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LT1937ESC6
LT1937ESC6 - Brand New Analog Devices / Linear Technology IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
DESCRIPTION
The LT ®1937 is a step-up DC/DC converter specifically designed to drive white
LEDs with a constant current. The device can drive two, three or four LEDs in
series from a Li-Ion cell. Series connection of the LEDs provides identical
LED currents resulting in uniform brightness and eliminating the need for
ballast resistors. The LT1937 switches at 1.2MHz, allowing the use of tiny
external components. The output capacitor can be as small as 0.22µF, saving
space and cost versus alternative solutions. A low 95mV feedback voltage
minimizes power loss in the current setting resistor for better efficiency.
The LT1937 is available in low profile SC70 and ThinSOT packages.
FEATURES
■ Inherently Matched LED Current
■ High Efficiency: 84% Typical
■ Drives Up to Four LEDs from a 3.2V Supply
■ Drives Up to Six LEDs from a 5V Supply
■ 36V Rugged Bipolar Switch
■ Fast 1.2MHz Switching Frequency
■ Uses Tiny 1mm Tall Inductors
■ Requires Only 0.22µF Output Capacitor
■ Low Profile SC70 and ThinSOTTM Packaging
APPLICATIONS
■ Cellular Phones
■ PDAs, Handheld Computers
■ Digital Cameras
■ MP3 Players
■ GPS Receivers
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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