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参数资料
| 型号： | LTC3534EGN#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK BST SYNC 0.5A 16SSOP |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.8 V ~ 7 V |
| 输入电压： | 2.4 V ~ 7 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 1MHz |
| 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-SSOP |
LTC3534
APPLICATIONS INFORMATION
COMPONENT SELECTION
2 RUN/SS
3 GND
4 PGND1
5 SW1
FB 15
V C 14
V IN 13
PV IN 12
V IN
6 SW2
7 PGND2
V OUT 11
PWM 10
V OUT
PWM
MULTIPLE VIAS
3534 F04
Figure 4. Recommended Component Placement. Traces Carrying High Current are Direct. Trace Area at FB and V C Pins
are Kept Low. Lead Length to Battery Should be Kept Short. Keep V OUT and V IN Ceramic Capacitors Close to their IC Pins.
V IN(MIN) ? ( V OUT – V IN(MIN) ) H
f ? ? I L ? V OUT
V OUT ? ( V IN(MAX) – V OUT ) H
L BUCK >
InductorSelection
The high frequency operation of the LTC3534 allows the
use of small surface mount inductors. The inductor ripple
current is typically set to 20% to 40% of the maximum
inductor current. For a given ripple the inductance terms
are given as follows:
L BOOST >
f ? ? I L ? V IN(MAX)
where f = switching frequency in Hz, typically 1MHz.
Table 1. Inductor Vendor Information
D I L = maximum allowable inductor ripple current, A
V IN(MIN) = minimum input voltage, V
V IN(MAX) = maximum input voltage, V
V OUT = output voltage, V
For high efficiency, choose a ferrite inductor with a high
frequency core material to reduce core loses. The induc-
tor should have low ESR (equivalent series resistance) to
reduce the I 2 R losses, and must be able to handle the peak
inductor current without saturating. Molded chokes or chip
inductors usually do not have enough core to support the
peak inductor currents in the 1A to 2A region. To minimize
radiated noise, use a shielded inductor. See Table 1 for a
suggested list of inductor suppliers.
SUPPLIER
Coilcraft
FDK
Murata
PHONE
(847) 639-6400
(408) 432-8331
(814) 237-1431
(800) 831-9172
FAX OR E-MAIL
(847) 639-1469
america@fdk.com
(814) 238-0490
WEBSITE
www.coilcraft.com
www.fdk.com
www.murata.com
Sumida
USA: (847) 956-0666 USA: (847) 956-0702
Japan: 81(3) 3607-5111 Japan: 81(3) 3607-5144
www.sumida.com
TDK
TOKO
(847) 803-6100
(847) 297-0070
(847) 803-6296
(847) 699-7864
www.component.tdk.com
www.tokoam.com
3534fb
12
For more information www.linear.com/LTC3534
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| 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 |
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| 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 |
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