I2C口同步降压100W输出-ZCC7200

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Features
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Wide Input Voltage Range from 4V to 36V
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Programmable VOUT Range from 0.8V to 24V
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Peak Current Mode Control
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Integrated 6V/3A Peak Gate Drive
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8 |1 j: x' @- K! H* T6 V8 yAdjustable Cycle-by-Cycle Current Limit by ILIM
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Adjustable Frequency: 100kHz~1MHz
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5 {( s6 l/ K+ Y. U- z: T- {! iExternal Soft-Start Limits the Input Inrush Current
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5 t* p. Y, V2 E- F* _. SInternal PMOS Driver for Bypass Mode
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Selectable FCCM or DCM with Pulse Skipping
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Cable Impedance Compensation
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Low Dropout Operation with Maximum Duty
: J6 k# ^8 Z$ e. e. k% n6 @* T3 h7 OCycle at 99.5%
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. |# u+ ?- {; i. K9 h, }I2C Programmable Output Range from 3.0V to
: b5 I  [7 `$ s5 n# l( B! i  m- _21V in 200mV Per Step
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0 |1 J! S% J3 O3 a) KInput Under-Voltage Lockout
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Output OCP, SCP, OVP
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Thermal Shutdown
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2 ?) c$ Y  L7 l4 MQFN-20 Package, 3mm×3mm×0.75mm
& h8 i& T* r( M. p+ L7 _Description
0 s* S* s7 M0 B2 M: q) VThe ZCC7200 is a synchronous buck controller mainly
  S' i( e( D9 P9 Z0 cfor widely varying input step-down regulator
+ T, P8 R2 G& T) Q' p1 t! xapplications. The control method is based upon
' K/ t7 T$ O  `* ~. Lcurrent mode control that enables maximum
# }" M1 ~! ~  q; S% ~' f1 M  `peRFormance under transient conditions. The output
% g( D2 u, X+ J" X  V# K  l" Tvoltage can be either programmed by the FB pin or
7 V* o! V4 s+ Econfigured by the I2C interface from 3.0V to 21V in
200mV per step. It operates as a Buck mode while
' ^  V% g1 B6 j6 R/ Lthe input voltage is sufficiently greater than the
regulated output voltage and transitions to the bypass
mode as the input voltage very approaches the output
voltage. It also features an adjustable soft-start
. X# }/ u7 b" H' K) }function and offers protection features including input
& d2 D$ a4 w/ m2 ^. XUVLO, cycle-by-cycle current limit, output overload
% [$ h* c6 ]) c$ n3 fprotection (OLP) or OVP and thermal shutdown. In
addition, it features selectable Forced Continuous
/ \4 `/ p$ x% E+ c+ nConduction Mode (FCCM) or Discontinuous
3 ]% ^% _$ t" g8 I: Y% OConduction Mode (DCM) operation for light load.
; ^2 |. X2 m- j* I- MThe ZCC7200 integrates an I2C compatible interface
7 T# t, a  t$ e, Xfor bypass mode selecting, output voltage setting, etc.
( C4 ]( _9 r4 V1 }- SThe ZCC7200 is available in compact QFN3x3-20

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