Datasheet Linear Technology LT1931

Manufacturer	Linear Technology
Series	LT1931

1.2MHz/2.2MHz Inverting DC/DC Converters in ThinSOT

Datasheets

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PDF, 459 Kb, Language: en, File uploaded: Sep 3, 2017, Pages: 12
1.2MHz/2.2MHz Inverting DC/DC Converters in ThinSOT

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Packaging

	LT1931ES5#PBF	LT1931ES5#TRMPBF	LT1931ES5#TRPBF	LT1931IS5#PBF	LT1931IS5#TRMPBF	LT1931IS5#TRPBF
N	1	2	3	4	5	6
Package	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing
Package Code	S5	S5	S5	S5	S5	S5
Package Index	05-08-1635	05-08-1635	05-08-1635	05-08-1635	05-08-1635	05-08-1635
Pin Count	5	5	5	5	5	5

Parametrics

Parameters / