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2022-8-5 15:55 |
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DESCRIPTION
& n. t9 m* U0 M7 Z2 v, gThe ZCC2467 is a high frequency step-down switching regulator with integrated) f+ L5 n& p, _& `, [
internal high-side, high voltage power MOSFET. It provides 3.0A output with# I8 m9 [* b& {. r/ V( q, x
current mode control for fast loop response and easy compensation.: B) m3 e* o- @+ Y! d0 q+ A: v) j" A7 ?
The wide 6V to 40V input range accommodates a variety of step-down0 E1 h+ j' V# g# u
applications, including those in automotive systems. A 100μA operational
7 d% v) M! Z9 d3 k5 T1 bquiescent current allows use in battery-powered applications.
u; `3 U7 w8 ^( `High power conversion efficiency over a wide load range is achieved by" T; d& \ e4 W6 K; p. Y
scaling down the switching frequency at light load condition to reduce the- ~- d e, m0 B' B. d0 I; R
switching and gate driving losses.; T# f: ^ s; f" A
The frequency foldback prevents inductor current runaway during startup and9 ~/ {4 i% A/ p/ d. R
thermal shutdown provides reliable, fault tolerant operation.8 g! L+ P) Z. [( i, y
The ZCC2467 is available in thermally enhanced SOIC8 package.; M2 ^8 G" @2 y& }
FEATURES
0 s9 ~" M( k& Q* L2 z/ K• 100μA Quiescent Current; v9 |. H$ S- @# D
• Wide 6V to 40V Operating Input Range
# t6 R B3 o3 `: W0 G+ Q3 \4 z) u5 y• 150mΩ Internal Power MOSFET
) K+ y9 |, j+ w F4 g( {. b7 s• 500kHz Fixed Switching Frequency8 Y$ ~' \6 Y8 s$ A% R4 G( m
• Ceramic Capacitor Stable) e, t) a8 a/ K* t6 q7 l
• Internal Soft-Start' c2 s8 p7 H5 X; |
• Precision Current Limit without a Current Sensing Resistor
8 ?9 b3 V7 o) f P• Up to 95% Efficiency7 t0 k+ \6 g5 U+ ]: o) Y
• Output Adjustable from 0.8V to 30V
/ K6 d5 m; ~5 [4 J• Available in SOIC8 with Exposed Pad Packages
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发表于 2022-9-8 18:25
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