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MCP19123

Digitally Enhanced Power Analog Controller



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MCP19123 pdf
MCP19122/3
Digitally Enhanced Power Analog Controller
with Integrated Synchronous Driver
Synchronous Buck Features
• Input Voltage: 4.5V to 40V (operating), 48V
(non-operating)
• Output Voltage: 0.3V to 16V
- 0.1% typical output voltage accuracy
- Greater than 16V requires external divider
• Switching Frequency: 100 kHz to 1.6 MHz
• Shutdown Quiescent Current: 50 µA Typical
• High-Drive:
- +5V Gate Drive
- 2A Source Current
- 2A Sink Current
• Low-Drive:
- +5V Gate Drive
- 2A Source Current
- 4A Sink Current
• Emulated Average Current Mode Control
• Differential Remote Output Sense
• Multi-Phase Systems:
- Master or Slave
- Frequency Synchronized
- Common Current Sense Signal
• Multiple Output Systems:
- Master or Slave
- Frequency Synchronized
• AEC-Q100 Qualified
• Configureable Parameters:
- Overcurrent Limit
- Input Undervoltage Lockout
- Input Overvoltage
- Output Overvoltage
- Output Undervoltage
- Internal Analog Compensation
- Soft Start Profile
- Synchronous Driver Dead Time
- Switching Frequency
• Thermal Shutdown
Microcontroller Features
• Precision 8 MHz Internal Oscillator Block:
- Factory Calibrated
• Interrupt Capable
- Firmware
- Interrupt-on-Change Pins
• Only 35 Instructions to Learn
• 4096 Words On-Chip Program Memory
• High Endurance Flash:
- 100,000 Write Flash Endurance
- Flash Retention: >40 years
• Watchdog Timer (WDT) with Independent
Oscillator for Reliable Operation
• Programmable Code Protection
• In-Circuit Debug (ICD) via Two Pins (MCP19123)
• In-Circuit Serial Programming™ (ICSP™) via Two
Pins
• 12 I/O Pins and One Input-Only Pin (MCP19122)
- 3 Open Drain Pins
- 2 Weak Current Source Pins
• 16 I/O Pins and One Input-Only Pin (MCP19123)
- 3 Open Drain Pins
- 2 Weak Current Source Pins
• Analog-to-Digital Converter (ADC):
- 10-bit Resolution
- 24 Internal Channels
- 8 External Channels
• Timer0: 8-bit Timer/Counter with 8-Bit Prescaler
• Enhanced Timer1:
- 16-bit Timer/Counter with Prescaler
- 2 Selectable Clock Sources
- External Gate Input Mode
• Timer2: 8-Bit Timer/Counter with Prescaler
- 8-bit Period Register
• Capture, Compare Module
• I2CTM Communication:
- 7-bit Address Masking
- 2 Dedicated Address Registers
- SMBus/PMBusTM Compatibility
2017 Microchip Technology Inc.
DS20005750A-page 1



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MCP19123 pdf
MCP19122/3
Pin Diagram – 24-Pin 4X4 QFN (MCP19122)
MCP19122
24-pin QFN 4 x 4 mm
GPA0 1
GPA1 2
GPA2 3
GPA3 4
MCP19122
GPA7 5
GPA6 6
EXP-25
18 BOOT
17 HDRV
16 PHASE
15 LDRV
14 PGND
13 ISP
DS20005750A-page 2
2017 Microchip Technology Inc.



Part Number MCP19123
Description Digitally Enhanced Power Analog Controller
Maker Microchip - Microchip
Total Page 30 Pages
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