-
Description
The R1280D002B-TR is a 2-channel PWM Step-up/Inverting DC/DC converter controller with a CMOS process. It consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. This IC can be used to compose a high-efficiency Step-up/Inverting DC/DC converter with additional components such as inductors, diodes, power MOSFETs, resistors, and capacitors. The output voltage can be adjusted with external resistors, and the soft-start time can be adjusted with external capacitors.
Specifications and features
- Input Voltage Range: 2.5V to 5.5V
- Built-in Latch-type Protection Function by monitoring duty cycle (Fixed Delay Time TYP. 100ms)
- Oscillator Frequency: 700kHz (R1280D002A, B), 200kHz (R1280D002C)
- Maximum Duty Cycle: TYP. 90% (Only applied to R1280D002B Series)
- High Reference Voltage Accuracy: ±1.5%
- U.V.L.O. Threshold: TYP. 2.2V (Hysteresis: TYP. 0.1V)
- Small Package: thin SON-10 (package thickness MAX. 0.9mm)
Application Scenarios
- Constant Voltage Power Source for portable equipment
- Constant Voltage Power Source for LCD and CCD
Comparison
Advantages- High efficiency
- Adjustable output voltage
- Adjustable soft-start time
Disadvantages- Limited to 2-channel PWM Step-up/Inverting DC/DC conversion
- Requires additional components for operation
-
Similar parts: 430483 , Click to view
-
Datasheet
-
Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
- View more
Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
- View more
-
Popular parts of the same kind
Additional Information
- Datasheet: Download R1280D002B-TR
- Chipdatas Part: CD94-R1280D002B-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 08:56 +0800
Refund
-
- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
Related Products
Payment Method
-
The fee is charged according to the rule of PayPal.
-
The fee is charged according to the rule of PayPal.
-
Western Union charge US$0.00 banking fee.
-
We recommend to use bank transfer for large orders to save on handling fees.
Shipping Tips
-
DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
$40 limited time offer. -
FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.