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Maxim > 方案 > 显示器：LCD

LCD偏置 - 降压型变换器

数据资料
显示 标题/型号 关键优势
QV  PDF MAX5432和MAX5433评估板
MAX5432EVKIT
QV  PDF 微型500mA、4MHz/2MHz同步降压型DC-DC转换器
MAX8640Y, MAX8640Z

最可靠的4MHz/2MHz、升压型DC-DC转换器，能够以93%的效率提供500mA的电流，采用微型2mm x 2.1mm SC70封装，是业内尺寸最小的解决方案
QV  PDF 2.5MHz/1.5MHz降压型转换器，具有60mΩ旁路开关，采用TDFN封装，用于CDMA PA供电
MAX8581, MAX8582

超小尺寸的1.5MHz、降压型DC-DC转换器，能够以94%的效率提供600mA电流，采用小尺寸TDFN封装
QV  PDF 32抽头、非易失、I²C、线性数字电位器
MAX5432, MAX5433, MAX5434, MAX5435

32抽头、非易失、I²C、线性调节数字电位器，具有机械电位器的功能，但用简单的2线串口替代机械调节
QV  PDF 4MHz、500mA同步降压型DC-DC转换器，薄型SOT和TDFN封装
MAX8560, MAX8561, MAX8562

首款4MHz、降压型DC-DC转换器，能够以90%的效率提供500mA电流，采用SOT23和TDFN封装
QV  PDF 低成本、内置开关、降压型调节器, 用于LCD显示器
MAX8723

低成本、高效降压转换器
QV  PDF 低输出电压、800mA、PWM降压型DC-DC转换器
MAX1927, MAX1928
QV  PDF 低电压、400mA、降压型DC-DC转换器，SOT23封装
MAX1920, MAX1921



Key Specifications:   Digital Potentiometers
Part Number Taper POTs Per Pkg. Control Interface Wiper Memory Number of Steps End-to-End Resistance (kΩ) Res. Tol. (%) Temp. Coeff. (typ)(ppm/°C) Wiper Resistance (typ) (Ω) Max. Idle State Supply Current @5V (µA) Features Supply Voltage (V) Package Operating Temp. Range (°C)
MAX5432  Linear 1 2-Wire Serial Non-Volatile 32 50 25 35 610 2
•EEPROM Wiper Memory
 2.7 to 5.25 THIN QFN (Dual)/8 -40 to +85
MAX5433  Linear 1 2-Wire Serial Non-Volatile 32 100 25 35 610 2
•EEPROM Wiper Memory
 2.7 to 5.25 THIN QFN (Dual)/8 -40 to +85
MAX5434  Linear 1 2-Wire Serial Non-Volatile 32 50 25 35 610 2
•EEPROM Wiper Memory
 2.7 to 5.25 SOT-23/6 -40 to +85
MAX5435  Linear 1 2-Wire Serial Non-Volatile 32 100 25 35 610 2
•EEPROM Wiper Memory
 2.7 to 5.25 SOT-23/6 -40 to +85
See All Digital Potentiometers (121)

