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L6997STR
L6997STR - Brand New STMicroelectronics DC DC Switching Controllers
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 device is a high efficient solution for networking dc/dc modules and
mobile applications compatible with 3.3V bus and 5V bus.
Its able to regulate an output voltage as low as 0.6V. The constant on time
topology assures fast load transient response. The embedded voltage feed-
forward provides nearly constant switching frequency operation in spite of a
wide input voltage range. An integrator can be introduced in the control loop
to reduce the static output voltage error.
The remote sensing improves the static and dynamic regulation, recovering the
wires voltage drop.
Pulse skipping technique reduces power consump tion at light loads. Drivers
current capability allows output currents in excess of 20A.
Features
■ FROM 3V TO 5.5V VCC RANGE
■ MINIMUM OUTPUT VOLTAGE AS LOW AS 0.6V
■ 1V TO 35V INPUT VOLTAGE RANGE
■ CONSTANT ON TIME TOPOLOGY
■ VERY FAST LOAD TRANSIENTS
■ 0.6V, ±1% VREF
■ SELECTABLE SINKING MODE
■ LOSSLESS CURRENT LIMIT, AVAILABLE ALSO IN SINKING MODE
■ REMOTE SENSING
■ OVP,UVP LATCHED PROTECTIONS
■ 600µA TYP QUIESCENT CURRENT
■ POWER GOOD AND OVP SIGNALS
■ PULSE SKIPPING AT LIGTH LOADS
■ 94% EFFICIENCY FROM 3.3V TO 2.5V
Applications
■ NETWORKING
■ DC/DC MODULES
■ DISTRIBUTED POWER
■ MOBILE APPLICATIONS
■ CHIP SET, CPU, DSP AND MEMORIES SUPPLY
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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