耐压100V同步降压最大5A输出电流 ZCC1005

四维电子

Features
7 d1 t# J  l( T% Z- ~- l/ Z& ` 9V to 100V input voltage range
 1.5A/5A continuous output current
 95% Peak Efficiency
 400μA operating quiescent current
 100V 400-mΩ high-side MOSFET
 Peak Current mode control
; ?' a4 k, B$ c* d  h% }$ M 150 kHz Fixed Frequency
 Internal compensation for ease of use
4 j# x! r, N7 Y0 V: U5 d Up to 92% duty cycle
& E- C+ [* E4 p: Z& T" _/ U 0.8V voltage reference
 1μA shutdown current
" @8 L3 |  I, A" M 3A/6A cycle-by-cycle current limit
; W! u3 x3 X, x6 |. j 150ms Hiccup mode short circuit protection
* F1 K9 y) o. e% J3 _Function
/ b' @+ j2 @7 d; S Thermal shutdown Function
 ESOP-8 package
/ O1 ~, ], z$ f* G8 YApplications
: N4 O# u: `" x4 R9 X9 X5 p+ v Charger in vehicle
: p) z/ }9 V* a7 w- |% ` Battery Chargers
 Power adapter
Typical Application
1 V' y5 b( f7 [, X3 W1 W, U0 PDescription
The ZCC1005 is a high voltage, non-synchronous
+ k5 E9 T* i2 O/ w$ g/ N' u4 Y5 hstep-down converter operates over a wide range
input voltage
, B" C0 E" O5 X7 j9V to 100V. The ZCC1005
' E* [* ?' O0 p8 {4 I- h5 x; r1 Uintegrates a 100-V 400-mΩ high-side MOSFET.
The ZCC1005 delivers 1.5A continuous load
4 a( R# E! `" N& h" {5 T0 j5 i) Ccurrent with up to 95% efficiency. The ZCC1005
operates with fixed frequency peak current control
with built-in compensation eliminates the need for
external components.
% l, R8 h% V8 ~8 O2 C  z+ R, FCycle-by-cycle current limit in high-side MOSFET
3 ^2 j' d+ w5 A3 X5 Qprotects the converter in an overload condition.
% [. o* ?& t( X. `Hiccup mode protection is triggered if the
over-current condition has persisted for longer than
the present time.
The ZCC1005 exhibits protection features that
8 P( ?* P. W& ~% K4 q( B; ~# Fprotect the load from faults like under-voltage,
over-current and over-temperature.
: S1 ?. v/ x5 }1 B! kThe 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。