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MAX1565
小型、高效率、5路输出数码相机电源
小尺寸、高效、五路输出、数码相机供电电源，集成了超高效升/降压DC-DC转换器，带有三路附加的升压控制器
概述
完整的数据资料
(PDF, 520kB) 英文
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MAX1565通过集成超高效升/降压DC-DC转换器以及三个辅助的升压控制器为数码相机和数码摄像机提供完备的电源解决方案。MAX1565适用于2节、3节碱性或NiMH电池以及1节电锂离子(Li+)电池供电的系统。
关键特性
应用/使用
升压型DC-DC转换器
95%效率
3.3V固定或2.7V至5.5V可调输出
降压型DC-DC转换器
95%电池buck效率
配合升压转换器获得90% buck-boost效率
可调输出电压低至1.25V
三个辅助的PWM控制器
最高1MHz工作频率
1µA关断模式
内部软启动控制
过载保护
紧凑的32引脚、5mm x 5mm薄型QFN封装
Key Specifications:
Multifunction PMICs
Part Number
PMIC for:
Primary Topology
Monitor/Control Features
DC-DC/Power Features
LCD/LED/Flash/CCD Features
VIN (min) (V)
VIN (max) (V)
Min. VOUT (V)
Max. VOUT (V)
IOUT (A)
Operating Freq. (kHz)
Number of Step-Down Outputs
Number of Step-Up Outputs
Output Adj. Method
Preset VOUT (V)
Operating Current, ICC (max) (mA)
EV-Kit
Package
RoHS Available
Operating Temp. Range (°C)
Price**
MAX1565
Digital Camera
Step-Down
Low Battery/ Power OK Output
Adjustable Frequency
TFT Bias
0.7
5.5
1.25
5
0.8
1000
1
4
Preset
1.5
0.3
Yes
THIN QFN/32
Yes
-40 to +85
$2.60 @ 1k
See All Multifunction PMICs (71)
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
Price**
MAX1565
Step-Down
0.7
5.5
5
1.5
No
1.25
5
0.8
0.3
1000
Yes
THIN QFN/32
$2.60 @ 1k
See All Switch-Mode DC-DC Power Supplies (429)
Notes:
** This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
图表
典型工作电路
参考文献： 19-2712;
Rev. 0;
2003-02-14
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