ZCC5160 同步降压 60V 3A V2.0

四维电子

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1 i* \. A' M& u1 cFeatures
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20-μA Quiescent current in regulation
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Input voltage range: 4V-60V
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7 c2 t, s/ a( wOutput voltage range: 1V-VIN
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$ o8 @5 Q- a7 x% H4 bIntegrated upper and lower power MOSFET
maximum current: 5A
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& C$ X# |6 h* y% b0 @& f7 Q% GAdjustable frequency range: 200KHz~2MHz
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3 D) P) n5 `% u/ U& y2 GAutomatic switching of CCM/DCM/PFM mode
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Adjustable soft-start time and Output voltage
tracking capability
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Automatically switched bypass linear power
supply
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Provides ultra-low input and output dropout
! m, u- S2 \  p, e& @( s5 Uvoltage close to 100% duty cycle
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Internal Compensation
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6 \/ B( h3 {* h+ W5 fPower-good flag
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7 k( t; ?5 w9 C. U" [Dynamic Frequency Stretch Technology
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% o+ j' z! Q0 p  l; vSupport large capacitive load start-up
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Protection function: UVLO/OCP/SCP/OTP/OVP
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4 d0 R7 M0 t5 @2 M* Z+ yOperating junction temperature range: -40℃ to
+125℃
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9 t+ [% S8 H  _1 W. H: d7 \All pins have ±2000V (HBM) ESD protection
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2 i7 z1 s- g; v- `& [& AETSSOP 16-Pin Exposed Pad Package
* Q; ^7 F7 I% f/ b  y6 Z, R1 p" WApplications
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3 _' @# d+ x+ J( F- m2 _Industrial power supply
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9 V: \' a( x! F! xWide voltage input range power supply
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& O! P7 ?! F! E0 R, F- LLow ripple low noise power supply
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Automotive electronic power supply
2 x+ O% N% V* lFigure. 1 Typical Application Circuit
Description
( t4 Y9 n. t3 M+ `4 {0 ~3 V9 YZCC5160 is a step-down DC/DC regulator with an
! }" N4 ^6 ~4 s) Uinternal switch, featuring SKIP control mode, which
/ j1 _* d: s+ h1 Y& z7 icombines low quiescent current with high switching
frequency to achieve high-efficiency regulation over a
2 @2 L9 \  \5 f& H0 ^7 mwide range of load currents. SKIP mode uses a short
"burst" cycle to switch the inductor current through
the internal power MOSFET, followed by a sleep
9 t2 V$ w: ~2 h/ Hcycle in which the power switch is turned off and the
load current is provided by the output capacitor. At
light loads, burst cycles are a small fraction of the
- ~. K0 g5 i% T) Vtotal cycle time, minimizing average supply current
and greatly improving efficiency at light loads.
- J: s% T  E7 i# qZCC5160 has a wide input voltage range of 4V-60V,
thus minimizing the need for external surge
suppression components. Making it the best choice
for wide input power range industrial and high cell
count battery pack applications. ZCC5160 is ideal for
# J' [5 c1 Y' X6 n. g' k: v" ^use in the 48V automotive power bus range.
ZCC5160 features low-value 100mΩ high-side and
80mΩ low-side MOSFET that provide at least 3A
output current capability with excellent load and line
transient response.
" o1 s: @; b# ~& _Additional features include: soft-start, thermal
shutdown, UVLO undervoltage lockout, gate driver
undervoltage lockout, maximum duty cycle limit timer,
and current limit shutdown timer. It also integrates
output short-circuit protection, providing HICCUP
mode when the FB voltage is low to avoid
/ ]' D* D: B, s9 \& t8 Y$ Noverheating during short-circuit.

dragongfly

多多分享实际的例子、有实际用处的。