文章

您还可以找

您在本页遇到什么问题？