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Maxim > 方案 > 可充电助听器

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QV  PDF MAX8902A和MAX8902B评估板
MAX8902EVKIT
QV  PDF 集成充电器和智能电源选择器的PMIC，用于手持设备
MAX8671X

五路稳压输出和具有智能化电源管理的Li+电池充电器，允许系统在没有电池的条件下工作
QV  PDF 低噪声500mA LDO稳压器，2mm x 2mm TDFN封装
MAX8902A, MAX8902B

低噪声、低压差、高PSRR、500mA线性稳压器，采用2mm x 2mm TDFN封装
QV  PDF 16µA IQ、1.2A PWM降压型DC-DC转换器
MAX1556, MAX1556A, MAX1557

16µA静态电流、1.2A和600mA、降压型转换器，输出电流为1mA时效率高达95%
QV  PDF 低输入电压、500mA LDO稳压器，带有低电平有效的RESET输出，SOT或TDFN封装
MAX1589
QV  PDF 500mA、低压差线性稳压器，µMAX封装
MAX1792

压差仅为130mV的0.5A LDO，采用耗散功率为1.3W的µMAX封装



Key Specifications:   Battery Chargers
Part Number Cell Chemistry Number of Lithium-Ion cells Protected VIN (max) (V) Charging VIN (max) (V) Charge Rate Set by Max. Charge Current (A) Max. Charge Current (A) Charge Termination Charge Regulation Features EV-Kit Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX8671X  Li-Ion
Li-Polymer 		1 14 6.6 Logic Input
Resistor 		1 1 Min. Charge Current Linear
•Dual USB/Adapter Input
•Input Current Limit
•Internal FET/Transistor
•Smart Power Selector
•Stand Alone
•Thermal Die Regulation
•Thermistor Input
•Timer
•USB Input
 Yes TQFN/40 26 -40 to +85
See All Battery Chargers (62)

Key Specifications:   Linear Regulators
Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Preset VOUT (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output Nominal POK/Reset Threshold (V) Watchdog Reverse Battery Protection Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX8902  1 1.7 5.5 1.5
1.8
2.0
2.5
3.0
3.1
3.3 		0.6 5.3 0.05 500 120 No Vout-9% No No TDFN-EP/8 4 -40 to +125
MAX1589  1 1.62 3.6 0.75
1.0
1.3
1.5
1.8
2.5
3.0 		 -   -  0.175 500 140 No Vout-17.5% No No TDFN-EP/6
TSOT/6 		8 -40 to +85
MAX1792  1 2.5 5.5 1.5
1.8
2.5
3.3
5.0 		1.25 5 0.13 500 250 No  -  No No µMAX-EP/8 15 -40 to +85
See All Linear Regulators (145)

Key Specifications:   Multifunction PMICs
Part Number Primary Topology Monitor/Control Features DC-DC/Power Features Battery Charger Features VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) IOUT (A) IOUT (A) Operating Freq. (kHz) Package Smallest Available Package (max w/pins) (mm2)
MAX8671X  Step-Down Low Batt./POK Output Current Limit
Fixed Freq./PWM
Internal Pwr. FETs
Soft Start
Sync. Rectifier 		Battery Charger
Charge Timer
Dual USB/ Adapter Input
Input Current Limit
Smart Pwr. Selector
Thermal Die Regulation
Thermistor Input
USB Input 		2.6 6.6 0.6 5 0.5 0.5 2000 TQFN/40 26
See All Multifunction PMICs (79)

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) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Package Smallest Available Package (max w/pins) (mm2)
MAX1556  2.6 5.5 0.75 5.5 1.8
2.5
3.3 		1.2 1.2 Preset
Resistor 		0.016 1 1000 TDFN-EP/10 10
MAX1557  2.6 5.5 0.75 5.5 1.0
1.3
1.5 		0.6 0.6 Preset
Resistor 		0.016 1 1000 TDFN-EP/10 10
See All Step-Down Switching Regulators (252)
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