MP2307DN-LF-Z

3A, 23V, 340KHz Synchronous Rectified Step-Down Converter

Synchronous Buck Converter

The MP2307DN-LF-Z is a synchronous buck converter from Monolithic Power Systems, Inc.. 3A, 23V, 340KHz Synchronous Rectified Step-Down Converter. View the full MP2307DN-LF-Z datasheet below including electrical characteristics.

Manufacturer

Monolithic Power Systems, Inc.

Overview

Part: MP2307 from Monolithic Power Systems (MPS)

Type: Synchronous Buck Converter

Description: A 4.75–23 V input, 3 A synchronous buck regulator with integrated 100mΩ MOSFETs, 340 KHz fixed switching frequency, and up to 95% efficiency.

Operating Conditions:

Supply voltage: 4.75V to 23V
Output voltage range: 0.925V to 20V
Fixed switching frequency: 340 KHz

Absolute Maximum Ratings:

Max junction temperature (Thermal Shutdown): 160 °C

Key Specs:

Feedback Voltage (V_FB): 0.925 V (Typ, 4.75V ≤ V_IN ≤ 23V)
High-Side Switch On-Resistance (R_DS(ON)1): 100 mΩ (Typ)
Low-Side Switch On-Resistance (R_DS(ON)2): 100 mΩ (Typ)
Upper Switch Current Limit: 4.0 A (Min)
Oscillation Frequency (F_osc1): 340 KHz (Typ, 300 KHz Min, 380 KHz Max)
Maximum Duty Cycle (D_MAX): 90 % (Typ)
Input Under Voltage Lockout Threshold: 4.05 V (Typ, 3.80 V Min, 4.40 V Max)
Shutdown Supply Current: 0.3 μA (Typ, V_EN = 0V)

Features:

3A Continuous Output Current
4A Peak Output Current
Wide 4.75V to 23V Operating Input Range
Integrated 100mΩ Power MOSFET Switches
Output Adjustable from 0.925V to 20V
Up to 95% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 340KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
Thermally Enhanced 8-Pin SOIC Package

Applications:

Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/Appliances
Notebook Computers

Package:

8-pin SOIC

Features

3A Continuous Output Current 4A Peak Output Current
Wide 4.75V to 23V Operating Input Range
Integrated 100mΩ Power MOSFET Switches
Output Adjustable from 0.925V to 20V
Up to 95% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 340KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
Thermally Enhanced 8-Pin SOIC Package

Applications

Distributed Power Systems
Networking Systems
FPGA, DSP, ASIC Power Supplies
Green Electronics/Appliances
Notebook Computers

"MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.

Pin Configuration

Board Number	Dimensions
EV2307DN-00A	2.0" X 1.5" Y X 0.5"Z

OPERATION

Electrical Characteristics

V_IN = 12V, T_A = +25°C, unless otherwise noted.

Parameter Symbol Cond		Condition	Min	Typ	Max	Units
Shutdown Supply Current		V _EN = 0V		0.3	3.0	μA
Supply Current		V_EN = 2.0V, V_FB = 1.0V		1.3	1.5	mA
Feedback Voltage	V_FB	4.75V ≤ V_IN ≤ 23V	0.900	0.925	0.950	V
Feedback Overvoltage Threshold				1.1		V
Error Amplifier Voltage Gain (5)	A _EA			400		V/V
Error Amplifier Transconductance	G _EA	Δ I_C = ± 10 μ A		820		μA/V
High-Side Switch On-Resistance (5)	R _DS(ON)1			100		mΩ
Low-Side Switch On-Resistance (5)	R _DS(ON)2	•		100		mΩ
High-Side Switch Leakage Current		V_EN = 0V , V_SW = 0V		0	10	μA
Upper Switch Current Limit		Minimum Duty Cycle	4.0	5.8		Α
Lower Switch Current Limit		From Drain to Source		0.9		Α
COMP to Current Sense Transconductance	G _CS			5.2		A/V
Oscillation Frequency	F _osc1		300	340	380	KHz
Short Circuit Oscillation Frequency	F _osc2	V _FB = 0V		110		KHz
Maximum Duty Cycle	D_MAX	V _FB = 1.0V		90		%
Minimum On Time (5)	T _ON			220		ns
EN Shutdown Threshold Voltage		V _EN Rising	1.1	1.5	2.0	V
EN Shutdown Threshold Voltage Hysterisis				220		mV

Typical Application

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
MP2307	Monolithic Power Systems, Inc.	SOIC-8
MP2307DN-Z	Monolithic Power Systems, Inc.	SOIC-8

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