LM1771TMM/NOPB Texas Instruments - Yeehing Electronics

Low-Voltage Synchronous Buck Controller with Precision Enable and No External Compensation

Pricing (USD)

Quantity	Unit Price
1 — 99	1.626
100 — 249	1.343
250 — 999	0.965
1,000 +	0.51

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

LM1771TMM/NOPB Datasheet

More Information

The LM1771 device is an efficient synchronous buck switching controller with a precision enable requiring no external compensation. The constant ON-time control scheme provides a simple design free of compensation components, allowing minimal component count and board space. The precision enable pin allows flexibility in sequencing multiple rails and setting UVLO. The LM1771 also incorporates a unique input feedforward to maintain a constant frequency independent of the input voltage. The LM1771 is optimized for a low-voltage input range of 2.8 V to 5.5 V and can provide an adjustable output as low as 0.8 V. Driving an external high-side PFET and low-side NFET, it can provide efficiencies as high as 95%.