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参数资料
| 型号： | MAX1778EUG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/39页 |
| 文件大小： | 0K |
| 描述： | IC DCDC CONV MULTI OUT 24TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，TFT，LCD |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 5 |
| 输出电压： | 2.7 V ~ 13 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
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MAX1778/MAX1880–MAX1885
Quad-Output TFT LCD DC-DC
Converters with Buffer
Pin Description
PIN
MAX1778
MAX1881
MAX1880
MAX1882
MAX1883
MAX1884
MAX1885
NAME
FUNCTION
Main Step-Up Regulator Feedback Input. Regulates to 1.25V
1
1
1
1
FB
nominal. Connect a resistive divider from the output (V MAIN ) to FB
to analog ground (GND).
Main Step-Up Integrator Output. When using the integrator,
2
2
2
2
INTG
connect 1000pF to analog ground (GND). To disable the
integrator, connect INTG to REF.
Main Supply Voltage. The supply voltage powers the control
3
3
3
3
IN
circuitry for all the regulators and can range from 2.7V to 5.5V.
Bypass with a 0.1μF capacitor between IN and GND, as close to
the pins as possible.
VCOM Buffer (Operational Transconductance Amplifier) Positive
4
4
4
4
BUF+
Feedback Input. Connect to GND to select the internal resistive
divider that sets the positive input to half the amplifier’s supply
voltage (V BUF+ = V SUPB /2).
5
6
7
8
5
6
7
8
5
6
7
8
5
6
7
8
BUF-
SUPB
BUFOUT
GND
VCOM Buffer (Operational Transconductance Amplifier) Negative
Feedback Input
VCOM Buffer (Operational Transconductance Amplifier) Supply
Voltage
VCOM Buffer (Operational Transconductance Amplifier) Output
Analog Ground. Connect to power ground (PGND) underneath the
IC.
Internal Reference Bypass Terminal. Connect a 0.22μF ceramic
9
9
9
9
REF
capacitor from REF to analog ground (GND). External load
capability up to 50μA.
Positive Charge-Pump Regulator Feedback Input. Regulates to
10
10
—
—
FBP
1.25V nominal. Connect a resistive divider from the positive
charge-pump output (V POS ) to FBP to analog ground (GND).
Negative Charge-Pump Regulator Feedback Input. Regulates to
11
11
—
—
FBN
0V nominal. Connect a resistive divider from the negative charge-
pump output (V NEG ) to FBN to the reference (REF).
Active-Low Shutdown Control Input. Pull SHDN low to force the
12
12
10
10
SHDN
controller into shutdown. If unused, connect SHDN to IN for normal
operation. A rising edge on SHDN clears the fault latch.
Low-Dropout Linear Regulator Input Voltage. Can range from 4.5V
13
—
11
—
SUPL
to 15V. Bypass with a 1μF capacitor to GND (see Capacitor
Selection and Regulator Stability ). Connect both input pins
together externally.
Maxim Integrated
17
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1778EVKIT | 功能描述:电源管理IC开发工具 MAX1778/80/81/82 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 |
| MAX1779EUE | 功能描述:直流/直流开关转换器 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 |
| MAX1779EUE+ | 功能描述:直流/直流开关转换器 Triple-Output TFT LCD 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 |
| MAX1779EUE+T | 功能描述:直流/直流开关转换器 Triple-Output TFT LCD 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 |
| MAX1779EUE-T | 功能描述:直流/直流开关转换器 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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