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FEATURES' W* Z6 D0 s5 i) X& A$ c$ ^
*Wide ViN Range: 2.7V to 17V
3 \; q: X. \. n5 J4 H4 e: k6 v*Wide VouT Range: 0.6V to VIN
6 B5 A$ c* C+ L*95% Max Efficiency( M' `8 j0 O' ?! x! p9 T' R
*Lowl0 :3.5pA, Zero-Current Shutdown
2 i/ d8 R: t9 H" p*Constant Frequency (1MHz/2.25MHz)# B5 |8 w/ d1 x; `, H
*Fixed VouT Options Available
8 f( u/ z9 z$ z& X( R; S*Low Dropout Operation (100% Duty Cycle) with Ultralow IQ
* k& R& n3 G4 K: ?# |( `*2A Rated Output Current: s4 X& B1 _* I$ g9 i
*+1% 0utput Voltage Accuracy6 C9 M, P6 z4 _
*Current Mode Operation for Excellent Line and LoadTransient Response
0 ^3 e! [2 K+ M*Synchronizable to External Clock
- B8 @+ @ H; C- j*Pulse-Skipping, Forced Continuous, Burst Mode® Operation3 ^" S8 T& P9 u; h6 c1 U4 s! k
*Internal Compensation and Soft-Start" O) L+ S( B7 c; @- p
*Overtemperature Protection5 s+ k7 o: p k. z' H
*Compact 8-Lead DFN (3mm x 3mm) Package
) _$ K, F! ]! [- RDESCRIPTION% J0 L$ B O' t/ r4 K9 s
The ZCC3624/ZCC3624-2 is a high efficiency 17V, 2A synchronous monolithic step-down regulator The switch-ing frequency is fixed to 1MHz(ZCC3624)or 2.25MHz(ZCC3624-2)with a ±40% synchronization range. The regulator features ultralow quiescent current and high efficiency over a wide VouT range.
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" D6 R7 n7 }& ? U$ tThe step-down regulator operates from an input voltage range of 2.7V to 17V and provides an adjustable output range from 0.6Vto ViN while delivering up to 2A ofoutput current. A user-selectable mode input is provided to allow the user to trade off ripple noise for light load efficiency; Burst Mode operation provides the highest efficiency at lightloads,while pulse-skipping mode providestheowest voltage ripple. The MODE pin can also be used to sync the switching frequency to an external clock.! M) K! ~, k; [
APPLICATIONS. d/ M' w$ ]8 v
*Battery Powered Equipment
# u2 Z3 }9 m& }5 x*Portable Instrumentation
+ R1 X8 ~% N) h*Emergency Radios' R: O x1 P- F0 u8 }* D0 m. s
*General Purpose Step-Down Supplies/ m% V: l- z$ @ G) x
合作洽谈：402572194（QQ）& {# U1 t w- ~6 K7 r7 `" z$ P0 l
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