CXPU33108/CXPU33108B/CXPU33108C/CXPU33108D为数码相机提供了完整的电源解决方案。与其他2芯AA、1芯锂离子和多电池设计的多通道控制器相比，它们提高了性能、组件数量和尺寸。片上mosfet为关键电源提供高达92~95%的效率。所有通道DC/DC以1.5MHz/750KHz的固定频率运行，以优化尺寸、成本和效率。所有的同步变换器在轻载时都以脉冲跳过模式工作。它们还具有真正的关机和内部补偿功能，以最小化外部组件计数。
·1.5V~5.5V输入电压操作。
·95%高效DC/DC转换器。
高度集成7通道DC/DC和集成功率mosfet。
·主通道可选降压或升压，用于2*AA或锂离子应用。内置6通道同步整流电流模式PWM/PSM转换器，1通道非同步整流电流模式PWM转换器。
·可选的升压型，带LED开路保护或电流调节型LED驱动器。
·LED驱动器的32步亮度控制
内置高压LDO和RTC LDO
·低功耗（睡眠模式）<10uA。
·4通道同步整流转换器的内置电源开/关顺序。
·内置CCD+和CCD电源的通电顺序。
内置短路保护（SCP）和欠压保护（UVP）。
·DC/DC转换器的逐周电流限制
内置热关机功能。
[ CXPU33108/B/C/D ]
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产品概述 返回TOP
产品特点 返回TOP
„ 1.5V ~ 5.5V Input Voltage Operation.
„ 95% Efficient DC/DC Converter.
„ Highly Integrated 7-CH DC/DC with integrated Power MOSFETs.
„ Main Channel Selectable Buck or Boost for 2*AA or Li-Ion Application. „ Built-in 6 Channel Synchronous Rectified Current-Mode PWM/PSM Converter, 1 Channel Non-Synchronous Rectified Current-Mode PWM Converter.
„ Selectable Boost Type with LED open protection or Current Regulation Type LED Driver.
„ 32-steps brightness control for LED Driver
„ Built-in HV LDO and RTC LDO
„ Low Power Consumption ( Sleep Mode ) < 10uA.
„ Built-In Power ON/OFF Sequence for 4 Channel Synchronous Rectified Converter.
„ Built-In Power ON Sequence for CCD+,CCDpower.
„ Built-In Short Circuit Protection (SCP) & Under Voltage Protection (UVP) .
„ Cycle-by-Cycle current limit for DC/DC Converter
„ Built-In Thermal Shutdown Function.
„ Built-In Battery OVP Function.
„ Built-In Soft-Start Function.
„ Built-In True Shutdown in Boost Converter.
„ Fixed 1.5MHz/750KHz Operating Frequency.
„ TQFN4x4-32 Package.
应用范围 返回TOP
DSC Power Supply
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
a
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Multi-Channel PMIC |
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Part NO. |
Vin(V min. |
Vin(V) max. |
DCDC CH |
DCD CFSW MHz |
Charger A |
LDO CH |
RTC LDOCH |
Note |
Package |
|
2.5 |
5.5 |
6 |
1.5 |
-- |
5 |
-- |
Bay Trail-M,DCDC1 2A, DCDC2~62.5A, LDO1~5 300mA,Load Switch*4 |
TQFN5X5-40 |
|
|
3 |
5.5 |
2 |
1.5 |
-- |
2 |
-- |
DCDC1~2 0.6A/1A LDO1=3V/3.3V/250mA, LDO2=1.2V/250mA |
TQFN3X3-16 |
|
|
2.5 |
5.5 |
4 |
1.5 |
1.5 |
6 |
1 |
DCDC1~4 1.5A/1.5A/2A/1.5A,Power Path, RTCLDO&LDO1=50mA,LDO2~6=300mA |
TQFN6X6-48 |
|
|
Multi-Channel PMIC for DSC |
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|
Part NO. |
Vin(V) min. |
Vin(V) max. |
FOSC (kHz) |
Built-in Compen sation CH |
Built-in HV LDO |
InternalPower ON/OFF Sequence |
Note |
Package |
|
3 |
5.5 |
1000 |
4+1 |
N |
Y |
Selectable Sync-Boost/buck,Sync-Buck*2, Sync-Boost,1-CH LDO,RTC LDO,RESET |
TQFN4X4-28 |
|
|
2.7 |
5.5 |
2000/ 1000 |
7 |
N |
Y |
Sync-Boost,Sync-Buck*2, Inverter,RTC LDO,Sync -Boost,Selectable Sync-Boost/Buck,Sync-Boost and Current Regulator for WLED |
TQFN4X4-32 |
|
|
1.5 |
5.5 |
1500 /750 |
7+1 |
Y |
Y |
Sync-Boost,Sync-Buck*2, Inverter,RTC LDO, Sync-Boost,Selectable Sync-Boost/Buck,HV LDO, Sync-Boost and Current Regulator for WLED |
TQFN4X4-32 |
|
|
1.5 |
5.5 |
1500 /750 |
7+1 |
Y |
Y |
Sync-Boost,Sync-Buck*2, Inverter,RTC LDO, Sync-Boost,Selectable Sync-Boost/Buck,HV LDO,Sync-Boost and Current Regulator for WLED |
TQFN4X4-32 |
|
|
1.5 |
5.5 |
1500 /750 |
7+6 |
Y |
Y |
Sync-Boost,Sync-Buck*2,Inverter,Sync-Boost, Selectable Sync-Boost/Buck,Sync-Boost and Current Regulator for WLED, RTC LDO,HV LDO, 4-CH LV LDO, I2C |
TQFN5X5-40 |
|
|
2.5 |
5.5 |
1500 /750 |
6+3 |
N |
Y |
Sync-Boost,Sync-Buck*3,Auto Buck/Boost, Sync-Boost for WLED,LV LDO*2,RTC LDO,JEITA, I2C Charger with Dynamic path,USB charger with Auto Power Source Detection |
TQFN5X5-40 |
|
|
2.5 |
5.5 |
1500 /750 |
6+6 |
N |
Y |
Sync-Boost,Sync-Buck*3,Auto Buck/Boost,Sync- Boost for WLED,LV LDO*4, RTC LDO,Power SwitchI2C |
TQFN5X5-40 |
|
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