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MCP19110T-EMQ Datasheet(PDF) 9 Page - Microchip Technology

Part # MCP19110T-EMQ
Description  Digitally Enhanced Power Analog Controller with Integrated Synchronous Driver
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP19110T-EMQ Datasheet(HTML) 9 Page - Microchip Technology

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 2013 Microchip Technology Inc.
DS20002331B-page 9
MCP19110/11
1.0
DEVICE OVERVIEW
The MCP19110/11 is a highly integrated, mixed signal,
analog pulse-width modulation (PWM) current mode
controller with an integrated microcontroller core for
synchronous DC/DC step-down applications. Since the
MCP19110/11 uses traditional analog control circuitry
to regulate the output of the DC/DC converter, the
integration of the PIC® microcontroller mid-range core
is used to provide complete customization of device
operating parameters, start-up and shut down profiles,
protection levels and fault handling procedures.
The MCP19110/11 is designed to efficiently operate
from a single 4.5V to 32V supply. It features integrated
synchronous drivers, bootstrap device, internal linear
regulator and 4 kW nonvolatile memory all in a
space-saving
24-pin
4 mm x 4mm
QFN
package
(MCP19110) or 28-pin 5 mm x 5 mm QFN package
(MCP19111).
After initial device configuration using Microchip’s
MPLAB® X Integrated Development Environment (IDE)
software, the PMBus or I2C can be used by a host to
communicate with, or modify, the operation of the
MCP19110/11.
Two internal linear regulators generate two 5V rails.
One 5V rail is used to provide power for the internal
analog circuitry and is contained on-chip. The second
5V rail provides power to the PIC device and is present
on the VDD pin. It is recommended that a 1 µF capacitor
be placed between VDD and PGND. The VDD pin may
also be directly connected to the VDR pin, or connected
through a low-pass RC filter. The VDR pin provides
power to the internal synchronous driver.
FIGURE 1-1:
TYPICAL APPLICATION CIRCUIT
HDRV
BOOT
PHASE
LDRV
VIN
VDD
VDR
+ISEN
-ISEN
+VSEN
-VSEN
GND
PGND
GPB0
GPA7
GPA4
GPA1
GPB6
GPB7
GPA3
GPB2
GPA2
GPA5
GPB4
GPB5
GPA0
GPB1
GPA6
MCLR
ICDCLK
ICDDAT
SDA
SCL
SMBus Alert
SYNC
ADDR0
ADDR1
CNTL
PGOOD
TRACK
MCP19111
VIN
+VOUT
-VOUT
X ICD
Programmer
MPLAB®


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