MP28258-A
NOT RECOMMENDED FOR NEW DESIGNS
3A, 4.2V to 20V, COT, Sync Step-Down Converter with Hiccup OCP and Programmable Frequency in 2x3mm QFN
MP28258-A continues to be in production for existing customers. Please consider this alternative for new designs:
MP2330HGTL-Z
Active
MP2330HGTL-Z
Active
24V, 3A, 1.2MHz, Synchronous Buck Converter
Features & Benefits
- Wide 4.2V to 24V Operating Input Range
- 75mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs
- 200µA Low IQ
- High-Efficiency Synchronous Mode Operation
- Fast Load Transient Response
- 1.2MHz Switching Frequency
- TON Extension
- Forced PWM Operation
- Programmable Soft-Start Time
- Power Good (PG) Indication
- Over-Current Protection (OCP) and Hiccup
- Pre-Bias Start-Up
- Thermal Shutdown
- Available in a SOT583 (1.6mmx2.1mm) Package
… and many more!
Active Part Numbers:
MP28258DD-Z MP28258DD-P MP28258DD-LF-Z MP28258DD-LF-P
Meaning of P & Z 
Recommended Inductors
Part Number
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
MPL-AY3020-2R2
Molded Inductor 2.2µH
2.2
64
3.0
5.3
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
2.2
64
3.0
5.3
MPL-SE4030-2R2
Semi-Shielded Inductor 2.2µH
2.2
30
3.9
5.5
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
2.2
30
3.9
5.5
MPL-SE5040-2R2
Semi-Shielded Inductor 2.2µH
2.2
16
5.4
7.9
L (µH)
RDC (typ) (mΩ)
IR (40K) (A)
Isat (30%) (A)
2.2
16
5.4
7.9
Show more
*Based on Nominal Values
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