Datasheet for DC432B:
- Manufacturer Part Number : DC432B
- Manufacturer : AD
- Description : Dual Constant Frequency Current Mode Step-Down DC/DC Controller IC
- Series : LTC1874
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Step-Down (Buck) Regulators
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : LTC1875EGN | High Efficiency Synchronous Step-Down Regulator, 2.65V - 6V Input, 1.8V/2.5V/3.3Vout @ 1.5A
- Pins : -
- MFG Package Case : -
- Part Type : EVAL
- Standard Packing Type : -
- Standard Packing Quantity : -
- Working Temperature : -
- Other Part Number : DC432B
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC1874 is a dual constant frequency current mode step-down DC/DC controller with excellent AC and DC load and line regulation. Each controller has an accurate undervoltage lockout that shuts down the individual controller when the input voltage falls below 2.0V.
The LTC1874 boasts ±2.5% output voltage accuracy and consumes only 270µA of quiescent current per controller. The LTC1874 is configured with Burst Mode operation, which enhances efficiency at low output current for applications where efficiency is a prime consideration.
To further maximize the life of a battery source, each external P-channel MOSFET is turned on continuously in dropout (100% duty cycle). In shutdown, each controller draws a mere 8µA. High constant operating frequency of 550kHz allows the use of small external inductors.
The LTC1874 is available in a small footprint 16-lead narrow SSOP.
Applications
- 1- or 2-Cell Lithium-Ion-Powered Applications
- Distributed 3.3V, 2.5V or 1.8V Power Systems
- Personal Information Appliances
- Portable Computers
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
