ZCC5160-同步降压芯片60V /3A V2.0(1)

四维电子

Features
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20-μA Quiescent current in regulation
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Input voltage range: 4V-60V
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Output voltage range: 1V-VIN
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Integrated upper and lower power MOSFET
/ V5 B' A  U) ]( vmaximum current: 5A
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Adjustable frequency range: 200KHz~2MHz
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Automatic switching of CCM/DCM/PFM mode
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Adjustable soft-start time and Output voltage
. }. r' w9 W( v, D+ ptracking capability
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Automatically switched bypass linear power
# Y6 C; w+ ]; g+ S9 c3 S( Ssupply
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Provides ultra-low input and output dropout
: }6 H( L5 S  u9 u1 D: lvoltage close to 100% duty cycle
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Internal Compensation
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6 h2 ~/ r# Q, X: R0 T# @( OPower-good flag
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7 ^% P6 E! a) A  Q/ b8 f( T( TDynamic Frequency Stretch Technology
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! a* Q% \- t) z, i# q/ ZSupport large capacitive load start-up
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0 c; y% n, l5 [* kProtection function: UVLO/OCP/SCP/OTP/OVP
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$ z( v0 o- V1 X- P5 ~0 q! p* p- h" mOperating junction temperature range: -40℃ to
4 L0 h- V) D$ _1 I% J6 r7 X+ d+125℃
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! r8 T: Z, _0 p8 j. PAll pins have ±2000V (HBM) ESD protection
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ETSSOP 16-Pin Exposed Pad Package
  X# E8 c$ Y3 o6 D8 J& @& zApplications
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Industrial power supply
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* t" D4 i3 P& w2 u* U' OWide voltage input range power supply
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Low ripple low noise power supply
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2 p9 X% _. H6 _. t3 r9 J- ~6 hAutomotive electronic power supply
4 O6 `7 @- @) A/ Y7 k8 mDescription
ZCC5160 is a step-down DC/DC regulator with an
internal switch, featuring SKIP control mode, which
0 q7 R& o( T/ t$ K& f/ z: Icombines low quiescent current with high switching
frequency to achieve high-efficiency regulation over a
wide range of load currents. SKIP mode uses a short
"burst" cycle to switch the inductor current through
) P6 W( c5 ]4 \the internal power MOSFET, followed by a sleep
8 I: H" K8 |6 r+ I# j& C1 e. t# Ccycle in which the power switch is turned off and the
load current is provided by the output capacitor. At
8 W2 _$ G: u7 ^2 ?$ L. ~8 A. B9 e' O$ dlight loads, burst cycles are a small fraction of the
total cycle time, minimizing average supply current
and greatly improving efficiency at light loads.
ZCC5160 has a wide input voltage range of 4V-60V,
thus minimizing the need for external surge
, P6 r( W. i* H& Jsuppression components. Making it the best choice
" O1 r+ ~  P& u: d1 W7 cfor wide input power range industrial and high cell
count battery pack applications. ZCC5160 is ideal for
$ g! D, v3 S6 h3 A" X. n) L4 Ruse in the 48V automotive power bus range.
ZCC5160 features low-value 100mΩ high-side and
& A; m6 o, p6 O( ~' {  _; E5 ~/ e/ j; V80mΩ low-side MOSFET that provide at least 3A
output current capability with excellent load and line
transient response.
Additional features include: soft-start, thermal
4 n: g7 z  a( ]( yshutdown, UVLO undervoltage lockout, gate driver
- e/ ^9 Q- w2 o3 L8 j- Jundervoltage lockout, maximum duty cycle limit timer,
and current limit shutdown timer. It also integrates
! k7 W4 C% g9 c/ T8 V$ L3 A) x8 Toutput short-circuit protection, providing HICCUP
mode when the FB voltage is low to avoid
overheating during short-circuit.
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