Key Specifications:   Step-Down Switching Regulators
Part Number VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) Preset VOUT (V) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Features EV-Kit Package Operating Temp. Range (°C)
MAX8581  2.7 5.5 0 5  -  0.6 Dyn. REF In
Resistor 		4 1 2500
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
•Voltage or PWM Controllable Output
 Yes THIN QFN (Dual)/10 -40 to +85
MAX8582  2.7 5.5 0 5  -  0.6 Dyn. REF In
Resistor 		4 1 1500
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
•Voltage or PWM Controllable Output
 Yes THIN QFN (Dual)/10 -40 to +85
MAX8640Y  2.7 5.5 1 2.5 1.1
1.2
1.3
1.5
1.8
2.5 		0.5 Preset
Resistor 		0.048 1 2000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes MicroDFN/6
SC-70/6 		-40 to +85
MAX8640Z  2.7 5.5 1.1 1.8 1.1
1.2
1.3
1.5
1.8 		0.5 Preset
Resistor 		0.048 1 4000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes MicroDFN/6
SC-70/6
SC70/6 		-40 to +85
MAX8560  2.7 5.5 0.6 2.5  -  0.5 Resistor 0.08 1 4000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 No SOT-23/5 -40 to +85
MAX8561  2.7 5.5 0.6 2.5  -  0.5 Resistor 0.08 1 4000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes THIN QFN (Dual)/8 -40 to +85
MAX8562  2.7 5.5 0.6 2.5  -  0.5 Resistor 0.08 1 4000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes THIN QFN (Dual)/8 -40 to +85
MAX1927  2.6 5.5 0.75 5  -  1 Resistor 0.24 1 1000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Low Battery/ Power OK Output
•Reset Output
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes uMAX/10 -40 to +85
MAX1928  2.6 5.5 1.5 2.5 1.5
1.8
2.5 		1 Preset 0.24 1 1000
•Adjustable Frequency
•Current Limit
•Fixed Frequency/ PWM Operation
•Internal Power Switches
•Low Battery/ Power OK Output
•Reset Output
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes uMAX/10 -40 to +85
MAX1920  2 5.5 1.25 4  -  0.4 Resistor 0.07 1 1200
•Adjustable Frequency
•Current Limit
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes SOT-23/6
THIN QFN (Dual)/6 		-40 to +85
MAX1921  2 5.5 1.5 3.3 1.5
1.8
2.5
3.3 		0.4 Preset
Resistor 		0.07 1 1200
•Adjustable Frequency
•Current Limit
•Internal Power Switches
•Shutdown
•Soft Start
•Synchronous Rectifier
 Yes SOT-23/6 -40 to +85
See All Step-Down Switching Regulators (223)

Key Specifications:   Switch-Mode DC-DC Power Supplies
Part Number Topology VIN (min) (V) VIN (max) (V) Number of DC-DC Outputs Preset VOUT (V) Digital/VID Programmed Output Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) IOUT (A) Operating Current, ICC (max) (mA) Operating Freq. (kHz) Internal Power Switch(es) Package
MAX8581  Step-Down 2.7 5.5 1  -  No 0 5 0.6 4 2500 Yes THIN QFN (Dual)/10
MAX8582  Step-Down 2.7 5.5 1  -  No 0 5 0.6 4 1500 Yes THIN QFN (Dual)/10
MAX8640Y  Step-Down 2.7 5.5 1 1.1
1.2
1.3
1.5
1.8
2.5 		No  -   -  0.5 0.048 2000 Yes MicroDFN/6
SC-70/6
MAX8640Z  Step-Down 2.7 5.5 1 1.1
1.2
1.3
1.5
1.8 		No  -   -  0.5 0.048 4000 Yes MicroDFN/6
SC-70/6
SC70/6
MAX8560  Step-Down 2.7 5.5 1  -  No 0.6 2.5 0.5 0.08 4000 Yes SOT-23/5
MAX8561  Step-Down 2.7 5.5 1  -  No 0.6 2.5 0.5 0.08 4000 Yes THIN QFN (Dual)/8
MAX8562  Step-Down 2.7 5.5 1  -  No 0.6 2.5 0.5 0.08 4000 Yes THIN QFN (Dual)/8
MAX1927  Step-Down 2.6 5.5 1  -  No 0.75 5 1 0.24 1000 Yes uMAX/10
MAX1928  Step-Down 2.6 5.5 1 1.5
1.8
2.5 		No  -   -  1 0.24 1000 Yes uMAX/10
MAX1920  Step-Down 2 5.5 1  -  No 1.25 4 0.4 0.07 1200 Yes SOT-23/6
THIN QFN (Dual)/6
MAX1921  Step-Down 2 5.5 1 1.5
1.8
2.5
3.3 		No  -   -  0.4 0.07 1200 Yes SOT-23/6
See All Switch-Mode DC-DC Power Supplies (429)


         


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