-
Description
The R1221N38AH-TR is a DC/DC Converter controller embedded with a voltage detector and equipped with a low supply current by CMOS process which belongs to the IC Chips category. It can be composed of a low ripple, high efficiency step-down DC/DC converter with only four external components or a power transistor, an inductor, a diode, and a capacitor. The output voltage of the DC/DC converter can be supervised by the embedded voltage detector. With a PWM/VFM alternative circuit and an option for C version and D version, this model can improve the efficiency at small load currents.
Specifications and features
- Wide Range of Input Voltage: 2.3V to 13.2V
- Built-in Soft-start Function and two choices of Protection Function(Latch-type or Reset-type)
- Two choices of Oscillator Frequency: 300kHz, 500kHz
- High Efficiency: TYP. 90%
- Standby Current: TYP. 0µA
- Setting Output Voltage: Stepwise setting with a step of 0.1V in the range of 1.5V to 5.0V
- High Accuracy Output Voltage: ±2.0%
- Setting Detector Threshold Voltage: Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V
- High Accuracy Detector Threshold Voltage: ±2.0%
- Low Temperature-Drift Coefficient of Output Voltage: TYP. ±100ppm/°C
Application Scenarios
- Power source for hand-held communication equipment, cameras, video instruments such as VCRs, camcorders.
- Power source for battery-powered equipment.
- Power source for household electrical appliances.
Comparison
Advantages- Wide range of input voltage from 2.3V to 13.2V.
- Built-in soft-start function and two choices of protection function (Latch-type or Reset-type).
- High Accuracy Detector Threshold Voltage: ±2.0%.
- Low temperature-drift coefficient of output voltage: TYP. ±100ppm/°C.
Disadvantages- Only two choices of oscillator frequency available: 300kHz, 500kHz.
-
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 R1221N38AH-TR
- Chipdatas Part: CD88-R1221N38AH-TR
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/10/01 08:44 +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.