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2022-8-5 15:55 |
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3.3V/8A Synchronous Step-down Converter
! X( N9 S! K1 V2 z6 @8 S+ |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 Range3 I9 Y- i1 v" j5 A5 |
Fixed 3.3V output voltage# e$ Q8 J9 t! d. s2 q D
Supports 8-A continuous output current
+ H7 g4 B# l8 v! YIntegrated 20mQ High side FET and 10m0 low side FET3.3V LDO capable ofsourcing 100mA
) P$ `/ A/ Y/ A d4 \Internal +1% reference voltage at 25°C
" N, h) }5 N, b" ?9 \( u f% G6 M: t2 }Integrated bypass switch, typical Ron is 1.50
9 v7 r, \9 u$ kInternal 0.6ms soft-start
6 }+ n0 I; E2 o$ `( T4 cMax switching frequency up to 500kHz
3 x3 q: s5 ?4 n0 {fast transient response with COT control mode
& I& ?/ |3 I' QPower good indicator
2 _1 @, u9 C, D* O% xUltrasonic Mode7 d& D. `+ g, C+ ` v
Integrated protections for Uv, Ov, OT, and OCP40°C to +150°C operating junction temperature
0 i* n+ ~1 N1 T2 ]2 A, S5 o" g3 XAQFN3X3-12 FC Package
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Notebook Computers, B2 A. L. l: x3 M" C9 h
Notebook, Tablet Computers$ Y9 [. B; C: p4 d) M" u8 S
General power supply for 3.3V output
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