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2022-8-5 15:55 |
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签到天数: 11 天 [LV.3]偶尔看看II
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Features/ C' e! K1 B: D% u$ x& \
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' Q& g0 O \( D# `- M8 o. D20-μA Quiescent current in regulation; C3 q" B* W0 d4 y5 K, r* \
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6 @+ B. E4 G1 j" xInput voltage range: 4V-60V* C$ i& q9 v& \4 h J8 A
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Output voltage range: 1V-VIN
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1 ]8 X+ F) [$ UIntegrated upper and lower power MOSFET2 X d3 w' M0 c2 x- } L! n N4 [3 _
maximum current: 5A9 m+ _/ ]# Q* u9 C7 Z, n
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5 ~) F0 D! U! Z3 x: w) G4 PAdjustable 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 voltage7 L& j+ V/ X/ E7 d3 o$ k) u
tracking capability) _* S2 r1 a4 t( k9 A
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0 [' k9 F" ^1 r5 `, EAutomatically switched bypass linear power
; B4 S" i+ {2 u+ ~8 Q, W& E5 }supply/ p+ d* }7 G! a
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Provides ultra-low input and output dropout0 q, R D# Q. T3 @7 c- P
voltage close to 100% duty cycle
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6 L/ H# K5 m9 z$ P* G D. cInternal Compensation
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2 |) j- h8 f' L. q. `0 L/ LPower-good flag! b% Z, h/ Z# j0 ]4 e
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Dynamic Frequency Stretch Technology/ }( }3 |; v" j5 r
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Support large capacitive load start-up% H% v5 B$ I0 h' B5 N! z) y
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2 }+ h5 k+ U8 }Protection function: UVLO/OCP/SCP/OTP/OVP
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" ^( n$ T3 m6 R; w {- hOperating junction temperature range: -40℃ to) }% o; X" x! N
+125℃9 u; e, _' g% o2 m# ]
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5 I9 v% r V: tAll pins have ±2000V (HBM) ESD protection2 Z( H l& z: `" Q$ q
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ETSSOP 16-Pin Exposed Pad Package7 C; B1 |& w5 t( D' t& G
Applications& |) T9 {* V$ J" Q4 ^
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Industrial power supply
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Wide voltage input range power supply' d9 h: V2 z: f% X; T! M: t
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Low ripple low noise power supply& J# ?* x! D: `
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Automotive electronic power supply
3 ^2 Q4 X3 W" S0 c2 o$ sFigure. 1 Typical Application Circuit
6 F. i4 ^, C! D+ o. RDescription n, p; O' ^9 V
ZCC5160 is a step-down DC/DC regulator with an
$ a+ s/ o4 _; L: Z9 zinternal switch, featuring SKIP control mode, which
' t/ c; o2 _7 a1 h7 G" tcombines low quiescent current with high switching
7 h. g8 V$ W7 W" X: \( _frequency to achieve high-efficiency regulation over a& ^- d( h& m& l
wide range of load currents. SKIP mode uses a short4 [5 i/ r2 S9 S* e3 g* Z% h5 _' A
"burst" cycle to switch the inductor current through/ b7 |8 u7 X4 m0 }/ [/ y
the internal power MOSFET, followed by a sleep
, y$ ]0 E0 i6 t; R0 x4 ^2 X4 scycle in which the power switch is turned off and the( f* e5 k# a/ P7 }
load current is provided by the output capacitor. At
8 ?" I9 Z7 G! O) T- a( q; `1 L) d) Slight loads, burst cycles are a small fraction of the
7 V8 r6 g0 s. J0 C. p1 btotal cycle time, minimizing average supply current
6 I: L" C* U2 i: o/ ?6 b1 n! eand greatly improving efficiency at light loads.
' F, S( l7 K: U I' d* _7 k2 lZCC5160 has a wide input voltage range of 4V-60V,5 {& b% P: g& N7 N! Y. L
thus minimizing the need for external surge
6 l4 Z. Q& [7 D; H+ i& ^# esuppression components. Making it the best choice
. X9 g1 o5 G2 v* Z) bfor wide input power range industrial and high cell
( C# Y5 g% c# ?3 U9 v; t( K8 k9 I2 @count battery pack applications. ZCC5160 is ideal for
* g7 V0 C1 |, U' O: Guse in the 48V automotive power bus range., d) w1 P$ T, c- \" v+ c. G
ZCC5160 features low-value 100mΩ high-side and
! Y. k, X" Z7 ^. A80mΩ low-side MOSFET that provide at least 3A9 E1 F; q. ~% G# P8 n3 n0 ?
output current capability with excellent load and line
7 p& P' I5 l1 @. [, q7 Itransient response. L1 G! d I2 e& j& N
Additional features include: soft-start, thermal( X8 M2 H0 A* ]3 G
shutdown, UVLO undervoltage lockout, gate driver0 z( ?* z( A0 w3 l
undervoltage lockout, maximum duty cycle limit timer,, B2 A# k8 ^( M- G
and current limit shutdown timer. It also integrates, ]$ G5 v& R/ B
output short-circuit protection, providing HICCUP
( D2 K- e; X! a# c: x3 T9 w: Gmode when the FB voltage is low to avoid
1 m- d0 c& J6 P! m* g# ^overheating during short-circuit.
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发表于 2022-9-7 18:03
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