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参数资料
| 型号： | MAX1708 |
| 厂商： | Maxim Integrated Products, Inc. |
| 元件分类： | DC/DC变换器 |
| 英文描述： | High-Frequency, High-Power, Low-Noise, Step-Up DC-DC Converter |
| 中文描述： | 高频、大功率、低噪声、升压型DC-DC转换器 |
| 文件页数： | 8/13页 |
| 文件大小： | 332K |
| 代理商： | MAX1708 |
M
High-Frequency, High-Power, Low-Noise,
Step-Up DC-DC Converter
8
_______________________________________________________________________________________
Pin Description
PIN
1
2
NAME
ONB
ONA
FUNCTION
Shutdown Input. When
ONB
= high
and
ONA = low, the device turns off (Table 1).
On-Control Input. When ONA = high
or
ONB
= low, the device turns on (Table 1).
3, 4, 5
LX
Drain of N-Channel Power Switch. Connect pins 3, 4, and 5 together with wide traces. Connect
an external Schottky diode from LX to V
OUT
. (Figure 1)
Ground
6, 9
GND
7
SS/LIM
Soft-Start and/or Current-Limit Input. Connect a capacitor from SS/LIM to GND to control the
rate at which the device reaches current limit (soft-start). To reduce the current limit from the
preset values, connect a resistor from SS/LIM to GND (see
Design Procedure
). During
shutdown, SS/LIM is internally pulled to GND to discharge the soft-start capacitor.
8
REF
Voltage Reference Output. Bypass with a 0.22μF capacitor to GND. Maximum REF load is
50μA.
10
OUT
Output Voltage Sense Input. The device is powered from OUT. Bypass with a 0.1μF capacitor
to PGND with less than 5mm trace length. Connect a 2
series resistor from the output filter
capacitor (0.1μF) to OUT (Figure 1).
11
FB
DC-DC Converter Feedback Input. Connect FB to GND for internally set output voltage (see
3.3/
5 pin description). Connect a resistor-divider from the output to set the output voltage in the
+2.5V to +5.5V range. FB regulates to +1.24V (Figure 4).
12, 13, 14
PGND
Power Ground, Source of N-Channel Power MOSFET Switch. Connect pins 12, 13, and 14
together with wide traces.
15
3.3
/5
Output Voltage Selection Input. When FB is connected to GND, the regulator uses internal
feedback to set the output voltage.
3.3/
5 = low sets output to 3.3V;
3.3/
5 = high sets output to
5V. If an external divider is used at FB, connect
3.3/
5 to ground.
16
CLK
Clock Input for the DC-DC Converter. Connect to OUT for internal oscillator. Drive CLK with
an external clock for external synchronization.
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| MAX17080EVKIT+ | 功能描述:电源管理IC开发工具 MAX17080 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 |
| MAX17080GTL+ | 功能描述:开关变换器、稳压器与控制器 Integrated Circuits (ICs) Voltage Regulators - Special Purpose - IC CONTROLLER AMD SVI 40-TQFN RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MAX17080GTL+T | 功能描述:开关变换器、稳压器与控制器 Integrated Circuits (ICs) Voltage Regulators - Special Purpose - IC CONTROLLER AMD SVI 40-TQFN RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| MAX17081EVKIT+ | 功能描述:电源管理IC开发工具 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 |
| MAX17081EWV+ | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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