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参数资料
| 型号： | LTC3533EDE |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 7 A SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | 4 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WGED-3, DFN-14 |
| 文件页数： | 1/16页 |
| 文件大小： | 313K |
| 代理商： | LTC3533EDE |
LTC3533
1
3533f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
2A Wide Input Voltage
Synchronous Buck-Boost
DC/DC Converter
The LTC3533 is a wide VIN range, highly efcient, xed
frequency, buck-boost DC/DC converter that operates
from input voltages above, below or equal to the output
voltage. The topology incorporated in the IC provides a
continuous transfer function through all operating modes,
making the product ideal for single cell lithium-ion/polymer
or multi-cell alkaline/NiMH applications where the output
voltage is within the input voltage range.
The LTC3533 features programmable Burst Mode opera-
tion, extended VIN and VOUT ranges down to 1.8V, and
increased output current. Switching frequencies up to
2MHz are programmed with an external resistor. The Burst
Mode threshold is programmed with a single resistor from
the BURST pin to GND.
Other features include 1A shutdown current, short
circuit protection, programmable soft-start, current limit
and thermal shutdown. The LTC3533 is housed in the
thermally enhanced 14-lead (3mm
× 4mm × 0.75mm)
DFN package.
Efciency
■ Regulated Output with Input Voltages Above,
Below or Equal to the Output
■ 1.8V to 5.5V (Input) and 5.25V (Output)
Voltage Range
■ 0.8A Continuous Output Current: VIN > 1.8V
■ 2A Continuous Output Current: VIN > 3V
■ Single Inductor
■ Synchronous Rectication: Up to 96% Efciency
■ Programmable Burst Mode Operation: IQ = 40A
■ Output Disconnect in Shutdown
■ Programmable Frequency from 300kHz to 2MHz
■ <1A Shutdown Current
■ Small Thermally Enhanced 14-Lead (3mm
× 4mm ×
0.75mm) DFN package
■ GSM Modems
■ Handheld Instruments
■ Digital Cameras
■ Smart Phones
■ Media Players
■ Miniature Hard Disk Drive Power
SW1
PVIN
VIN
RUN/SS
RT
SW2
PVOUT
VOUT
FB
LTC3533
10
F
VIN
2.4V TO 4.2V
340k
6.49k
100
F
47pF
VOUT
3.3V
1.5A
200k
0.1
F
107k
330pF
4.7pF
3533 TA01
2.2
H
33.2k
200k
PGND
SGND
ON
OFF
BURST
VC
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
OUTPUT CURRENT (mA)
0.1
40
EFFICIENCY
(%)
50
60
70
80
1
10
100
1000
10000
3533 TA01b
30
20
10
0
90
100
Burst Mode
OPERATION
VIN = 3.9V
VIN = 2.2V
VIN = 2.9V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3533EDE#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 14DFN 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 |
| LTC3533EDE#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC |
| LTC3533EDE#TRPBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 14DFN 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:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 包装:带卷 (TR) 供应商设备封装:10-MSOP 裸露焊盘 |
| LTC3533EDEPBF | 制造商:Linear Technology 功能描述:2A 1.8-5.5V Synch Buck-Boost DC/DC DFN14 |
| LTC3534 | 制造商:LINER 制造商全称:Linear Technology 功能描述:40V, 2A Synchronous Buck-Boost DC/DC |
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