Key facts
- Brand
- Maxim
- Model
- MAX668
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
Start here
Maxim MAX668/MAX669 PWM Step‑Up Controller Datasheet
The MAX668 and MAX669 are constant‑frequency, current‑mode PWM controllers designed for a wide range of DC‑DC conversion topologies, including boost, SEPIC, flyback and isolated output configurations. They operate from a 1.8 V to 28 V input range and feature an adjustable oscillator (100 kHz‑500 kHz), soft‑start, shutdown control and Maxim’s proprietary Idle Mode for high efficiency at light loads.
The datasheet provides absolute maximum ratings, detailed electrical characteristics, pin descriptions, a comparison of the two devices, typical operating curves and package dimensions. Ordering information and contact details for Maxim Integrated Products are also included.
Maxim MAX668 specifications
| Input Voltage Range | 1.8 V to 28 V |
|---|---|
| Shutdown Supply Current (SYNC/SHDN = GND, Vcc = 28 V) | 3.5 µA |
| Oscillator Frequency Range | 100 kHz to 500 kHz |
| Package Type | 10‑pin MAX package |
Source: Maxim MAX668/MAX669 PWM Step‑Up Controller Datasheet
All Maxim MAX668 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the minimum start‑up voltage for the MAX669?
The MAX669 requires a minimum start‑up voltage of 1.8 V.
How many pins does the device package have?
Both devices are available in a 10‑pin MAX package.
What is the minimum start‑up voltage for the MAX669?
The MAX669 is guaranteed to start up at 1.8 V.
What is the shutdown supply current?
The shutdown supply current is 3.5 pA.