ZCC5160 同步降压 60V 3A V2.0

四维电子

Features
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* |4 I6 }1 e  o9 g: R20-μA Quiescent current in regulation
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3 s; m0 n: o# A5 _- U/ P8 SInput voltage range: 4V-60V
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$ h6 J- {9 _3 S* v; g* hOutput voltage range: 1V-VIN
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Integrated upper and lower power MOSFET
maximum current: 5A
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6 |3 T+ d, i4 @: _5 CAdjustable frequency range: 200KHz~2MHz
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7 z1 M' o1 u/ @$ L& T% LAutomatic 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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, H2 y; v9 b, ?. u& a9 d( ]% t6 oProvides ultra-low input and output dropout
voltage close to 100% duty cycle
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5 T! ^$ O; T4 M! g/ \Internal Compensation
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Power-good flag
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Dynamic Frequency Stretch Technology
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* |5 i  c% c8 @, p6 \" SSupport large capacitive load start-up
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Protection function: UVLO/OCP/SCP/OTP/OVP
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Operating junction temperature range: -40℃ to
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All pins have ±2000V (HBM) ESD protection
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ETSSOP 16-Pin Exposed Pad Package
2 c; q/ b8 X2 f$ g/ b* D4 KApplications
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Industrial power supply
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/ f; Z7 h0 \; F- z! {Wide voltage input range power supply
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Low ripple low noise power supply
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; W6 n4 `; ~' r4 ~Automotive electronic power supply
% p5 g4 }! H0 LFigure. 1 Typical Application Circuit
. R2 U; }8 x+ Y; N: h% d( wDescription
: X6 M# }; H. W4 `6 x3 R; L2 `' |9 Z7 ^6 wZCC5160 is a step-down DC/DC regulator with an
0 {! W& Q% g/ W+ L/ cinternal switch, featuring SKIP control mode, which
combines low quiescent current with high switching
( D: z1 w5 T3 J; t( Nfrequency to achieve high-efficiency regulation over a
& l  x9 U5 [5 C3 s- ~7 E# Vwide range of load currents. SKIP mode uses a short
) N& s. H  g- `- u  P! G  P"burst" cycle to switch the inductor current through
" N9 U! Y* z9 tthe internal power MOSFET, followed by a sleep
6 G+ H" a! v5 v# |( B+ e! Pcycle in which the power switch is turned off and the
load current is provided by the output capacitor. At
. d# V2 i' K/ e8 o- qlight loads, burst cycles are a small fraction of the
total cycle time, minimizing average supply current
and greatly improving efficiency at light loads.
4 p7 U3 A! G* {+ P- O/ mZCC5160 has a wide input voltage range of 4V-60V,
* D. \3 a8 G4 w$ C$ @2 lthus minimizing the need for external surge
. P9 p: b% y( H; b- o9 ]& Y0 P0 ]suppression components. Making it the best choice
for wide input power range industrial and high cell
count battery pack applications. ZCC5160 is ideal for
use in the 48V automotive power bus range.
+ A! ^# [2 Z5 E9 Z2 iZCC5160 features low-value 100mΩ high-side and
  x1 }* p6 Z! W( P6 M& d80mΩ low-side MOSFET that provide at least 3A
output current capability with excellent load and line
) M. @6 E4 c2 V. }* o# Ltransient response.
1 p2 C  a& B) s5 @; SAdditional features include: soft-start, thermal
$ t4 w, V- g8 o  Z' P% Nshutdown, 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
3 E- E0 L9 X% y2 V% bmode when the FB voltage is low to avoid
1 r9 R$ j, h7 r4 S% j( r/ coverheating during short-circuit.
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dragongfly

多多分享实际的例子、有实际用处的。