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本帖最后由 Heaven_1 于 2022-9-22 20:23 编辑
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Features
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20-μA Quiescent current in regulation; D% o5 v) i( H2 ?
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. G& |; m( J/ R* p) | j: I, wInput voltage range: 4V-60V
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( }, |* Y% b. A5 F1 ^4 OOutput voltage range: 1V-VIN
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Integrated upper and lower power MOSFET
. p7 m1 _. N. r7 v; o- dmaximum current: 5A$ r. g- e) ?; \7 w. I" Z
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f. N/ \0 N# Q1 {5 H( a2 W% \1 mAdjustable frequency range: 200KHz~2MHz- F( f9 V9 W2 c: T6 ^8 w: g
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Automatic switching of CCM/DCM/PFM mode
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7 i; J( ^8 D z# c( u5 iAdjustable soft-start time and Output voltage
' j7 m+ B( b# e( o- w. dtracking capability3 C% O k' o) c( O, L$ t
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6 ~$ E$ Q8 Y' ^; M+ H+ w/ |Automatically switched bypass linear power+ d4 [3 W/ j& {$ X) {
supply7 l2 T' s4 e/ _0 b0 K# Q
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' s* }: q& e# v" j6 ]/ v4 S6 d) \Provides ultra-low input and output dropout
5 X. ^' {. n) Y% H$ d( _! Fvoltage close to 100% duty cycle
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Internal Compensation
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3 U1 e$ [1 f# j# [% v' H0 X# c3 hPower-good flag q; ~$ e! u; L: |+ U
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7 l0 \, Y* p3 H7 A9 iDynamic Frequency Stretch Technology' U8 \, U# N7 a- \7 |. x
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Support large capacitive load start-up' O! R$ g' p! X x
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& S0 i0 y; ^5 x9 ^Protection function: UVLO/OCP/SCP/OTP/OVP( p+ x' J' \9 t& j2 n# o
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Operating junction temperature range: -40℃ to
3 L' \2 h7 y8 ]+ P5 s- H1 _5 r' y+125℃
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0 _3 d9 u, P* ^4 AAll pins have ±2000V (HBM) ESD protection
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0 {/ `/ T* d: q' UETSSOP 16-Pin Exposed Pad Package: @6 t, C* m4 ]! R6 C
Applications; l8 W0 J& c( c& d+ i
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Industrial power supply+ r! U x! C; \$ T# \
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Wide voltage input range power supply$ _9 d0 @6 K Y9 M( o1 Q
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D) |6 h) [& @: _Low ripple low noise power supply3 p+ p' s# T! [" a4 u* H
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Automotive electronic power supply7 F. `0 ~ H7 w; g' o. x% |; u2 A% @
Figure. 1 Typical Application Circuit
5 ^9 I/ g! O2 q# V: i6 SDescription8 V m6 V: i9 Y) D- Q: m
ZCC5160 is a step-down DC/DC regulator with an
; X) L% E6 z- N5 D+ `1 z& i: Y6 c% Vinternal switch, featuring SKIP control mode, which
5 c6 X+ O4 E9 N e lcombines low quiescent current with high switching: }9 D3 r7 h: A* W4 ]7 }5 F
frequency to achieve high-efficiency regulation over a: C& K; _- q6 V& y. u( D
wide range of load currents. SKIP mode uses a short
9 ~; k. i3 N6 ^0 r: S"burst" cycle to switch the inductor current through9 |8 P1 d! g- j
the internal power MOSFET, followed by a sleep h2 p' T$ J t# U+ D+ O
cycle in which the power switch is turned off and the/ f5 J, o. V" V$ i0 l: ^
load current is provided by the output capacitor. At
+ K0 `' L8 ^/ Y3 ]+ tlight loads, burst cycles are a small fraction of the* x7 j4 j( H K& C1 g" g# e
total cycle time, minimizing average supply current) M. D9 f" ]6 s/ n
and greatly improving efficiency at light loads.
4 F* ]5 M. y' t% @ZCC5160 has a wide input voltage range of 4V-60V,
0 L* k" r! d0 X! [thus minimizing the need for external surge6 o/ v0 n5 k4 w% m; v
suppression components. Making it the best choice( w- e) J' d/ M
for wide input power range industrial and high cell
8 v$ s2 T' Z& Acount battery pack applications. ZCC5160 is ideal for! I- T& n7 w# H; |0 d: @: E' W
use in the 48V automotive power bus range.
' x/ b; c8 E/ z7 h0 UZCC5160 features low-value 100mΩ high-side and) D/ J) w, ] n# i; x1 y G) y
80mΩ low-side MOSFET that provide at least 3A) e R; z$ Y K; G' ^$ w: R
output current capability with excellent load and line5 S$ ~4 y& g7 t5 K& b
transient response.
4 Z5 J. \ C5 R IAdditional features include: soft-start, thermal: p+ d# t3 I7 W
shutdown, UVLO undervoltage lockout, gate driver- X3 l$ e7 U {4 e( M
undervoltage lockout, maximum duty cycle limit timer,+ P1 z* c. Z+ ]) V! n! m2 R
and current limit shutdown timer. It also integrates! ]0 W) N0 P3 K. p5 s
output short-circuit protection, providing HICCUP1 [) K: f$ q2 F) }5 ]
mode when the FB voltage is low to avoid4 F6 y( q: X, W6 O! l& {
overheating during short-circuit.0 B5 F3 h4 |$ J
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发表于 2022-9-22 18:05
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