Product Summary

The LM3477MM/NOPB is a High Efficiency High-Side N-Channel Controller for Switching Regulator. It can be used in topologies requiring a high side MOSFET such as buck, inverting (buck-boost) and zeta regulators. The LM3477MM/NOPB’s internal push pull driver allows compatibility with a wide range of MOSFETs. This, the wide input voltage range, use of discrete power components and adjustable current limit allows the LM3477MM/NOPB to be optimized for a wide variety of applications. The applications of the LM3477MM/NOPB are (1)Local Voltage Regulation; (2)Distributed Power; (3)Notebook and Palmtop Computers; (4)Internet Appliances; (5)Printers and Office Automation; (6)Battery operated Devices; (7)Cable Modems; (8)Battery Chargers.

Parametrics

LM3477MM/NOPB absolute maximum ratings: (1)Input Voltage: 36V; (2)Peak Driver Output Current (<10μs): 1.0A; (3)CB Pin Voltage: 43V; (4)ISEN Pin Voltage: 500mV; (5)Power Dissipation: Internally Limited; (6)Storage Temperature Range: -65 to +150℃; (7)Junction Temperature: +150℃; (8)ESD Susceptibilty: 200V.

Features

LM3477MM/NOPB features: (1)500kHz switching frequency; (2)Adjustable current limit; (3)1.5% reference; (4)Thermal shutdown; (5)Frequency compensation optimized with a single capacitor and resistor; (6)Internal softstart; (7)Current mode operation; (8)Undervoltage lockout with hysteresis; (9)8-lead Mini-SO8 (MSOP-8) package.

Diagrams

LM3477MM/NOPB block diagram

Image Part No Mfg Description Data Sheet Download Pricing
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LM3477MM/NOPB
LM3477MM/NOPB

National Semiconductor (TI)

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Data Sheet

0-1: $1.15
1-10: $1.03
10-25: $0.92
25-100: $0.62
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(USD)
Quantity
LM34
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LM3401EVAL


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National Semiconductor (TI)

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National Semiconductor (TI)

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0-1: $0.94
1-10: $0.85
10-25: $0.76
25-100: $0.51
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National Semiconductor (TI)

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Data Sheet

0-1: $0.94
1-10: $0.85
10-25: $0.76
25-100: $0.51