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参数资料
| 型号： | MAX1928EUB15+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC 1.5V .8A 10UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 降压（降压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 1.5V |
| 输入电压： | 2.6 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 800kHz ~ 1.2MHz |
| 电流 - 输出： | 800mA |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 10-µMAX |
Low-Output-Voltage, 800mA, PWM Step-Down
DC-DC Converters
C f = ESR OUT
Solving for C f gives:
R × C
R C
or 22pF, whichever is greater.
Standard Application Circuits
Figures 3 and 4 are standard applications circuits for
the MAX1927/MAX1928. Figure 3 illustrates the preset
output voltages (MAX1928), while Figure 4 shows the
adjustable configuration (MAX1927). Table 2 lists part
ground pins at a single common node in a star ground
configuration. The external voltage feedback network
should be very close to the FB pin, within 0.2in (5mm).
Keep noisy traces, such as those from the LX pin, away
from the voltage feedback network. Position the bypass
capacitors as close as possible to their respective pins
to minimize noise coupling. For optimum performance,
place input and output capacitors as close to the
device as possible. Connect GND and PGND to the
highest quality system ground. The MAX1928 evalua-
tion kit illustrates an example PC board layout and rout-
ing scheme.
numbers and suppliers for the components used in
these circuits.
PC Board Layout and Routing
High switching frequencies and large peak currents
make PC board layout a very important part of design.
Good design minimizes EMI, noise on the feedback
paths, and voltage gradients in the ground plane, all of
which can result in instability or regulation errors.
Connect the inductor, input filter capacitor, and output
filter capacitor as close together as possible and keep
their traces short, direct, and wide. Connect their
Table 2. Suggested Parts/Suppliers
TRANSISTORS: 3282
PROCESS: BiCMOS
Chip Information
PART
Inductor
Input/Output Capacitors
COMP Capacitor
REF Capacitor
PART NUMBER
CDRH3D16-4R7
JMK212BJ106MG
GRM1881X1H561J
EMK107BJ104KA
MANUFACTURER
Sumida
Taiyo Yuden
Murata
Taiyo Yuden
PHONE
USA 847-956-0666
Japan 81-3-3607-5111
408-573-4150
770-436-1300
408-573-4150
WEBSITE
www.sumida.com
www.t-yuden.com
www.murata.com
www.t-yuden.com
______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1928EUB15+ | 功能描述:直流/直流开关转换器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1928EUB15+T | 功能描述:直流/直流开关转换器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1928EUB15-T | 功能描述:直流/直流开关转换器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1928EUB18 | 功能描述:直流/直流开关转换器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1928EUB18+ | 功能描述:直流/直流开关转换器 800mA PWM Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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