TA的每日心情 | 开心 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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DESCRIPTION
- w" Y( E2 ]/ N5 M2 qThe ZCC2467 is a high frequency step-down switching regulator with integrated
9 H, U, D* X) e. ^: h/ sinternal high-side, high voltage power MOSFET. It provides 3.0A output with
6 h$ j) }. g* G3 @8 u9 _current mode control for fast loop response and easy compensation.
* Z8 M- `; b% ?+ u s+ Q3 PThe wide 6V to 40V input range accommodates a variety of step-down' Q# @) f3 W* F3 x5 ~$ w( m2 @
applications, including those in automotive systems. A 100μA operational3 U' n: b' _7 B+ C, M# l2 M
quiescent current allows use in battery-powered applications.4 h t; a" a6 c! m
High power conversion efficiency over a wide load range is achieved by; M8 Q; b9 q& P4 q
scaling down the switching frequency at light load condition to reduce the
6 b3 _7 B4 Q$ o+ Y1 V6 ?3 Zswitching and gate driving losses.
4 J& }" U6 \. J; K! m6 wThe frequency foldback prevents inductor current runaway during startup and
) S8 \/ I: c5 ?: h/ Xthermal shutdown provides reliable, fault tolerant operation.6 B8 E, \( R6 C) |$ `
The ZCC2467 is available in thermally enhanced SOIC8 package.
0 z% Z6 A5 f& w4 w/ {$ G$ X3 NFEATURES8 s) n. ~" \* N- f. r* |
• 100μA Quiescent Current5 R5 B8 @) I. f3 K x, G3 v
• Wide 6V to 40V Operating Input Range
; |3 Z- f3 |+ l) i/ k• 150mΩ Internal Power MOSFET
% y# m$ W: Y" W1 e: k• 500kHz Fixed Switching Frequency
% b, ~ M% ^6 |9 q. r! O, ]5 x• Ceramic Capacitor Stable
b# d; @! a/ {4 Z% M• Internal Soft-Start
- k7 _% P* B2 ^1 [• Precision Current Limit without a Current Sensing Resistor
+ E6 c! P! i6 M/ e4 @: ^• Up to 95% Efficiency. }! Z) c( l3 f- `" R! W) f
• Output Adjustable from 0.8V to 30V
* B0 D' Z- r: g) d6 {8 t- j$ A• Available in SOIC8 with Exposed Pad Packages
4 i6 d% U Q8 `4 @5 y% B |
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