Datasheet for DC1802A:
- Manufacturer Part Number : DC1802A
- Manufacturer : AD
- Description : 3.3V/2.5V Step-Up/Step-Down Charge Pump DC/DC Converter IC
- Series : LTC3240
- Reference Price : USD 0
- Our Price : We have a better price, contact us by email
- Product Type : Inductorless (Charge Pump) DC/DC Converters
- Function : Regulated Step-Up Charge Pumps
- Current Suggest : Production
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : LTC3245EMSE Demo Board | Buck-Boost Charge Pump, 2.7V = VIN = 38V, Vout = 1.2V/3.3V/5V @ 250mA
- Pins : -
- MFG Package Case : -
- Part Type : EVAL
- Standard Packing Type : -
- Standard Packing Quantity : -
- Working Temperature : -
- Other Part Number : DC1802A
- 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 LTC3240-3.3/LTC3240-2.5 are step-up/step-down charge pump DC/DC converters that produce a fixed regulated output voltage of 3.3V or 2.5V over a wide input voltage range (1.8V to 5.5V).
With input voltages greater than the regulated output voltage the LTC3240 operates as a low dropout regulator. Once the input voltage drops within 100mV of the regulated output voltage the part automatically switches to step-up mode. In step-up mode the LTC3240 operates as a constant frequency (1.2MHz) doubling charge pump.
The LTC3240-3.3/LTC3240-2.5 feature low no load operating current (65µA typical) and ultralow operating current in shutdown (<1µA). Built-in soft-start circuitry prevents excessive inrush current during start-up. Thermal shutdown and current-limit circuitry allow the parts to survive a continuous short-circuit from VOUT to GND.
The LTC3240-3.3/LTC3240-2.5 require only three tiny external ceramic capacitors for an ultrasmall application footprint. The LTC3240-3.3/LTC3240-2.5 are available in a 6-pin (2mm × 2mm) DFN package.
Applications
- 2 AA to 2.5V
- 2-3 AA/Li-Ion to 3.3V
- Low Power Supplies for Cameras, I/O Supplies, Audio, PC Cards, Misc. Logic, etc., in a Wide Variety of Handheld Products
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.
