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参数资料
| 型号： | LTC3529EDCB#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC 5V 1.5A 8DFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 5V |
| 输入电压： | 1.8 V ~ 5.25 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.5MHz |
| 电流 - 输出： | 1.5A |
| 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： | 8-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-DFN（3x2） |
LTC3529
APPLICATIONS INFORMATION
The basic LTC3529 application circuit is shown in the Typi-
cal Application on the front page. The external component
selection is determined by the desired output current and
ripple voltage requirements of each particular application.
However, basic guidelines and considerations for the design
Although ceramic capacitors are recommended, low ESR
tantalum capacitors may also be used. A small ceramic
capacitor in parallel with a larger tantalum capacitor is
recommended in demanding applications that have large
load transients.
process are provided in this section.
Input Capacitor Selection
I LOAD ( V OUT – V IN )
Δ V P ? P =
Output Capacitor Selection
A low ESR (equivalent series resistance) output capacitor
should be used at the output of the LTC3529 to minimize
the output voltage ripple. Multilayer ceramic capacitors are
an excellent choice as they have extremely low ESR and
are available in small footprints. X5R and X7R dielectric
materials are strongly recommended over Y5V dielectric
because of their improved voltage and temperature coef-
?cients. Neglecting the capacitor ESR and ESL (equivalent
series inductance), the peak-to-peak output voltage ripple
can be calculated by the following formula, where f is the
frequency in MHz, C OUT is the capacitance in μF, and I LOAD
is the output current in amps.
C OUT ? V OUT ? f
Low ESR input capacitors reduce input switching noise
and reduce the peak current drawn from the battery. It
follows that ceramic capacitors are also a good choice
for input decoupling and should be located as close as
possible to the device. A 3.3μF input capacitor is suf?cient
for most applications. Larger values may be used without
limitation.
Capacitor Vendor Information
Both the input and output capacitors used with the LTC3529
must have low ESR and be designed to handle the large
AC currents generated by switching converters. The ven-
dors in Table 1 provide capacitors that are well suited to
LTC3529 application circuits.
Table 1. Capacitor Vendor Information
MANUFACTURER WEB SITE
PHONE
FAX
The internal loop compensation of the LTC3529 is designed
to be stable with output capacitor values of 6.5μF or greater.
This complies with USB On-The-Go speci?cations, which
limit the output capacitance to 6.5μF. In general use of the
LTC3529, the output capacitor should be chosen large
enough to reduce the output voltage ripple to acceptable
levels. A 6.8μF to 10μF output capacitor is suf?cient for
most applications. Larger values up to 22μF may be used
Taiyo Yuden
TDK
Sanyo
AVX
Murata
Sumida
www.t-yuden.com
www.component.
tdk.com
www.secc.co.jp
www.avxcorp.com
www.murata.com
www.sales@
us.sumida.com
(408) 573-4150 (408) 573-4159
(847) 803-6100 (847) 803-6296
(619) 661-6322 (619) 661-1055
(803) 448-9411 (803) 448-1943
(814) 237-1431 (814) 238-0490
(408) 321-9660 (408) 321-9308
to obtain extremely low output voltage ripple and improved
transient response.
3529fb
8
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相关代理商/技术参数 |
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|---|---|
| LTC3530 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Input Voltage Synchronous Buck-Boost DC/DC Converter |
| LTC3530EDD | 制造商:Linear Technology 功能描述:Conv DC-DC Single Non-Inv/Inv/Step Up/Step Down 1.8V to 5.5V 10-Pin DFN EP |
| LTC3530EDD#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 |
| LTC3530EDD#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: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 |
| LTC3530EDD-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Input Voltage Synchronous Buck-Boost DC/DC Converter |
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