ZCC4200三通道PMU 带线性充电器的Buck和Boost变换器替代ETA9073

四维电子

9 R# q8 n& S! D- bFEATURES
7 ^% b! J) C% X4 L7 r8 O0 E- x■ Three-channel PMU:Buck,Boost
and
Super
/ v# z# E% G" Fcapacitor charger
: \9 y( {# g: j1 Y1 _■
wide working range: 5V-40V
■ 3.3V 450mA Output Power for Buck
) T5 j3 I1 U1 U# N/ S' e- k■
12V 500mA Output Power for Boost at 2.7V
# w- D: \) k! |Input
■
% O5 U) B; t8 z$ O. [& n1% accuracy for Charger CV voltage and up
  Y3 Q! F  n, @3 }- X4 f: Wto 150mA constant charge current
■
High Efficiency PFM mode at light load for
Buck
■ Enable pin to auto-switch boost and charger
% M+ D& Q% K2 L' z■
Available in ES0P8 and QFN3x4-24 Package
APPLICATIONS
■ PLC modules
* v1 o$ t: T! s7 ^■ Power Meters
■ Any system that needs super capacitor as a
backup power
DESCRIPTION
9 U* J5 ~3 ?# A* H9 `9 UZCC4200 is a three-channel PMU that includes a
40V input, a high efficiency synchronous buck
- z) `, g  k; G. _- I: z8 c8 oconverter, a low startup, high efficiency 18V
boost converter and a super capacitor Charger.
8 l: M4 i: J  G+ @7 b; ZThe buck converter withstands input voltage up
to 40V and delivers a 3.3V output with up to 450mA
, w: |) ?2 b# rcurrent. The boost converter is capable of
' t1 P+ x  z1 r" J: Iproviding up to 500mA to 12V output from a single
cell super capacitor or a battery at 2.7V. A
* r; U7 k# S. v, }linear supercapacitor charge is also integrated with a very high accuracy CV voltage.
The output voltage of boost can be adjusted by
( ]) P8 X( z* u7 j9 Y+ l3 _& Sexternal resistor divider. All three power
' |2 L1 F4 g4 L, h* Kmodules are packed into a single ES0P8 and
; c5 B3 b+ y% s5 tQFN3x4-24 package,beating the discrete
& [# @* I& V0 T" x7 Qsolution in features, peRFormance, size, PCB
layout and cost
6 x- a" R* ^9 J3 j) e- ~+ e. r

unfaithful2021

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。