LT1616 - 600mA, 1.4MHz Step-Down Switching Regulator in SOT-23
Features
- Wide Input Range: 3.6V to 25V
- 5V at 400mA from7V to 25V Input
- 3.3V at 400mA from 4.7V to 25V Input
- Fixed Frequency 1.4MHz Operation
- Uses Tiny Capacitors and Inductors
- Internally Compensated
- Low Shutdown Current: <1µA
- Low VCESAT Switch: 220mV at 300mA
- Tiny 6-Lead SOT-23 Package
Typical Application
Description
The LT1616 is a current mode PWM step-down DC/DC converter with internal 0.6A power switch, packaged in a tiny 6-lead SOT-23. The wide input range of 3.6V to 25V makes the LT1616 suitable for regulating a wide variety of power sources, from 4-cell batteries and 5V logic rails to unregulated wall transformers and lead-acid batteries. Its high operating frequency allow the use of tiny, low cost inductors and ceramic capacitors. With its internal compensation eliminating additional components, a complete 400mA step-down regulator fits onto 0.15 square inches of PC board area.The constant frequency current mode PWM architecture and stable operation with ceramic capacitors results in lopw, predictable output ripple. Current limiting provides protection against shorted outputs. The low current (<1µA) shutdown provides complete output disconnect, enabling easy power management in battery-powered systems.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
SOT-23
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LT1616ES6 | SOT-23 | 6 | E | $2.36 | View | |
| LT1616ES6#PBF | SOT-23 | 6 | E | $2.36 | View | |
| LT1616ES6#TR | SOT-23 | 6 | E | $2.36 | $2.01 | View |
| LT1616ES6#TRM | SOT-23 | 6 | E | $2.36 | $2.03 | View |
| LT1616ES6#TRMPBF | SOT-23 | 6 | E | $2.36 | $2.03 | View |
| LT1616ES6#TRPBF | SOT-23 | 6 | E | $2.36 | $2.01 | View |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC310B | LT1616ES6 | SOT-23 400mA Step-Down Regulators, 2 Circuits: Small Size/Low Cost, 4.5-16Vin @ 3.3Vout and High Performance, 6.5-25Vin @ 5Vout | Contact Factory | |
| Buy Now | |||
Applications
- Wall Transformer Regulation
- Local Logic Supply Conversion:
12V to 5V
12V or 5V to 3.3V, 2.5V or 1.8V - Battery-Powered Equipement
- Distributed Supply Regulation
- Digital Cameras
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Simulate
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Related models available in LTspice IV
LT1616
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
