I2C口同步降压100W输出-ZCC7200

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Features
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' D2 L( {+ U2 h/ C3 f7 \* z$ \3 |Wide Input Voltage Range from 4V to 36V
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3 D& a' O0 r. L% z2 gProgrammable VOUT Range from 0.8V to 24V
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; X' G8 X% W4 e# j, YPeak Current Mode Control
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Integrated 6V/3A Peak Gate Drive
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Adjustable Cycle-by-Cycle Current Limit by ILIM
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Adjustable Frequency: 100kHz~1MHz
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External Soft-Start Limits the Input Inrush Current
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Internal PMOS Driver for Bypass Mode
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, t& D' S: k; a* D0 r) MSelectable FCCM or DCM with Pulse Skipping
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* |/ h- e& |9 s8 Q4 }; |Cable Impedance Compensation
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1 e/ K7 E" X$ c2 q5 ILow Dropout Operation with Maximum Duty
Cycle at 99.5%
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I2C Programmable Output Range from 3.0V to
21V in 200mV Per Step
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6 k6 x9 D  c; S. }- }Input Under-Voltage Lockout
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# @* u* y3 H" q4 I$ vOutput OCP, SCP, OVP
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Thermal Shutdown
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QFN-20 Package, 3mm×3mm×0.75mm
& I, x! U7 M2 R+ Z8 q( D& rDescription
) z8 v. w8 j# J4 I4 _) {The ZCC7200 is a synchronous buck controller mainly
for widely varying input step-down regulator
applications. The control method is based upon
current mode control that enables maximum
peRFormance under transient conditions. The output
# V  i- @1 @3 U* c4 ?voltage can be either programmed by the FB pin or
configured by the I2C interface from 3.0V to 21V in
4 V. {+ Y  {/ ]6 {3 L4 y! P* j200mV per step. It operates as a Buck mode while
the input voltage is sufficiently greater than the
' f* D, O/ p8 t0 Jregulated output voltage and transitions to the bypass
mode as the input voltage very approaches the output
: f+ {" h) b+ l4 Y( k) S8 ^- {voltage. It also features an adjustable soft-start
function and offers protection features including input
UVLO, cycle-by-cycle current limit, output overload
. F+ g+ c! a# V# l, [0 M' M( N1 zprotection (OLP) or OVP and thermal shutdown. In
addition, it features selectable Forced Continuous
Conduction Mode (FCCM) or Discontinuous
Conduction Mode (DCM) operation for light load.
The ZCC7200 integrates an I2C compatible interface
for bypass mode selecting, output voltage setting, etc.
, {! f$ Y  L) \  C! k: OThe ZCC7200 is available in compact QFN3x3-20.


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同步降压输出     
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