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| 型号： | MAX1896EUT#TG16 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.5A SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.6 V ~ 13 V |
| 输入电压： | 2.6 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1MHz ~ 1.8MHz |
| 电流 - 输出： | 500mA |
| 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： | 带卷 (TR) |
| 供应商设备封装： | SOT-6 |
1.4MHz SOT23 Current-Mode
Step-Up DC-DC Converter
Application Circuits
1-Cell to 3.3V SEPIC Power Supply
Figure 4 shows the MAX1896 in a single-ended primary
inductance converter (SEPIC) topology. This topology
is useful when the input voltage can be either higher or
lower than the output voltage, such as when converting
a single lithium-ion (Li+) cell to a 3.3V output. L1 and
L2 are two windings on a single inductor or two sepa-
rate inductors. The coupling capacitor between these
two windings must be a low-ESR type to achieve maxi-
mum efficiency, and must also be able to handle high
ripple currents. Ceramic capacitors are best for this
application.
V IN
Layout Procedure
Good PC board layout and routing are required in high-
frequency switching power supplies to achieve good
regulation, and stability. It is strongly recommended
that the evaluation kit PC board layouts be followed as
closely as possible. Refer to the MAX1896 EV kit for a
good layout. Place power components as close togeth-
er as possible, keeping their traces short, direct, and
wide. Avoid interconnecting the ground pins of the
power components using vias through an internal
ground plane. Instead, keep the power components
close together and route them in a star ground configu-
ration using component side copper, then connect the
star ground to internal ground using multiple vias.
Chip Information
2.6V TO 4.5V
L
10 μ H
SUMIDA
CD43-100
C IN
C1
10 μ F
10V
C2
0.1 μ F
TRANSISTOR COUNT: 970
ON/OFF
SHDN
IN
LX
V OUT
5V
NIHON
EC10QSO2L
MAX1896
0.1 μ F
C OUT
22 μ F
16V
GND
SS
FB
C SS
33nF
R2
R1
36k ?
12k ?
Figure 1. Typical Application Circuit
8
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相关代理商/技术参数 |
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| MAX1896EVKIT | 制造商:Maxim Integrated Products 功能描述:1.4MHZ SOT23 CURRENT-MODE STEP-UP DC-DC CONVE - Bulk |
| MAX1897EGP | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX1897EGP-T | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX1897EGP-TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1897ETP | 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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