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Name: LM46001PWP
Brand: Texas Instruments
SKU: LM46001PWP
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 LM46001PWP

Part No.:: LM46001PWP

Manufacturer:: Texas Instruments

Package:: 16-PowerTSSOP (0.173, 4.40mm Width)

Datasheet:: LM46001PWP.pdf

Description:: IC REG BUCK ADJ 1A 16HTSSOP

In Stock:: 2495

Quantity:: Add To Cart

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LM46001PWP Specifications

Packaging:
Tube
Series:
SIMPLE SWITCHER®
ProductStatus:
Active
Function:
Step-Down
OutputConfiguration:
Positive
Topology:
Buck
OutputType:
Adjustable
NumberofOutputs:
1
Voltage-Input(Min):
3.5V
Voltage-Input(Max):
60V
Voltage-Output(Min/Fixed):
1V
Voltage-Output(Max):
28V
Current-Output:
1A
Frequency-Switching:
200kHz ~ 2.2MHz
SynchronousRectifier:
Yes
OperatingTemperature:
-40°C ~ 125°C (TJ)
MountingType:
Surface Mount

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LM46001PWP information

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LM46001PWP Typical application Circuitry

LM46001PWP

The LM46001PWP is a wide input voltage range, synchronous step-down DC-DC regulator, well-suited for a variety of applications. Here is a detailed guide to connecting this IC in your circuit, focusing on specific pins.

1. Input Voltage (VIN, Pin 1): Hook up this pin to the source voltage, ensuring it falls within the recommended input voltage range. For noise suppression, a ceramic capacitor of about 22uF should be connected very close to this pin and the ground.

2. Switch Node (SW, Pin 6 and Pin 7): These pins connect to the internal switching node of the LM46001PWP. Connect your output inductor here; typically, a 2.2uH to 10uH inductor is used, depending on the output voltage and current.

3. Ground (GND, Pin 4): This is the ground pin for the entire LM46001PWP circuit. To minimize noise and ensure accurate voltage readings, make sure this pin is properly connected to your system's ground plane.

4. Feedback (FB, Pin 9): The voltage feedback loop uses this pin. To control the output voltage level, it is linked to a resistive divider from the output voltage. The resistor values can be determined based on the formulas available in the LM46001PWP datasheet.

5. Enable (EN, Pin 10): This pin serves as the enable/disable control for the LM46001PWP. To activate the regulator, apply a logic high to this pin. To deactivate, apply a logic low.

6. Power Good (PG, Pin 11): The 'Power Good' pin goes high when the output reaches its specified voltage. You can connect this pin to a microcontroller for system monitoring, although this is optional.

7. Soft-Start (SS/TR, Pin 8): The soft-start pin is used to manage the inrush current. The soft-start time may be adjusted by connecting a capacitor between this pin and ground.

8. Bootstrap (BOOT, Pin 5): Connect a small ceramic capacitor (usually 0.1uF) between this pin and the SW pin. This is necessary for the driving of the high-side gate.

9. Adjustable Frequency (RT, Pin 3): A resistor to ground sets the oscillator frequency for the LM46001PWP. The value can be determined based on your application's requirements and the guidelines in the datasheet.

To achieve the best performance from your LM46001PWP, make sure to also follow best practices for PCB layout, particularly concerning thermal management and capacitor placements. Consult the official LM46001PWP datasheet for additional details and application notes.

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6. What is the process for return or replacement of LM46001PWP?

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 LM46001PWP we delivered, we will accept the replacement or return of the LM46001PWP 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 LM46001PWP.

(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