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参数资料
| 型号： | LTC3534EGN#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1150 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 0.150 INCH, LEAD FREE, PLASTIC, SSOP-16 |
| 文件页数： | 1/20页 |
| 文件大小： | 218K |
| 代理商： | LTC3534EGN#TR |
LTC3534
1
3534f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
7V, 500mA Synchronous
Buck-Boost DC/DC
Converter
The LTC
3534 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 multi-cell Alkaline/NiMH or
single Lithium-Ion/Polymer applications where the output
voltage is within the battery voltage range.
The LTC3534 offers extended VIN and VOUT ranges of 2.4V
to 7V and 1.8V to 7V, respectively. Quiescent current is
only 25μA in Burst Mode operation, maximizing battery
life in portable applications. Burst Mode operation is user
controlled and can be enabled by driving the PWM pin
low. If the PWM pin is driven high then xed frequency
switching is enabled.
Other features include xed 1MHz operating frequency, a
<1μA shutdown, short-circuit protection, programmable
soft-start, current limit and thermal overload protection.
The LTC3534 is available in the thermally enhanced 16-lead
(3mm
× 5mm) DFN and 16-lead GN packages.
4 AA Cells to 5V at 500mA Buck-Boost Converter
n Regulated Output with Input Voltages Above,
Below or Equal to the Output
n 2.4V to 7V Input and 1.8V to 7V Output
Voltage Range
n 5V VOUT at 500mA from 4 AA Cells
n Single Inductor
n Synchronous Rectication: Up to 94% Efciency
n Burst Mode Operation with 25μA IQ
n Output Disconnect in Shutdown
n 1MHz Switching Frequency
n <1μA Shutdown Current
n Small Thermally Enhanced 16-Lead (5mm
× 3mm ×
0.75mm) DFN and 16-Lead GN Packages
n Medical Instruments
n Portable Barcode Readers
n Portable Inventory Terminals
n USB to 5V Supply
n Handheld GPS
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
+
SW1
10k
15k
162k
649k
3534 TA01a
33pF
330pF
22μF
VOUT
5V
500mA
SW2
PGND2
PGND1 GND
PVIN
VIN
PWM
RUN/SS
BURST PWM
OFF ON
VOUT
FB
VC
5μH
LTC3534
10μF
4 AA
CELLS
VIN
3.6V TO 6.4V
VIN (V)
3.6
EFFICIENCY
(%)
100
90
95
85
80
75
6.0
3534 TA01b
4.4
4.0
4.8
5.6
6.4
5.2
PWM IOUT = 500mA
PWM IOUT = 300mA
4 AA Cells to 5V Efciency vs VIN
相关PDF资料 |
PDF描述 |
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| LTC3536IMSE#PBF | 4 A SWITCHING REGULATOR, 1440 kHz SWITCHING FREQ-MAX, PDSO12 |
| LTC3536EDD#PBF | 4 A SWITCHING REGULATOR, 1440 kHz SWITCHING FREQ-MAX, PDSO10 |
| LTC3546EFE#PBF | DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3535 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter |
| LTC3535EDD#PBF | 功能描述:IC REG BST SYNC ADJ 0.55A 12DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 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-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LTC3535EDD#PBF | 制造商:Linear Technology 功能描述:DC/DC CONVERTER IC |
| LTC3535EDD#TRPBF | 功能描述:IC REG BST SYNC ADJ 0.55A 12DFN 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 |
| LTC3535EDD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter |
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