耐压100V同步降压最大5A输出电流 ZCC1005

四维电子

# J" s& P4 k# r  |" r1 H
' k9 S6 p% f( g4 cFeatures
 9V to 100V input voltage range
 1.5A/5A continuous output current
 95% Peak Efficiency
 400μA operating quiescent current
0 |: W" g2 P9 f  R. E/ S 100V 400-mΩ high-side MOSFET
. J8 D4 q9 g, q7 X Peak Current mode control
' {0 y: t+ t4 ?/ n9 z: M2 r0 z9 l1 W 150 kHz Fixed Frequency
 Internal compensation for ease of use
% j; f% c! Q4 ?$ E8 K' H Up to 92% duty cycle
 0.8V voltage reference
- ^2 V6 b  e& L' w+ ? 1μA shutdown current
5 Q. E. L& D( _+ m7 Q 3A/6A cycle-by-cycle current limit
5 V& V7 i3 I! M. |. ` 150ms Hiccup mode short circuit protection
Function
1 b9 R+ K0 L) c  @& ^: V Thermal shutdown Function
$ F! V1 o. B- m+ \4 v ESOP-8 package
% w3 K5 k& }, B; _" n" F7 WApplications
% C, |& Q( y/ d/ d Charger in vehicle
0 l) `5 U( m1 Q3 o+ G Battery Chargers
 Power adapter
Typical Application
Description
The ZCC1005 is a high voltage, non-synchronous
step-down converter operates over a wide range
input voltage
9V to 100V. The ZCC1005
9 }0 l5 G( ^( ]" \! s9 Yintegrates a 100-V 400-mΩ high-side MOSFET.
8 l  W( M/ H+ f3 T, t; P- p  NThe ZCC1005 delivers 1.5A continuous load
current with up to 95% efficiency. The ZCC1005
2 r0 {5 |* v  L( Coperates with fixed frequency peak current control
with built-in compensation eliminates the need for
external components.
0 N* O3 h1 M: _Cycle-by-cycle current limit in high-side MOSFET
! _. z$ }4 I" c! G( H: `protects the converter in an overload condition.
Hiccup mode protection is triggered if the
7 c% ^1 _: f* Z8 R7 {over-current condition has persisted for longer than
the present time.
  |% g  U0 c# r$ h6 N$ K) g+ @  OThe ZCC1005 exhibits protection features that
protect the load from faults like under-voltage,
over-current and over-temperature.
The ZCC1005 is available in an ESOP-8 package

niubility

同步降压 优点：效率高：mos管的内阻非常小，导通压降远比肖特基二极管的正向大同压降小很多。