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| 型号： | MAX17112ETB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC CONV DC-DC STEP UP 10TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 应用： | LCD 监视器，笔记本电脑显示器 |
| 电源电压： | 2.6 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 产品目录页面： | 1412 (CN2011-ZH PDF) |
| 其它名称： | MAX17112ETB+TDKR |
High-Performance, Step-Up, DC-DC Converter
V IN
V MAIN
IN
OVP
IC SUPPLY
V L
CLOCK
VOLTAGE
LOGIC AND
DRIVER
LX
GND
SLOPE COMPENSATION
PWM
1.2MHz
OSCILLATOR
COMPARATOR
CURRENT
SENSE
4 μ A
ERROR AMPLIFIER
FB
SHUTDOWN
SHDN
Figure 2. Functional Diagram
SS
SOFT-START
1.24V
COMP
Detailed Description
The MAX17112 is a highly efficient, power-management
IC that employs a current-mode, fixed-frequency, PWM
architecture for fast-transient response and low-noise
operation. The high switching frequency (1MHz) allows
the use of ultra-small inductors and low-ESR ceramic
capacitors. The current-mode architecture provides fast-
transient response to pulsed loads. A compensation pin
(COMP) gives users flexibility in adjusting loop dynam-
ics. The internal MOSFET can generate output voltages
up to 20V from a 2.6V to 5.5V input voltage. The soft-
start function slowly ramps the input current and is pro-
grammable with an external capacitor. The input
overvoltage protection function prevents damage to the
MAX17112 from input surge voltages up to 24V.
The error amplifier compares the signal at FB to 1.24V
and varies the COMP output. The voltage at COMP
determines the current trip point each time the internal
MOSFET turns on. As the load changes, the error
amplifier sources or sinks current to the COMP output
to command the inductor peak current necessary to
service the load. To maintain stability at high duty
cycles, a slope compensation signal is summed with
the current-sense signal. At light loads, this architecture
allows the device to skip cycles to prevent overcharg-
ing the output capacitors.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17112EVKIT+ | 功能描述:电源管理IC开发工具 MAX17112 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 |
| MAX17113ETL+ | 功能描述:其他电源管理 Power-Supply Controller RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| MAX17113ETL+T | 功能描述:LCD 驱动器 Power-Supply Controller RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| MAX17113EVKIT+ | 功能描述:电源管理IC开发工具 MAX17113 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 |
| MAX17114ETM | 制造商:MAXIM 功能描述:Pb Free |
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