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UPC1933GR Datasheet

  • UPC1933GR

  • DC-DC CONVERTER CONTROL IC

  • 20頁

  • NEC   NEC

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DATA SHEET
BiCMOS INTEGRATED CIRCUIT
碌
PC1933
DC-DC CONVERTER CONTROL IC
DESCRIPTION
The
碌
PC1933 is an IC that controls a low-voltage input DC-DC converter. This IC is suitable for an operation with3-V,
3.3-V input or a lithium ion secondary battery input, because the minimum operating supply voltage is 2.5 V.
Because of its wide operating voltage range, it can also be used to control DC-DC converters that use an AC adapter for
input.
FEATURES
鈥?/div>
Low supply voltage: 2.5 V (MIN.)
鈥?/div>
Operating voltage range: 2.5 to 20 V (breakdown voltage: 30 V)
鈥?/div>
Timer latch circuit for short-circuit protection.
鈥?/div>
Ceramic capacitor with low capacitance (0.1
碌
F) can be used for short-circuit protection.
鈥?/div>
Open drain output (1 cannel: This output can be used to control a step-down converter, a step-up converter.)
鈥?/div>
Dead time is internally fixed to 85 %.
鈥?/div>
Soft start function (with a circuit to convert the timer latch circuit.)
ORDERING INFORMATION
Part Number
Package
8-pin plastic SOP (5.72 mm (225))
碌
PC1933GR
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G13690EJ3V0DS00 (3rd edition)
Date Published April 2000 NS CP (K)
Printed in Japan
The mark
5
shows major revised points.
1998

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