MCP16323T-330E/NG

MCP16323T-330E/NG Datasheet

MCP16323

Part	Datasheet
MCP16323T-330E/NG	MCP16323T-330E/NG (pdf)

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MCP16323T-150E/NG	MCP16323T-150E/NG
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MCP16323T-250E/NG	MCP16323T-250E/NG
MCP16323T-ADJE/NG	MCP16323T-ADJE/NG
MCP16323T-500E/NG	MCP16323T-500E/NG

PDF Datasheet Preview
Obsolete Device For further designs, please refer to the MIC24046 Data Sheet MCP16323 18V Input, 3A Output, High Efficiency Synchronous Buck Regulator with Power Good Indication • Up to 95% Typical Efficiency • Input Voltage Range 6.0V to 18V • 3A Output Current • Fixed Output Voltages 0.9V, 1.5V, 1.8V, 2.5V, 3.3V, 5V with 2% Output Voltage Accuracy • Adjustable Version Output Voltage Range: 0.9V to 5V with Reference Voltage Accuracy • Integrated N-Channel High-Side Switch 180 • Integrated N-Channel Low-Side Switch 120 • 1 MHz Fixed Frequency • Low Device Shutdown Current • Peak Current Mode Control • Internal Compensation • Stable with Ceramic Capacitors • Internal Soft-Start • Cycle-by-Cycle Peak Current Limit • Undervoltage Lockout UVLO 5.75V • Overtemperature Protection • VOUT Overvoltage Protection • VOUT Voltage Supervisor Reported at the PG Pin • Available Package QFN-16 3x3 mm • Microcontroller Bias Supply • 12V Industrial Input DC-DC Conversion • Set-Top Boxes • DSL Cable Modems • Automotive • Wall Cube Regulation • SLA Battery Powered Devices • AC-DC Digital Control Power Source • Power Meters • Consumer • Medical and Health Care • Distributed Power Supplies The MCP16323 is a highly integrated, high-efficiency, fixed frequency, synchronous step-down DC-DC converter in a 16-pin QFN package that operates from input voltages up to 18V. Integrated features include a high-side and low-side N-Channel switch, fixed frequency Peak Current Mode Control, internal compensation, peak current limit, VOUT overvoltage protection and overtemperature protection. Minimal external components are necessary to develop a complete synchronous step-down DC-DC converter power supply. High converter efficiency is achieved by integrating a high-speed, current limited, low resistance, high-side N-Channel MOSFET, as well as a high-speed, lowresistance, low-side N-Channel MOSFET and associated drive circuitry. High switching frequency minimizes the size of the inductor and output capacitor, resulting in a small solution size. The MCP16323 device can supply 3A of continuous current while regulating the output voltage from 0.9V to 5V. A high-performance peak current mode architecture keeps the output voltage tightly regulated, even during input voltage steps and output current transient conditions that are common in power supplies. The regulator can be turned on and off with a logic level signal applied to the EN input. The EN pin is internally pulled up to a 4.2V reference and is rated for a maximum of 6V. With EN low, typically 5 µA of current is consumed from the input, making the part ideal for power shedding and load distribution applications. The PG output is an open-drain output pin used to interface with other components of the system, and can be pulled up to a maximum of 6V. The output voltage can either be fixed at output voltages of 0.9V, 1.5V, 1.8V, 2.5V, 3.3V, 5V or adjustable using an external resistor divider. The MCP16323 is offered in a 3x3 QFN-16 surface mount package. 2011-2016 Microchip Technology Inc. DS20002284B-page 1 MCP16323 Package Type MCP16323 3x3 QFN* PGND PGND 16 15 14 13 12 SW VIN 2 VIN 3 SGND 4 EP 17 11 VIN 10 BOOST 9 EN 8 * Includes Exposed Thermal Pad EP see Table Typical Applications Typical Application with Adjustable Output Voltage VIN 6.0V to 18V CIN 2x10 µF CBOOST 22 nF BOOST SW L1 µH MCP16323 VIN kΩ VOUT 10 kΩ 10 kΩ SGND PGND VOUT 4.2V 3A COUT 2 x 22 µF Typical Application with Fixed Output Voltage

