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

FEATURES
1 C2 l+ `, |8 ]/ i8 Z* |■ Three-channel PMU:Buck,Boost
3 J' j- _. I+ z' _and
Super
) i1 d+ z8 @( A. v% h1 m4 Pcapacitor charger
2 C% @5 B- D0 w2 \0 w( j2 E4 h■
6 y( n3 G2 X) o1 v' s( Kwide working range: 5V-40V
% d# b: Y: F4 E$ z4 l7 {■ 3.3V 450mA Output Power for Buck
■
12V 500mA Output Power for Boost at 2.7V
Input
- S. s! H+ i6 _3 @+ M' t, }■
6 D+ Q8 X/ F; D$ l7 b1% accuracy for Charger CV voltage and up
7 X' k2 j: `8 S4 sto 150mA constant charge current
■
High Efficiency PFM mode at light load for
Buck
( ?+ y' m$ u( R: u; ^7 I0 _- Q! V/ T■ Enable pin to auto-switch boost and charger
3 M6 r5 s: T9 R5 b3 e■
- j7 O+ N3 c7 J0 jAvailable in ES0P8 and QFN3x4-24 Package
$ E3 s% s9 K0 f5 y/ C% TAPPLICATIONS
7 P/ R  d: P4 g9 V■ PLC modules
■ Power Meters
■ Any system that needs super capacitor as a
backup power
DESCRIPTION
ZCC4200 is a three-channel PMU that includes a
40V input, a high efficiency synchronous buck
converter, a low startup, high efficiency 18V
. B7 O3 L: L/ O& K/ d, f0 fboost converter and a super capacitor Charger.
, J1 n+ p3 J  yThe buck converter withstands input voltage up
. N' \% M! V2 ^2 Qto 40V and delivers a 3.3V output with up to 450mA
current. The boost converter is capable of
8 u- ]4 P/ Y. ~2 G9 d% Nproviding up to 500mA to 12V output from a single
) {+ S! `2 C* Ecell 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
7 O1 X2 ~, R$ H4 a8 F& ?external resistor divider. All three power
4 \5 F; X0 g9 ]  H0 ], Q- m% b# zmodules are packed into a single ES0P8 and
- q, w4 k! w! B1 s  U& d; p0 kQFN3x4-24 package,beating the discrete
solution in features, peRFormance, size, PCB
layout and cost