MP2307DN
Synchronous Buck ConverterThe MP2307DN is a synchronous buck converter from Monolithic Power Systems. View the full MP2307DN datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
MP2307DN shares its datasheet with MP2307, whose page lists every part number it covers.
Official MP2307DN datasheet (PDF) — the source this page was extracted from.
Manufacturer
Monolithic Power SystemsCategory
Switching Regulators (Buck)MP2307DN Key Specifications
| Parameter | Value |
|---|---|
| Efficiency | Up to 95% |
| Supply Current | 1.3mA typ (1.5mA max) |
| Feedback Voltage | 0.925V (0.9V to 0.95V) |
| Thermal Shutdown | 160°C |
| Soft-Start Period | 15ms with CSS = 0.1µF |
| Maximum Duty Cycle | 90% |
| Input Voltage Range | 4.75V to 23V |
| Peak Output Current | 4A |
| Switching Frequency | 340kHz (300kHz to 380kHz) |
| Input UVLO Threshold | 4.05V typ (rising) |
| Output Voltage Range | 0.925V to 20V |
| Shutdown Supply Current | 0.3µA typ (3µA max) |
| Thermal Resistance θJA | 50°C/W |
| Continuous Output Current | 3A |
| Upper Switch Current Limit | 4A min, 5.8A typ |
| Operating Temperature Range | -40°C to +85°C |
| High-Side/Low-Side Switch RDS(On) | 100mΩ each |
MP2307DN Overview
Part: MP2307 — Monolithic Power Systems, Inc.
Type: Synchronous Rectified Step-Down Converter
Description: 4.75 V to 23 V input, 3 A continuous load current synchronous buck regulator with integrated 100 mΩ MOSFETs and up to 95% efficiency.
Operating Conditions:
- Supply voltage: 4.75 V to 23 V
- Operating temperature: -40°C to +85°C
- Output voltage range: 0.925 V to 20 V
Absolute Maximum Ratings:
- Max supply voltage: 26 V
- Max junction/storage temperature: 150 °C
Key Specs:
- Feedback Voltage: 0.900 V (min), 0.925 V (typ), 0.950 V (max) at 4.75 V ≤ VIN ≤ 23 V
- High-Side Switch On-Resistance: 100 mΩ (typ)
- Low-Side Switch On-Resistance: 100 mΩ (typ)
- Upper Switch Current Limit: 4.0 A (min), 5.8 A (typ) at minimum duty cycle
- Oscillation Frequency: 300 kHz (min), 340 kHz (typ), 380 kHz (max)
- Shutdown Supply Current: 0.3 μA (typ), 3.0 μA (max) at VEN = 0 V
- Quiescent Supply Current: 1.3 mA (typ), 1.5 mA (max) at VEN = 2.0 V, VFB = 1.0 V
- Input Under Voltage Lockout Threshold: 3.80 V (min), 4.05 V (typ), 4.40 V (max) (VIN rising)
Features:
- 3 A continuous output current, 4 A peak output current
- Integrated 100 mΩ power MOSFET switches
- Up to 95% efficiency
- Programmable soft-start
- Cycle-by-cycle over-current protection
- Fixed 340 kHz frequency
- Input under-voltage lockout
- Stable with low-ESR ceramic output capacitors
Applications:
- Distributed power systems
- FPGA, DSP, ASIC power supplies
- Networking systems
- Green electronics/appliances
- Notebook computers
Package:
- 8-pin SOICN with Exposed Pad (SOIC8N)
MP2307DN Features
- 3A Continuous Output Current 4A Peak Output Current
- Wide 4.75V to 23V Operating Input Range
- Output Adjustable from 0.925V to 20V
- Integrated 100m Ω Power MOSFET Switches
- Up to 95% Efficiency
- Programmable Soft-Start
- Stable with Low ESR Ceramic Output Capacitors
- Cycle-by-Cycle Over Current Protection
- Fixed 340KHz Frequency
- Input Under Voltage Lockout
- Thermally Enhanced 8-Pin SOIC Package
MP2307DN Applications
- Distributed Power Systems
- FPGA, DSP, ASIC Power Supplies
- Networking Systems
- Green Electronics/Appliances
- Notebook Computers
'MPS' and 'The Future of Analog IC Technology' are Registered Trademarks of Monolithic Power Systems, Inc.
