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Name: LM2775DSGR
Brand: Texas Instruments
SKU: LM2775DSGR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments LM2775DSGR

Part No.:: LM2775DSGR

Manufacturer:: Texas Instruments

Package:: 8-WFDFN Exposed Pad

Datasheet:: LM2775DSGR.pdf

Description:: IC REG CHARG PUMP 5V 200MA 8WSON

In Stock:: 19713

Quantity:: Add To Cart

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LM2775DSGR Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Function:
Step-Up
OutputConfiguration:
Positive
Topology:
Charge Pump
OutputType:
Fixed
NumberofOutputs:
1
Voltage-Input(Min):
2.7V
Voltage-Input(Max):
5.5V
Voltage-Output(Min/Fixed):
5V
Voltage-Output(Max):
-
Current-Output:
200mA
Frequency-Switching:
2MHz
SynchronousRectifier:
No
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

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LM2775DSGR information

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LM2775DSGR Typical application Circuitry

LM2775DSGR

The LM2775DSGR is part of the LM2775 series of switched capacitor charge pump voltage converters designed by Texas Instruments. These devices are particularly useful for applications requiring voltage inversion from a positive power supply, delivering a regulated negative output voltage with minimal external components and board space.

1. VIN (Voltage Input): The source of the positive input voltage must be connected to this pin. A small ceramic bypass capacitor is typically placed between VIN and GND to provide local decoupling.

2. GND (Ground): The circuit's ground reference is represented by this pin. The system ground plane has to be linked to it.

3. VOUT (Voltage Output): The output pin provides the regulated negative voltage. A capacitor should be connected from VOUT to GND to stabilize the output voltage and minimize voltage ripple.

4. FLY (Flying Capacitor Positive Terminal): The flying capacitor's single terminal is connected to this pin. The FLY− pin is linked to the flying capacitor's other terminal.

5. FLY− (Flying Capacitor Negative Terminal): The flying capacitor's other terminal is connected to this pin. The flying capacitor switches between VIN and VOUT to generate the negative voltage.

6. C1+ (Reservoir Capacitor Positive Terminal): This pin should be connected to one terminal of the reservoir capacitor, which helps smooth the charge pump current.

7. C1− (Reservoir Capacitor Negative Terminal): This pin connects to the other terminal of the reservoir capacitor.

When laying out the PCB for the LM2775DSGR, it's essential to follow the datasheet's guidelines for capacitor values and placement to ensure optimal performance. The layout should minimize trace lengths between pins and capacitors to reduce resistance and inductance in the charge pump path. Additionally, the layout should provide good thermal management to dissipate heat effectively, as the device can generate heat during operation. Adherence to these design principles will ensure that the LM2775DSGR functions effectively as a negative voltage converter in your application.

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6. What is the process for return or replacement of LM2775DSGR?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LM2775DSGR we delivered, we will accept the replacement or return of the LM2775DSGR only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of LM2775DSGR.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations