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3.3V/8A Synchronous Step-down Converter- d% Q7 F. E6 N3 R
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$ e1 E4 {. T4 T9 m1 o3 g ^
Features
. ^8 B6 j1 c3 a5 R1 G( }0 B/ H4.5V ~ 23V Input Voltage Range/ R7 r) }; z# ?5 T
Fixed 3.3V output voltage
3 a3 R0 F5 ^& b+ V( L! ?+ ~Supports 8-A continuous output current
/ p$ b% ]4 u; V9 R* tIntegrated 20mQ High side FET and 10m0 low side FET3.3V LDO capable ofsourcing 100mA
* v* D* S3 y$ G: F1 C# u- R% pInternal +1% reference voltage at 25°C
9 q# ?/ H7 Q! P, b/ XIntegrated bypass switch, typical Ron is 1.50; p& Z' Q' h( H$ G
Internal 0.6ms soft-start
! C: h" A4 S+ |* n' ~Max switching frequency up to 500kHz7 @. G) w: ] [5 U* S0 v1 ~0 u
fast transient response with COT control mode$ A- P% C" y8 X$ L' T
Power good indicator
5 ?2 h4 o/ ~' OUltrasonic Mode- q+ w8 _5 O, k
Integrated protections for Uv, Ov, OT, and OCP40°C to +150°C operating junction temperature5 t! z9 k9 x& T+ F `6 k; ^, g+ C# l h
AQFN3X3-12 FC Package
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Notebook Computers \) |% B K( ?- j
Notebook, Tablet Computers9 J. D& ^2 c* H" v+ K( b
General power supply for 3.3V output
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