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签到天数: 11 天 [LV.3]偶尔看看II
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Features
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: h7 s) d9 c! @( J; ~$ W; N20-μA Quiescent current in regulation
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Input voltage range: 4V-60V: t" }3 `6 ]5 h( ?4 A3 f& c
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Output voltage range: 1V-VIN2 s8 U' H0 t* D. e. q
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Integrated upper and lower power MOSFET
0 c! b& R* U x( C' N' Kmaximum current: 5A* t' b1 T; o( b
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Adjustable frequency range: 200KHz~2MHz0 Y: C! o; [" Y5 `
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Automatic switching of CCM/DCM/PFM mode
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9 }0 h& h/ `4 Y5 [Adjustable soft-start time and Output voltage- e% m& Y" i0 ]- h3 O4 K! }' W
tracking capability! Y! Q _3 T3 I8 p c6 u3 S* A
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Automatically switched bypass linear power" j( g( N+ W. T' a! z1 Y
supply
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Provides ultra-low input and output dropout* g# L; P: ^) K0 a" X) E
voltage close to 100% duty cycle
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Internal Compensation7 D- n7 }5 ~/ E6 k% C7 E9 d, n
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Power-good flag
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Dynamic Frequency Stretch Technology
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: Z1 F% r+ F, A( }( Z: PSupport large capacitive load start-up/ g: g- y) `( I! M( c$ z
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( R+ q* m% ~ p4 ^" q& O$ y7 \Protection function: UVLO/OCP/SCP/OTP/OVP4 C! ^0 E6 O- Q
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; V# h1 ~0 \/ M7 ?* O' ]Operating junction temperature range: -40℃ to
+ I1 C. E8 H' ~0 [5 u( F+125℃
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- X! |/ s4 F' t; OAll pins have ±2000V (HBM) ESD protection
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ETSSOP 16-Pin Exposed Pad Package# J$ q3 _$ b& o, Q, H' h9 k
Applications
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! q6 X5 y0 U4 ^/ p. {/ _3 xIndustrial power supply
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Wide voltage input range power supply7 ~5 q5 F' t" B% Y
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Low ripple low noise power supply1 b# C! [- O6 B! z
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! }. B( T$ S$ W1 Z8 c2 XAutomotive electronic power supply
$ a3 b( E! f" zFigure. 1 Typical Application Circuit
6 b' |$ `9 B( [# n& ~( |, h( MDescription- s: b& Y" g7 m' c6 d6 h
ZCC5160 is a step-down DC/DC regulator with an: r3 f& \7 }4 t+ K( o
internal switch, featuring SKIP control mode, which
6 @- W. z3 W2 c5 z" f! ccombines low quiescent current with high switching
D$ ?' H/ A: S; E* L0 K/ g% P& Jfrequency to achieve high-efficiency regulation over a/ V6 f: A, c" I: J& i
wide range of load currents. SKIP mode uses a short6 L0 {- u% Q& I/ s
"burst" cycle to switch the inductor current through
1 S1 Z4 E' j2 O) ?/ ?the internal power MOSFET, followed by a sleep+ r" A0 x& w% ^/ l7 p, t
cycle in which the power switch is turned off and the% J- b4 b8 K! i
load current is provided by the output capacitor. At
# U+ }- F. z6 p2 U; Q0 _7 M# flight loads, burst cycles are a small fraction of the
* [# `/ [ o6 m0 Itotal cycle time, minimizing average supply current
( g* ^" ~8 n" H& pand greatly improving efficiency at light loads.4 [# g! f7 I3 ^6 y, V) O
ZCC5160 has a wide input voltage range of 4V-60V,' ]& ]6 F! _8 i! I- S G; y( }
thus minimizing the need for external surge
0 [- p% J* t- h; t Z asuppression components. Making it the best choice# {4 i& T; v) d+ {4 y& J
for wide input power range industrial and high cell% ?$ h+ S' X% j% R
count battery pack applications. ZCC5160 is ideal for# y* s5 J8 u9 ?. ~# o9 ^
use in the 48V automotive power bus range.
- w3 Q9 a M' ^: G5 k7 @ S: ZZCC5160 features low-value 100mΩ high-side and
( _( A& M0 T, M( q# U g8 D2 D+ }80mΩ low-side MOSFET that provide at least 3A4 ]4 l- N% |4 B& ]7 J5 e* i9 S! V
output current capability with excellent load and line! g [' e/ h7 |: h( O! J
transient response.
2 p4 R# F7 t/ T6 X' uAdditional features include: soft-start, thermal
' B/ p5 h$ J) ?) c; I2 cshutdown, UVLO undervoltage lockout, gate driver* g% Y% E& [8 I4 k
undervoltage lockout, maximum duty cycle limit timer,4 s( ]0 x2 z5 [ e
and current limit shutdown timer. It also integrates
" {! ]4 W# n% z3 T4 d% I4 V" q1 q& aoutput short-circuit protection, providing HICCUP, s9 r. A4 u" |2 {
mode when the FB voltage is low to avoid
5 R( U) N) t/ {9 \- ?" roverheating during short-circuit.
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