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

0 I: E% S1 W% B7 K8 X# I( vFEATURES
; g3 [$ ?0 N  x/ z1 e0 A■ Three-channel PMU:Buck,Boost
: C) M, Y$ J9 H3 k' _/ ?/ w1 cand
Super
; ~9 ?( P# q- i6 |8 P" G8 scapacitor charger
■
1 A" O% i+ P2 f( j1 R8 V, a' ]0 hwide working range: 5V-40V
■ 3.3V 450mA Output Power for Buck
) U# R, P4 Y2 D0 c9 k7 k! i6 d■
12V 500mA Output Power for Boost at 2.7V
+ e* H. I) E* R, Z& M+ XInput
: S7 e* l4 f. J3 \' Z9 _■
1% accuracy for Charger CV voltage and up
to 150mA constant charge current
, c2 O% J# z4 B■
' j8 P+ u7 M2 O& RHigh Efficiency PFM mode at light load for
Buck
1 D+ C" P6 X  S1 i  S■ Enable pin to auto-switch boost and charger
■
" m. B' J( i* hAvailable in ES0P8 and QFN3x4-24 Package
APPLICATIONS
. q. L: g) ?- m■ PLC modules
■ Power Meters
: t) o# u/ H2 s' ^: G# J4 o/ _■ Any system that needs super capacitor as a
backup power
DESCRIPTION
! X. F. X" Q- vZCC4200 is a three-channel PMU that includes a
6 X" l( D1 B" |1 ^# z40V 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
to 40V and delivers a 3.3V output with up to 450mA
' h. R' v9 l3 m4 |; ~  Gcurrent. The boost converter is capable of
$ |0 d, Z3 k# ?. h1 sproviding up to 500mA to 12V output from a single
/ ^* F  X4 N7 \2 J2 e6 ccell super capacitor or a battery at 2.7V. A
linear supercapacitor charge is also integrated with a very high accuracy CV voltage.
The output voltage of boost can be adjusted by
external resistor divider. All three power
# e7 `5 [7 N( X( a3 z1 ~8 `; V3 Jmodules are packed into a single ES0P8 and
QFN3x4-24 package,beating the discrete
6 f: V: b& B+ x, G0 Q: [4 csolution in features, peRFormance, size, PCB
layout and cost
3 {1 ]$ D9 d  M' Z+ _9 M- K

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。