PDF Datasheet Preview

Obsolete Device

For further designs, please refer to the MIC24046 Data Sheet

MCP16323
18V Input, 3A Output, High Efficiency Synchronous Buck Regulator with Power Good Indication
• Up to 95% Typical Efficiency
• Input Voltage Range 6.0V to 18V
• 3A Output Current
• Fixed Output Voltages 0.9V, 1.5V, 1.8V, 2.5V,
3.3V, 5V with 2% Output Voltage Accuracy
• Adjustable Version Output Voltage Range:
0.9V to 5V with Reference Voltage Accuracy
• Integrated N-Channel High-Side Switch 180
• Integrated N-Channel Low-Side Switch 120
• 1 MHz Fixed Frequency
• Low Device Shutdown Current
• Peak Current Mode Control
• Internal Compensation
• Stable with Ceramic Capacitors
• Internal Soft-Start
• Cycle-by-Cycle Peak Current Limit
• Undervoltage Lockout UVLO 5.75V
• Overtemperature Protection
• VOUT Overvoltage Protection
• VOUT Voltage Supervisor Reported at the PG Pin
• Available Package QFN-16 3x3 mm
• Microcontroller Bias Supply
• 12V Industrial Input DC-DC Conversion
• Set-Top Boxes
• DSL Cable Modems
• Automotive
• Wall Cube Regulation
• SLA Battery Powered Devices
• AC-DC Digital Control Power Source
• Power Meters
• Consumer
• Medical and Health Care
• Distributed Power Supplies

The MCP16323 is a highly integrated, high-efficiency, fixed frequency, synchronous step-down DC-DC converter in a 16-pin QFN package that operates from input voltages up to 18V. Integrated features include a high-side and low-side N-Channel switch, fixed frequency Peak Current Mode Control, internal compensation, peak current limit, VOUT overvoltage protection and overtemperature protection. Minimal external components are necessary to develop a complete synchronous step-down DC-DC converter power supply.

High converter efficiency is achieved by integrating a high-speed, current limited, low resistance, high-side N-Channel MOSFET, as well as a high-speed, lowresistance, low-side N-Channel MOSFET and associated drive circuitry. High switching frequency minimizes the size of the inductor and output capacitor, resulting in a small solution size.

The MCP16323 device can supply 3A of continuous current while regulating the output voltage from 0.9V to 5V. A high-performance peak current mode architecture keeps the output voltage tightly regulated, even during input voltage steps and output current transient conditions that are common in power supplies.

The regulator can be turned on and off with a logic level signal applied to the EN input. The EN pin is internally pulled up to a 4.2V reference and is rated for a maximum of 6V. With EN low, typically 5 µA of current is consumed from the input, making the part ideal for power shedding and load distribution applications. The PG output is an open-drain output pin used to interface with other components of the system, and can be pulled up to a maximum of 6V.

The output voltage can either be fixed at output voltages of 0.9V, 1.5V, 1.8V, 2.5V, 3.3V, 5V or adjustable using an external resistor divider. The MCP16323 is offered in a 3x3 QFN-16 surface mount package.
2011-2016 Microchip Technology Inc.

DS20002284B-page 1

MCP16323

Package Type

MCP16323 3x3 QFN*

PGND

PGND
16 15 14 13
12 SW

VIN 2 VIN 3 SGND 4

EP 17
11 VIN 10 BOOST 9 EN 8
* Includes Exposed Thermal Pad EP see Table

Typical Applications Typical Application with Adjustable Output Voltage

VIN 6.0V to 18V

CIN 2x10 µF

CBOOST 22 nF

BOOST SW

L1 µH

MCP16323

VIN kΩ

VOUT 10 kΩ
10 kΩ

SGND

PGND

VOUT 4.2V 3A

COUT 2 x 22 µF

Typical Application with Fixed Output Voltage

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Datasheet ID: MCP16323T-330E/NG 648136