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参数资料
| 型号： | LTC3563EDC#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 0.5A 6DFN |
| 标准包装： | 500 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1.28V，1.87V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 2.25MHz |
| 电流 - 输出： | 500mA |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 6-DFN-EP（2x2） |
LTC3563
500mA, Synchronous
Step-Down DC/DC Converter
with Selectable Output Voltage
FEATURES
DESCRIPTIO
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High Ef?ciency: Up to 96%
Pin Selectable Output Voltage: 1.28V/1.87V
Low Ripple (<20mV P-P ) Burst Mode ? Operation:
I Q = 26μA
Very Low Quiescent Current: Only 26μA
2.5V to 5.5V Input Voltage Range
2.25MHz Constant Frequency Operation
Low Dropout Operation: 100% Duty Cycle
No Schottky Diode Required
Internal Soft-Start Limits Inrush Current
Shutdown Mode Draws <1μA Supply Current
±2% Output Voltage Accuracy
Current Mode Operation for Excellent Line and Load
Transient Response
Overtemperature Protected
Available in 2mm × 2mm 6-Lead DFN
The LTC ? 3563 is a high ef?ciency monolithic synchro-
nous buck converter using a constant frequency, current
mode architecture. A voltage select input allows the user
to program the output voltage to 1.28V or 1.87V. Supply
current during operation is only 26μA, dropping to <1μA in
shutdown. The 2.5V to 5.5V input voltage range makes the
LTC3563 ideally suited for single Li-Ion battery-powered
applications. 100% duty cycle provides low dropout opera-
tion, extending battery life in portable systems. Internal
power switches are optimized to provide high ef?ciency
and eliminate the need for an external Schottky diode.
The switching frequency is internally set at 2.25MHz,
allowing the use of small surface mount inductors and
capacitors. The LTC3563 is speci?cally designed to work
well with ceramic output capacitors, achieving very low
output voltage ripple and a small PCB footprint.
APPLICATIO S
The LTC3563 is con?gured for the power saving Burst
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Cellular Telephones
Wireless and DSL Modems
Digital Cameras
MP3 Players
PDAs and Other Handheld Devices
Mode Operation.
, LTC, LT, LTM and Burst Mode are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 5481178, 6580258, 6304066, 6127815, 6498466,
6611131, 5994885.
TYPICAL APPLICATIO
Ef?ciency and Power Loss vs Output Current
100
90
1000
V IN
2.7V TO 5.5V
C IN
10 μ F
CER
V IN SW
LTC3563
RUN V OUT
2.2 μ H
V OUT
1.28V/1.87V
500mA
C OUT
10 μ F
80
70
60
50
100
10
1.28V 1.87V
V SEL
CER
40
3563 TA01a
GND
30
20
1
10
0
V IN = 3.6V
V OUT = 1.87V
0.1
0.1
1
10 100
1000
OUTPUT CURRENT (mA)
3563 TA01b
3563f
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3564 | 制造商:LINER 制造商全称:Linear Technology 功能描述:2.25MHz, 1.25A Synchronous Step-Down Regulator |
| LTC3564EDCB#PBF | 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR BUCK 2.25MHZ 1.25A 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR, BUCK, 2.25MHZ, 1.25A, 制造商:Linear Technology 功能描述:VOLTAGE REGULATOR, BUCK, 2.25MHZ, 1.25A, DFN-6, Primary Input Voltage:5.5V, No. of Outputs:1, Output Current:1.25A, No. of Pins:6, Operating Temperature Min:-40C, Operating Temperature Max:125C, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-SWREG/Monolithic, Cut Tape 2.25MHz, 1.2A Synchronous Step-Down Regulator in T |
| LTC3564EDCB#TRMPBF | 功能描述:IC REG BUCK SYNC ADJ 1.25A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3564EDCB#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 1.25A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压（升压） 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式，混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:8-SOIC |
| LTC3564EDCB-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:2.25MHz, 1.25A Synchronous Step-Down Regulator |
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