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MCP16311/2 Arkusz danych(PDF) 14 Page - Microchip Technology

Numer części MCP16311/2
Szczegółowy opis  30V Input, 1A Output, High-Efficiency, Integrated Synchronous Switch Step-Down Regulator
PDF  40 Pages
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Producent  MICROCHIP [Microchip Technology]
Strona internetowa  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP16311/2 Arkusz danych(HTML) 14 Page - Microchip Technology

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MCP16311/2
DS20005255C-page 14
 2013-2019 Microchip Technology Inc.
4.1.8
SOFT START
The internal reference voltage rate of rise is controlled
during start-up, minimizing the output voltage
overshoot and the inrush current.
4.1.9
UNDERVOLTAGE LOCKOUT
An integrated Undervoltage Lockout (UVLO) prevents
the converter from starting until the input voltage is high
enough for normal operation. The converter will
typically start at 4.1V and operate down to 3.6V.
Hysteresis is added to prevent starting and stopping
during start-up as a result of loading the input voltage
source.
4.1.10
OVERTEMPERATURE
PROTECTION
Overtemperature protection limits the silicon die
temperature to +150°C by turning the converter off. The
normal switching resumes at +125°C.
FIGURE 4-1:
MCP16311/2 Block Diagram.
COUT
CBOOST
Slope
Comp
PWM
Latch
+
-
Overtemp
UVLO
R
Comp
Amp
+
-
CCOMP
RCOMP
HS
Drive
CS
VREG
BG
REF
SS
VREF
OTEMP
500 kHz OSC
S
VOUT
VOUT
RSENSE
VIN
EN
RTOP
RBOT
BOOST
SW
PGND
FB
VREF
SHDN all blocks
+
-
CIN
+
+
LS
Drive
VCC
C VCC
VCC
VCC
PFM
PFM
CTR
VREF
AGND



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