MCP16311
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.
Features- Up to 95% Efficiency
- Input Voltage Range: 4.4V to 30V
- 1A Output Current Capability
- Output Voltage Range: 2.0V to 24V
- Integrated N-Channel Low and High-Side Switches:
170mΩ, Low Side
300mΩ, High Side
- 170mΩ, Low Side
- 300mΩ, High Side
- Stable Reference Voltage: 0.8V
- Automatic Pulse Frequency Modulation/Pulse-Width Modulation (PFM/PWM) Operation: PWM Operation: 500 kHz
MCP16312 provides PWM-only operation
- MCP16312 provides PWM-only operation
- Low Device Shutdown Current: 3 μA typical
- Low Device Quiescent Current:
44 μA (non-switching, PFM Mode)
- 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
- Undervoltage Lockout (UVLO):
4.1V typical to start
3.6V typical to stop
- 4.1V typical to start
- 3.6V typical to stop
- Overtemperature Protection
- MSOP-8 or 2x3 TDFN-8 package
| Parameter|
Parameter Name
Value
| Value | |
Regulator Type
Step Down (Buck)
|
Step Down (Buck)
| |
# of Outputs
1
|
1
| |
Input Voltage Range Min (V)
4.4
|
4.4
| |
Input Voltage Range Max (V)
30
|
30
| |
Output Voltage Range Min (V)
2
|
2
| |
Output Voltage Range Max (V)
24
|
24
| |
Quiescent Current (mA) typ
0.085
|
0.085
| |
Switching Frequency (kHz)
500
|
500
| |
Synchronous Rectifier
Yes
|
Yes
| |
Operating Temp Range
-40 to 125
|
-40 to 125
| |
Automotive Rated
Yes
|
Yes
| |
Vfb (V)
0.8
|
0.8
| |
Duty Cycle Max (%)
0.94
|
0.94
| |
SHUTDOWN Current (µA) (Typ)
3
|
3
| |
Light Load Efficiency Mode
Yes
|
Yes
|
|
Documents
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| MCP16311-E/MS | 8 | MSOP | -40C to +125C | TUBE | 1.32 | 1.10 | 1.00 | 0.97 | 0.96 |
| MCP16311T-E/MNY | 8 | TDFN | -40C to +125C | T/R | 1.32 | 1.10 | 1.00 | 0.97 | 0.96 |
| MCP16311T-E/MS | 8 | MSOP | -40C to +125C | T/R | 1.21 | 1.01 | 0.92 | 0.89 | 0.88 |
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RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MCP16311T-E/MS | 0.025600 | 0.215600 | 8 | MSOP | 3x3mm | Matte Tin | e3 |  |  |
| MCP16311-E/MS | 0.025600 | 0.070000 | 8 | MSOP | 3x3mm | Matte Tin | e3 | | |
| MCP16311T-E/MNY | 0.014300 | 0.248485 | 8 | TDFN | 2x3x0.8mm | NiPdAu | e4 | | |
| MCP16311T-E/MNYVAO | 0.014300 | 0.248485 | 8 | TDFN | 2x3x0.8mm | NiPdAu | e4 | | |
