The Maxim MAX1652‑MAX1655 family provides high‑efficiency PWM step‑down DC‑DC controllers in compact 16‑pin QSOP and narrow‑SO packages. They support input voltages from 4.5 V to 30 V and deliver up to 10 A with efficiencies as high as 96 %.
Key features include selectable 150 kHz/300 kHz switching frequencies (or external sync), dual N‑channel synchronous‑rectified control, low‑quiescent current (170 µA), and optional secondary output pins for positive or negative voltages.
| Input voltage range | 4.5 V – 30 V |
|---|---|
| Output voltage range | 2.5 V – 5.5 V (1 V for MAX1655) |
| Maximum output current | 10 A |
| Efficiency | up to 96 % |
| Quiescent supply current | 170 µA |
| Switching frequency | 150 kHz / 300 kHz selectable (190 kHz – 340 kHz sync range) |
| Maximum duty cycle | 99 % |
They operate from 4.5 V up to 30 V.
The devices can reach up to 96 % efficiency.
The quiescent supply current is 170 µA.