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LM26389M, LM2639, LM-263CU

Table of contents:
Info of LM26389M
Info of LM2639
Info of LM-263CU

LM26389M, LM2639, LM-263CU Selling Leads, Datasheet

MFG:NSC Package Cooled:SOP D/C:00+

LM26389M, LM2639, LM-263CU Datasheet download

Five Points

Part Number: LM26389M

MFG: NSC

Package Cooled: SOP

D/C: 00+

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LM2639 Parameters

LM2639 Features

Ultra fast load transient response
Enables all surface-mount-design
Selectable 2, 3, 4 phase operation
Clock frequency from 40 kHz to 10 MHz
Precision load current sharing
5-bit programmable from 3.5V to 1.3V
VID code compatible to VRM 8.X specification
Output voltage is 2.0V for VID code 11111
Selectable internal or external clock
Digital 16-step soft start
Input under-voltage lock-out, over-current protection

LM2639 General Description

5-Bit Programmable, High Frequency Multi-phase PWM Controller

LM2639 Maximum Ratings

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V_CC5V.................................................................... 7V
V_CC12V ................................................................20V
Junction Temperature..................................... 125°C
Power Dissipation (Note 2) ................................1.6W
Storage Temperature ..................−65°C to +150°C
ESD Susceptibility (Note 8)................................. 2 kV
Soldering Time, Temperature ............10 sec., 300°C

LM2639 Features

Ultra fast load transient response
Enables all surface-mount-design
Selectable 2, 3, 4 phase operation
Clock frequency from 40 kHz to 10 MHz
Precision load current sharing
5-bit programmable from 3.5V to 1.3V
VID code compatible to VRM 8.X specification
Output voltage is 2.0V for VID code 11111
Selectable internal or external clock
Digital 16-step soft start
Input under-voltage lock-out, over-current protection

LM2639 Typical Application

LM2639 Datasheet

LM2639 Connection Diagram

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