MCP16311 Series

30V/1A PFM/PWM Synchronous Buck Regulator

Catalog

30V/1A PFM/PWM Synchronous Buck Regulator

Part	Voltage - Input (Max) [Max]	Package / Case	Number of Outputs	Output Configuration	Current - Output	Function	Voltage - Output (Min/Fixed) [Min]	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Voltage - Output (Max)	Mounting Type	Supplier Device Package	Voltage - Input (Min) [Min]	Frequency - Switching	Grade	Package / Case [custom]	Package / Case	Qualification
Microchip Technology MCP16311T-E/MNY	30 V	8-WFDFN Exposed Pad	1	Positive	1 A	Step-Down	2 V	Buck	125 ¯C	-40 °C	Adjustable	24 V	Surface Mount	8-TDFN (2x3)	4.4 V	500 kHz
Microchip Technology MCP16311T-E/MSVAO	30 V	8-MSOP 8-TSSOP	1	Positive	1 A	Step-Down	2 V	Buck	125 ¯C	-40 °C	Adjustable	24 V	Surface Mount	8-MSOP	4.4 V	500 kHz	Automotive	0.118 in	3 mm	AEC-Q100
Microchip Technology MCP16311T-E/MNYVAO	30 V	8-WFDFN Exposed Pad	1	Positive	1 A	Step-Down	2 V	Buck	125 ¯C	-40 °C	Adjustable	24 V	Surface Mount	8-TDFN (2x3)	4.4 V	500 kHz	Automotive			AEC-Q100

Catalog

30V/1A PFM/PWM Synchronous Buck Regulator

Key Features

• * Up to 95% Efficiency

• * Input Voltage Range: 4.4V to 30V

• * 1A Output Current Capability

• * Output Voltage Range: 2.0V to 24V

• * 170mΩ, Low Side

• * 300mΩ, High Side

• * Stable Reference Voltage: 0.8V

• * MCP16312 provides PWM-only operation

• * Low Device Shutdown Current: 3 μA typical

• * 44 μA (non-switching, PFM Mode)

• * Internal Compensation

• * Internal Soft-Start: 300 μs (EN low to high)

• * Peak Current Mode Control

• * Cycle-by-Cycle Peak Current Limit

• * 4.1V typical to start

• * 3.6V typical to stop

• * Overtemperature Protection

• * MSOP-8 or 2x3 TDFN-8 package

Description

The MCP16311 is a compact, high-efficiency, fixed frequency PWM/PFM, synchronous step-down DC-DC converter in a 8-pin MSOP, or 2 x 3 TDFN package that operates from input voltage sources up to 30V. Integrated features include a high-side and a low-side switch, fixed frequency Peak Current Mode Control, internal compensation, peak-current limit and overtemperature protection. The MCP16311 provides all the active functions for local DC-DC conversion, with fast transient response and accurate regulation.