MP28257
NOT RECOMMENDED FOR NEW DESIGNS
4A, Fast Transient, 4.2V to 20V Input Synchronous Step-Down Converter
MP28257 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2384GG-Z
アクティブ
MP2384GG-Z
アクティブ
4.5 to 24V, 4A, Low IQ, Synchronous Buck Converter
Features & Benefits
- Wide 4.5V to 24V Operating Input Range
- 105μA Low Quiescent Current
- 4A Continuous Output Current
- Adaptive COT Control for Fast Transient
- DC Auto-Tune Loop
- Low RDS(ON) Internal Power MOSFETs
- Proprietary Switching Loss Reduction Technique
- Power Good (PG) Indication
- Fixed 700kHz Switching Frequency
- Stable with POSCAP and Ceramic Capacitors
- Internal Soft Start (SS)
- Output Discharge
- OCP, OVP, UVP, and Thermal Shutdown with Auto-Retry
- Available in a QFN-11 (2mmx2mm) Package
- The MPL-AL6050 Inductor Series Matches Best Performance
… and many more!
アクティブ部品番号
MP28257DD-LF-P MP28257DD-LF-Z
P&Zの意味
推奨インダクター
Part Number
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
MPL-AL5030-1R8
Low-Profile Molded Inductor 1.8µH
1.8
10.5
8.8
12
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
1.8
10.5
8.8
12
MPL-AY1265-1R8
Molded Inductor 1.8µH
1.8
3.3
20
29
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
1.8
3.3
20
29
MPL-SE6040-1R5
Semi-Shielded Inductor 1.5µH
1.5
11.5
6.8
8.9
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
1.5
11.5
6.8
8.9
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