Linear Technology LT3667
40V 400mA Step-Down Switching Regulator
| Part No. | LT3667 |
|---|---|
| Datasheet | LT3667 Download |
| Manufacturer |  Linear Technology |
| Description | 40V 400mA Step-Down Switching Regulator |
| Buy | Stock & Price |
FEATURES
Triple Output Supply from a Single Input Requires Only One Inductor n I = 50μA at 12V to 5V, 3.3V and 2.5V with No Load Q IN n Buck Regulator: Low Ripple (<15mVP-P) Burst Mode Operation® 400mA Output with Internal Power Switch 4.3V to 40V Input Operation Range (60V Max) n Dual Low Dropout Linear Regulators 200mA Outputs with Programmable Current Limits 1.6V to 45V Input Range Fault Protected to ±45V n Adjustable 250kHz to 2.2MHz Switching Frequency n Synchronizable Between 300kHz and 2.2MHz n Programmable Undervoltage Lockout n Power Good Indicators n Available in a Thermally-Enhanced 16-Lead MSOP and 24-Lead (3mm × 5mm) QFN Packages n LT3667 40V 400mA Step-Down Switching Regulator with Dual Fault Protected LDOsDESCRIPTION
The LT®3667 is a monolithic triple power supply composed of a 400mA buck switching regulator and two 200mA low dropout linear regulators (LDOs). The buck regulator includes a high efficiency switch, a boost diode, and the necessary oscillator, control and logic circuitry.
