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3.3V/8A Synchronous Step-down Converter! H7 ?0 V2 e6 [6 ^. l) J
The ZCC7008B operates at high efficiency over a wideoutput current load range with fixed 3.3V output voltageand capable of delivering 8A load current. lt supports awide range input voltage from 4.5V to 23V.AdaptiveConstant-On-Time (COT) control mode provides fasttransient response, eases loop stabilization, andoperates with a low-cost electrolytic capacitorZCC7008B also integrate a 100mA LDO and bypassswitch for efficiency improving.ZCC7008B provides complete enable control, under/overvoltage protect, short circuit protect, valley current limit,thermal shutdown function features.ZCC7008B provides compact solution for TCON powersystem
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4.5V ~ 23V Input Voltage Range& F) t* x% y; h( f9 w/ E X
Fixed 3.3V output voltage
" u, L/ ~1 b& g3 d4 R/ {Supports 8-A continuous output current
# _- l$ Q6 b7 sIntegrated 20mQ High side FET and 10m0 low side FET3.3V LDO capable ofsourcing 100mA
& r& E& C6 s1 S' E' JInternal +1% reference voltage at 25°C
% o* j. J) t% U: F3 W2 E' cIntegrated bypass switch, typical Ron is 1.503 K# ^: z, w) x0 X8 K0 ^4 C- O
Internal 0.6ms soft-start7 ]7 x4 e" ]' k1 T+ K
Max switching frequency up to 500kHz m& P, S6 f; B) P! ~
fast transient response with COT control mode( W" f4 h0 O" ?7 }- E4 ?8 U" D
Power good indicator, @* F+ x- `/ [/ f
Ultrasonic Mode( K! y; b8 J& e# m; ~* T) i6 ?
Integrated protections for Uv, Ov, OT, and OCP40°C to +150°C operating junction temperature: L$ D1 \7 c5 d# ?# }7 T$ H, c) n8 d
AQFN3X3-12 FC Package
& @2 \: q2 O6 L. ?Applications
+ b% n/ E' x* l: I* V BNotebook Computers% @0 R# T) v- D' T$ B% x
Notebook, Tablet Computers4 l; f1 P9 c+ W) g! u) I, p
General power supply for 3.3V output/ I. e( e! K; ?
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