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参数资料
| 型号： | LTC3531ES6-3.3#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BST SYNC 3.3V TSOT23 |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 1.8 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 200mA |
| 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： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-6 |
LTC3531/
LTC3531-3.3/LTC3531-3
200mA Buck-Boost
Synchronous DC/DC
Converters
FEATURES
DESCRIPTIO
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Regulated Output with Input Above, Below or Equal
to the Output
Single Inductor
Up to 90% Ef?ciency
V IN Range: 1.8V to 5.5V
200mA at 3.3V OUT from 3.6V Input
125mA at 3V OUT from 2.5V Input
Fixed V OUT Versions (TSOT, DFN): 3.3V, 3V
Adjustable V OUT Version (DFN): 2V to 5V
Burst Mode ? Operation, No External Compensation
Ultra Low Quiescent Current: 16μA, Shutdown
Current <1μA
Only 3 External Components Required
(Fixed Voltage Versions)
Short-Circuit Protection
Output Disconnect in Shutdown
Available in 6-Pin ThinSOT and 3mm × 3mm DFN
Packages
The LTC ? 3531/LTC3531-3.3/LTC3531-3 are synchronous
buck-boost DC/DC converters that operate from input
voltages above, below or equal to the output voltage. The
topology incorporated in the ICs provides a continuous
transfer through all operating modes, making the product
ideal for single cell Li-Ion and multicell alkaline or nickel
applications. The converters operate in Burst Mode, mini-
mizing solution footprint and component count as well as
providing high conversion ef?ciency over a wide range of
load currents.
The devices include two 0.5 Ω N-channel MOSFET switches
and two P-channel switches (0.5 Ω , 0.8 Ω ). Quiescent
current is typically 16μA, making the parts ideal for bat-
tery power applications. Other features include a <1μA
shutdown current, current limiting, thermal shutdown
and output disconnect. The parts are offered in a 6-pin
ThinSOT TM package for ?xed voltage versions or a 3mm ×
3mm DFN package for ?xed and adjustable versions.
APPLICATIO S
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
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Handheld Instruments
MP3 Players
Handheld computers
PDA/GPS
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6166527.
TYPICAL APPLICATIO
10 μ H
100
95
Ef?ciency vs V IN
V IN
3.1V TO
4.2V
Li-Ion
+
2.2 μ F
SW1 SW2
V IN V OUT
LTC3531-3.3
V OUT
3.3V
160mA
10 μ F
90
85
80
75
BOOST
MODE
4SW
MODE
BUCK
MODE
SHDN
GND
3531 TA01a
70
65
ON OFF
60
1.5
2
2.5
3
3.5
3.3V OUT AT 100mA
4 4.5 5 5.5
INPUT VOLTAGE (V)
3531 TA01b
3531fb
1
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相关代理商/技术参数 |
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| LTC3532 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller |
| LTC3532EDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Synchronous Buck-Boost DC/DC Converter |
| LTC3532EDD#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 10DFN 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 |
| LTC3532EDD#TRPBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 10DFN 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 |
| LTC3532EDD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Micropower Synchronous Buck-Boost DC/DC Converter |
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