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Maxim > 方案 > 可充电助听器

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显示 标题/型号 关键优势
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 Lithium Ion Cells Protected VIN
(V)
Charging VIN
(V)
Charge Rate Set by Max. ICHG
(A)
Charge Termination Charge Regulation Features EV Kit Oper. Temp.
(°C)
Package/Pins Smallest Available Pckg.
(mm2)
max max max w/pins
MAX8671X 
Li-Ion
Li-Polymer
1 14 6.6
Logic Input
Resistor
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 -40 to +85
TQFN/40
26
See All Battery Chargers (60)

Key Specifications:  Linear Regulators
Part Number Regulators VIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
ICC
(µA)
Low Batt./ Pwr. Fail Out POK/Reset Thresh.
(V)
Watchdog Reverse Batt. Protect. Oper. Temp.
(°C)
Package/Pins Smallest Available Pckg.
(mm2)
min max min max typ max nom max w/pins
MAX8902  1 1.7 5.5
1.5
1.8
2
2.5
3
3.1
3.3
0.6 5.3 0.05 500 120 No Vout-9% No No -40 to +125
TDFN-EP/8
4.2
MAX1792  2.5
1.5
1.8
2.5
3.3
5
1.25 5 0.13 250 - -40 to +85
µMAX-EP/8
15.3
See All Linear Regulators (152)

Key Specifications:  Multifunction PMICs
Part Number Primary Topology Monitor/Control Features DC-DC/Power Features Battery Charger Features VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Oper. Freq.
(kHz)
Package/Pins Smallest Available Pckg.
(mm2)
min max min max max w/pins
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 (83)

Key Specifications:  Step-Down Switching Regulators
Part Number VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Preset VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Output Adjust. Method DC-DC Outputs Oper. Freq.
(kHz)
Package/Pins Smallest Available Pckg.
(mm2)
min max min max max w/pins
MAX1556  2.6 5.5 0.75 5.5
1.8
2.5
3.3
1.2 1.2
Preset
Resistor
1 1000
TDFN-EP/10
9.6
MAX1557 
1
1.3
1.5
0.6 0.6
TDFN-EP/10
See All Step-Down Switching Regulators (264)



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