MP2307_TAC01
MP2307DN Pin Configuration
| Pin # | Name | Description |
|---|---|---|
| 1 | BS | High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel MOSFET switch. Connect a 0.01 μ F or greater capacitor from SW to BS to power the high side switch. |
| 2 | IN | Power Input. IN supplies the power to the IC, as well as the step-down converter switches. Drive IN with a 4.75V to 23V power source. Bypass IN to GND with a suitably large capacitor to eliminate noise on the input to the IC. See Input Capacitor . |
| 3 | SW | Power Switching Output. SW is the switching node that supplies power to the output. Connect the output LC filter from SW to the output load. Note that a capacitor is required from SW to BS to power the high-side switch. |
| 4 | GND | Ground (Connect the exposed pad to Pin 4). |
| 5 | FB | Feedback Input. FB senses the output voltage and regulates it. Drive FB with a resistive voltage divider connected to it from the output voltage. The feedback threshold is 0.925V. See Setting the Output Voltage . |
| 6 | COMP | Compensation Node. COMP is used to compensate the regulation control loop. Connect a series RC network from COMP to GND. In some cases, an additional capacitor from COMP to GND is required. See Compensation Components. |
| 7 | EN | Enable Input. EN is a digital input that turns the regulator on or off. Drive EN high to turn on the regulator; low to turn it off. Attach to IN with a 100k Ω pull up resistor for automatic startup. |
| 8 | SS | Soft-Start Control Input. SS controls the soft-start period. Connect a capacitor from SS to GND to set the soft-start period. A 0.1 μ F capacitor sets the soft-start period to 15ms. To disable the soft-start feature, leave SS unconnected. |
MP2307DN Electrical Characteristics
VIN = 12V, TA = +25°C, unless otherwise noted.
| Parameter | Symbol | Condition | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Shutdown Supply Current | V EN = 0V | 0.3 | 3.0 | μ A | ||
| 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 | ∆ I C = ± 10 μ A | 820 | μ A/V | ||
| High-Side Switch On-Resistance (5) | R DS(ON)1 | 100 | m Ω | |||
| Low-Side Switch On-Resistance (5) | R DS(ON)2 | 100 | m Ω | |||
| High-Side Switch Leakage Current | V EN = 0V, V SW = 0V | 0 | 10 | μ A | ||
| Upper Switch Current Limit | Minimum Duty Cycle | 4.0 | 5.8 | A | ||
| Lower Switch Current Limit | From Drain to Source | 0.9 | A | |||
| 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 |
MP2307DN Absolute Maximum Ratings
Supply Voltage VIN....................... -0.3V to +26V
Switch Voltage VSW................. -1V to VIN + 0.3V
Boost Voltage VBS..........VSW - 0.3V to VSW + 6V
All Other Pins................................. -0.3V to +6V
Junction Temperature...............................150°C
Lead Temperature....................................260°C
Storage Temperature .............-65°C to +150°C
MP2307DN Recommended Operating Conditions
Input Voltage VIN............................ 4.75V to 23V Output Voltage VOUT .................... 0.925V to 20V Ambient Operating Temp .............. -40°C to +85°C
Thermal Resistance (3) θ JA θ JC SOIC8N .................................. 50 ...... 10... ° C/W
MP2307DN Typical Application
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| MP2307 | Monolithic Power Systems | SOIC-8 |
Other Switching Regulators (Buck)
- TPS54302 – Texas Instruments, Synchronous Step-Down Converter
- MAX20730 – Analog Devices, Synchronous Switching Regulator
- TLV62568 – Texas Instruments, Synchronous Buck Converter
- LM2596 – Texas Instruments, Step-Down Voltage Regulator
- TPS562200 – Texas Instruments, Synchronous Buck Converter
- AP63203WU – Diodes Incorporated, Synchronous Buck Converter
- TPS54202 – Texas Instruments, Synchronous Buck Converter
- AP63357DV-7 – Diodes Incorporated, Synchronous Buck Converter
All Switching Regulators (Buck) datasheetsAll Monolithic Power Systems datasheets (40)
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