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The MP1652N is a pin-to-pin compatible part with MP1652H.
Slightly differences include: Fsw: 1.1MHz (N-Version) vs 1.2MHz (H-Version) Vin range: 4.5V-16V (N-Version) vs 4.2V-18V (H-Version) Iq: 110uA (N-Version) vs 200uA (H-Version)
Other than the above mentioned, both parts share the same protection features, package, and output current.