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参数资料
| 型号： | TC1313-CO1EUN |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| 中文描述： | 500毫安同步降压稳压器，300 mA的LDO |
| 文件页数： | 1/28页 |
| 文件大小： | 392K |
| 代理商： | TC1313-CO1EUN |
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2005 Microchip Technology Inc.
DS21974A-page 1
TC1313
Features
Dual-Output Regulator (500 mA Buck Regulator
and 300 mA Low-Dropout Regulator (LDO))
Total Device Quiescent Current = 57 μA (Typ.)
Independent Shutdown for Buck and LDO
Outputs
Both Outputs Internally Compensated
Synchronous Buck Regulator:
- Over 90% Typical Efficiency
- 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)
Low-Dropout Regulator:
- Low-Dropout Voltage = 137 mV Typ. @
200 mA
- Standard Fixed-Output Voltages
(1.5V, 1.8V, 2.5V, 3.3V)
Small 10-pin 3X3 DFN or MSOP Package
Options
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
Description
The TC1313 combines a 500 mA synchronous buck
regulator and 300 mA Low-Dropout Regulator (LDO)
to provide a highly integrated solution for devices that
require multiple supply voltages. The unique combina-
tion 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.
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.
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.
The TC1313 is available in either the 10-pin DFN or
MSOP package.
Additional
protection
features
overtemperature and overcurrent protection on both
outputs.
For a complete listing of TC1313 standard parts,
consult your Microchip representative.
include:
UVLO,
Package Type
10-Lead DFN
1
2
6
8
7
9
10
5
4
3
SHDN2
V
IN2
V
OUT2
A
GND
P
GND
L
X
V
IN1
SHDN1
V
FB1
/V
OUT1
NC
10-Lead MSOP
1
2
3
6
8
7
9
10
5
4
SHDN2
V
IN2
V
OUT2
A
GND
P
GND
L
X
V
IN1
SHDN1
V
FB1
/V
OUT1
NC
500 mA Synchronous Buck Regulator,
+ 300 mA LDO
相关PDF资料 |
PDF描述 |
|---|---|
| TC1313-CO1EUNTR | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-CO2EMF | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-BB1EUN | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-BB1EUNTR | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
| TC1313-BB2EMF | 500 mA Synchronous Buck Regulator, + 300 mA LDO |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1313-DG0EMF | 功能描述:低压差稳压器 - LDO PWM/LDO combo RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TC1313-DG0EMFTR | 功能描述:低压差稳压器 - LDO PWM/LDO combo RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TC1313-PP0EMF | 功能描述:低压差稳压器 - LDO PWM LDO combo PG RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TC1313-PP0EMFTR | 功能描述:低压差稳压器 - LDO PWM LDO combo PG RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| TC1313-RD1EMF | 功能描述:低压差稳压器 - LDO PWM/LDO combo RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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