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參數資料
| 型號： | LTC3534EDHC |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 1150 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 5 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WJED-1, DFN-16 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 218K |
| 代理商： | LTC3534EDHC |
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
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3534EDHC#PBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 16DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LTC3534EDHC#TRPBF | 功能描述:IC REG BUCK BOOST SYNC ADJ 16DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LTC3534EGN#PBF | 功能描述:IC REG BUCK BST SYNC 0.5A 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LTC3534EGN#TRPBF | 功能描述:IC REG BUCK BST SYNC 0.5A 16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數:1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LTC3535 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Channel 550mA 1MHz Synchronous Step-Up DC/DC Converter |
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