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本帖最后由 Heaven_1 于 2023-2-28 09:56 编辑
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. f- B) d9 X: s% x6 R9 EDESCRIPTION( ~& K) F& u" B* Z- u$ [
The ZCC2467 is a high frequency step-down switching regulator with integrated' m# C0 }+ J3 E
internal high-side, high voltage power MOSFET. It provides 3.0A output with. K( @! H% F3 z( x2 `
current mode control for fast loop response and easy compensation.
! D9 O# c! w, U0 CThe wide 6V to 40V input range accommodates a variety of step-down
9 Y4 s1 b" v5 ^. Napplications, including those in automotive systems. A 100μA operational, t; w6 ?) Y- }( v/ R
quiescent current allows use in battery-powered applications.6 ]. B1 c2 ]; M* d9 M" _# s
High power conversion efficiency over a wide load range is achieved by
8 W K; N3 i5 z6 o4 R2 I! Q9 oscaling down the switching frequency at light load condition to reduce the
! I4 o4 g; V9 ~: q* q9 Sswitching and gate driving losses.
+ o3 u7 I5 P- S4 sThe frequency foldback prevents inductor current runaway during startup and
, o D* d3 f$ ]3 M4 c1 Y' I$ e: xthermal shutdown provides reliable, fault tolerant operation.- @$ U) \, {: V
The ZCC2467 is available in thermally enhanced SOIC8 package.
2 h) O( G& {/ H. OFEATURES
# Y( b5 N' Q6 H• 100μA Quiescent Current
2 _8 H, k9 d( l P9 `3 d• Wide 6V to 40V Operating Input Range: d& c7 g. x7 t( C. E
• 150mΩ Internal Power MOSFET0 V8 \! k* J0 U9 y+ Y
• 500kHz Fixed Switching Frequency
4 w# J; q& I9 W1 s k• Ceramic Capacitor Stable
$ x/ u$ ~. @/ q4 D7 g• Internal Soft-Start1 A6 ^ o% j0 E
• Precision Current Limit without a Current Sensing Resistor
: y! C% h6 z& f- @• Up to 95% Efficiency
1 P) e0 A+ T& x1 O' w" s• Output Adjustable from 0.8V to 30V7 a7 U/ o, A, W' [4 m
• Available in SOIC8 with Exposed Pad Packages
, e, f+ `- G, s m: v2 _) TAPPLICATIONS. y: E6 J) U( c1 c. z- z6 B
• Game Machines
. ~, v8 @$ r9 Z E' U• Automotive Systems1 f, N! B5 E O1 s \
• Industrial Power Systems7 m6 u9 x9 i5 M
• Distributed Power Systems
5 Y# n( G `9 t T# S• Printer Systems5 {, |, Y' O5 W1 e( @3 ]; N
• Battery Powered Systems
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发表于 2023-2-27 18:10
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