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本帖最后由 Heaven_1 于 2023-2-28 09:56 编辑
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3 a4 i) s7 o" J4 q BDESCRIPTION
- l: S6 n$ [9 y YThe ZCC2467 is a high frequency step-down switching regulator with integrated& J% `8 ^2 ]2 E2 b8 j6 V `
internal high-side, high voltage power MOSFET. It provides 3.0A output with
( ?# n- q7 E( }- t* jcurrent mode control for fast loop response and easy compensation.* {" }7 @" f- {0 y% I* I2 k
The wide 6V to 40V input range accommodates a variety of step-down5 a* P+ |3 z, A! O' J
applications, including those in automotive systems. A 100μA operational
4 X. W! |7 J0 s, i2 Y4 M2 Kquiescent current allows use in battery-powered applications.' L% w+ H0 ]7 g. |! y/ I$ x9 l
High power conversion efficiency over a wide load range is achieved by% k% B' l( ?8 P
scaling down the switching frequency at light load condition to reduce the, D: u, U. z u) V6 c# x: R! Q
switching and gate driving losses.
2 ]1 N3 d! ^, w+ {The frequency foldback prevents inductor current runaway during startup and
- z# C0 _9 k7 d* Q, s& |( ~thermal shutdown provides reliable, fault tolerant operation.
# w3 G) y2 J% e* c- L' \The ZCC2467 is available in thermally enhanced SOIC8 package.# s0 w: h; G- k) G$ T
FEATURES, y& N, | M4 t' D' R) s; Z
• 100μA Quiescent Current9 [' s) F5 {; S5 w- [* M0 \( ?8 C, r
• Wide 6V to 40V Operating Input Range
6 e P) ^' `8 A) r; h. ]9 w4 c* s• 150mΩ Internal Power MOSFET1 n. E7 P P& j
• 500kHz Fixed Switching Frequency
' Z* M+ |8 B5 Q( g3 w• Ceramic Capacitor Stable
& ^; }3 v7 H* v C$ I• Internal Soft-Start$ e! p6 b& A# D7 ~- k
• Precision Current Limit without a Current Sensing Resistor0 F p: i8 g' s8 p) C; W# z: b
• Up to 95% Efficiency1 D2 V2 i( y& v3 t- |" h
• Output Adjustable from 0.8V to 30V8 G0 {$ `, v# N9 N. n; V
• Available in SOIC8 with Exposed Pad Packages
2 f" Z2 a2 y* hAPPLICATIONS
( u4 X$ I7 q7 c1 D• Game Machines
+ u/ i. V, o1 L( s- U• Automotive Systems5 i- K( B1 z' }
• Industrial Power Systems, \# E$ e. ^/ s; Z K9 R. W
• Distributed Power Systems* L7 y$ x# Q# D+ p
• Printer Systems
; ~' Y; j- N' {6 W8 F• Battery Powered Systems f. ]" G/ e6 v+ D
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发表于 2023-2-27 18:10
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