ZCC4200三通道PMU 带线性充电器的Buck和Boost变换器

四维电子

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( f# ]& {6 i' j: n: Q$ S6 YFEATURES
■ Three-channel PMU:Buck,Boost
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Super
capacitor charger
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wide working range: 5V-40V
■ 3.3V 450mA Output Power for Buck
■
; t* y, J3 a# j- A12V 500mA Output Power for Boost at 2.7V
Input
■
1% accuracy for Charger CV voltage and up
to 150mA constant charge current
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High Efficiency PFM mode at light load for
Buck
■ Enable pin to auto-switch boost and charger
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Available in ES0P8 and QFN3x4-24 Package
. f, d0 g* I1 a& m" @APPLICATIONS
2 g$ j* k" {- k. x. l( I# a■ PLC modules
■ Power Meters
■ Any system that needs super capacitor as a
( u2 i; N! ]! ~: N% Tbackup power
4 y+ A* d2 R, J& v2 PDESCRIPTION
; v% v" T+ u/ n% _ZCC4200 is a three-channel PMU that includes a
40V input, a high efficiency synchronous buck
converter, a low startup, high efficiency 18V
boost converter and a super capacitor Charger.
The buck converter withstands input voltage up
9 Q1 F1 ]) Q' W4 [to 40V and delivers a 3.3V output with up to 450mA
! ^- N, W9 U& a/ d5 m9 Ucurrent. The boost converter is capable of
0 J! f8 X0 ]; H7 r) E+ m  u! ~2 ?providing up to 500mA to 12V output from a single
/ F7 o, l/ ]& ^9 g6 {9 t2 icell super capacitor or a battery at 2.7V. A
" t0 v6 ]6 V/ x1 L3 h+ xlinear supercapacitor charge is also integrated with a very high accuracy CV voltage.
The output voltage of boost can be adjusted by
- {$ d$ h! s# m8 J' ~+ N! gexternal resistor divider. All three power
* G: ~6 i% \! p' L5 k7 ]# x$ E/ @) smodules are packed into a single ES0P8 and
+ L/ d; v0 J/ M3 JQFN3x4-24 package,beating the discrete
6 @+ d* s7 P1 \3 J% isolution in features, peRFormance, size, PCB
( r# o- T' ~- R3 ~. {layout and cost
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ZCC4200是一个三通道PMU，包括40V输入，高效同步降压转换器，低启动，高效率18V升压转换器和超级电容器充电器。