Key facts
- Brand
- Maxim
- Model
- MAX8546
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH · EN
- Last added
- 2012-04-11
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Maxim MAX8545/MAX8546/MAX8548 Datasheet
The MAX8545, MAX8546 and MAX8548 are voltage‑mode, PWM buck‑converter ICs designed for cost‑sensitive applications. They operate with a wide input range, provide adjustable output down to 0.8 V, and achieve efficiencies up to 95 %. The devices drive low‑cost n‑channel MOSFETs as high‑side switches and synchronous rectifiers without the need for an external sense resistor.
Key features include internal 5 V linear regulation for gate‑drive supplies, soft‑start to limit in‑rush current, input undervoltage lockout, and foldback short‑circuit protection. The ICs are offered in a compact 10‑pin HMAX package and are compatible with standard inductors and electrolytic capacitors. This manual is written in Chinese.
Maxim MAX8546 specifications
| Input voltage range | 2.7 V to 28 V |
|---|---|
| Output voltage range | 0.8 V to 0.83 × VIN |
| Switching frequency | 300 kHz (MAX8545/MAX8546), 100 kHz (MAX8548) |
| Efficiency | up to 95 % |
| Operating temperature range | -40 °C to +85 °C |
| Package | 10‑pin HMAX |
| External sense resistor | Not required |
All Maxim MAX8546 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the input voltage range of the MAX8545/8546/8548 devices?
The devices accept an input voltage from 2.7 V up to 28 V.
What switching frequency does the MAX8545 operate at?
The MAX8545 (and MAX8546) operate at 300 kHz.
What is the input voltage range of the MAX8545/6/8?
The devices operate from 2.7 V to 28 V input.
From: Maxim MAX8545/MAX8546/MAX8548 Step-Down DC-DC Controller Datasheet
What switching frequency does the MAX8545 use?
The MAX8545 (and MAX8546) operate at 300 kHz.
From: Maxim MAX8545/MAX8546/MAX8548 Step-Down DC-DC Controller Datasheet