National Semiconductor

Ref. [hkinnationalsemiconductor20220620][hkinbrandcloudAMpd]

National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California, United States. The company produced power management integrated circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions. National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial and test and measurement applications.

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Description

IC REG CTRLR BUCK PWM VM 28TSSOP Series: - Applications: Number of Outputs: 2 Frequency - Max: 500kHz Voltage - Input: Duty Cycle: 0.7 Voltage - Output: Voltage - Supply: 4.5 V ~ 28 V Buck: Yes Boost: No Mounting Type: Flyback: No Inverting: No Doubler: No Divider: No Cuk: No Isolated: No Operating Temperature: -40~C ~ 125~C Package / Case: 28-TSSOP (0.173, 4.40mm Width) Supplier Device Package: 28-TSSOP

Part Number LM2657MTC/NOPB
Main Category Integrated Circuits (ICs)
Sub Category PMIC - Voltage Regulators - DC DC Switching Controllers
Brand National Semiconductor
Description IC REG CTRLR BUCK 28TSSOP
Series -
Packaging Tube
Output Type Transistor Driver
Function Step-Down
Output Configuration Positive
Topology Buck
Number of Outputs 2
Output Phases 2
Voltage - Supply (Vcc/Vdd) 4.5 V ~ 28 V
Frequency - Switching 200kHz ~ 500kHz
Duty Cycle (Max) 70%
Synchronous Rectifier Yes
Clock Sync No
Serial Interfaces -
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start
Operating Temperature -40°C ~ 125°C (TJ)
Package / Case 28-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 28-TSSOP
Image Integrated Circuits (ICs)
Lowest Price: $0.64   Highest Price: $4.17
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Part Number:

LM2657MTC/NOPB

Brand:

NS

D/C:
Qty:

500

Price (USD):

0.64

Company:

HK HEQING ELECTRONICS LIMITED

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Part Number:

LM2657MTC/NOPB

Brand:

NS/

D/C:
21+
Qty:

5000

Price (USD):

1.5225

Company:

HITO TECHNOLOGY LIMITED

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Part Number:

LM2657MTC/NOPB

Brand:

NATIONAL

D/C:
21+
Qty:

3000

Price (USD):

2.405

Company:

HONG KONG YUE JIN PENG ELECTRONICS CO.

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Part Number:

LM2657MTC/NOPB

Brand:

National Semiconductor??TI ??

D/C:
Qty:

5703

Price (USD):

3.2875

Company:

ATLANTIC TECHNOLOGY LIMITED

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Part Number:

LM2657MTC/NOPB

Brand:

National Semiconductor¡]TI ¡^

D/C:
21+
Qty:

5998

Price (USD):

4.17

Company:

Y.H.X ELECTRONIC TECHNOLOGY HK LIMITED

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LM2657MTCNOPB Ref.

[hkinnationalsemiconductor20220620][hkinbrandcloudAMpd]
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