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| 型号： | MAX5026EUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 40MA SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 3 V ~ 36 V |
| 输入电压： | 3 V ~ 11 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 40mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 包装： | 标准包装 |
| 供应商设备封装： | SOT-6 |
| 产品目录页面： | 1411 (CN2011-ZH PDF) |
| 其它名称： | MAX5026EUT+TDKR |
500kHz, 36V Output, SOT23,
Step-Up DC-DC Converters
trace lengths to reduce stray capacitance, trace resis-
tance, and radiated noise. The trace between the out-
put voltage-divider (MAX5025/MAX5026) and the FB
pin must be kept short, as well as the trace between
GND and PGND.
Inductor Layout
The shielded drum type inductors have a small air gap
around the top and bottom periphery. The incident fring-
ing magnetic field from this air gap to the copper plane
on the PC board tends to reduce efficiency. This is a
result of the induced eddy currents on the copper plane.
To minimize this effect, avoid laying out any copper
planes under the mounting area of these inductors.
30V Boost Application Circuit
Figures 2 and 3 show the MAX5025/MAX5026 operat-
ing in a 30V boost application. Figure 3 has an RC filter
to reduce noise at the output. These circuits provide
output currents greater than 4mA with an input voltage
of 5V or greater. They are designed by following the
Design Procedure section. Operating characteristics of
these circuits are shown in the Typical Operating
Characteristics section.
47 μ H A915BY-470M
V CC = 4.5V TO 11V
(MAX5025)
V CC = 3V TO 11V
V CC
L1 TOKO 47 μ H INDUCTOR
ZETEX SCHOTTKY DIODE
D1 ZHCS500
LX
V OUT
+30V
(MAX5026)
C1
4.7 μ F
MAX5025
MAX5026
SHDN
FB
R1
147k Ω
C2
1 μ F
R2
Figure 2. Adjustable 30V Output Circuit
PGND GND
6.34k Ω
47 μ H A915BY-470M
V CC = 4.5V TO 11V
(MAX5025)
V CC = 3V TO 11V
V CC
L1 TOKO 47 μ H INDUCTOR
ZETEX SCHOTTKY DIODE
D1 ZHCS500
LX
R3
100 Ω
V OUT
+30V
(MAX5026)
C1
4.7 μ F
MAX5025
MAX5026
SHDN
FB
R1
147k Ω
C2
1 μ F
C3
1 μ F
R2
PGND GND
Figure 3. Adjustable 30V Output Circuit with RC Filter
6.34k Ω
______________________________________________________________________________________
11
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相关代理商/技术参数 |
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| MAX5026EVKIT | 功能描述:电源管理IC开发工具 MAX5026-28 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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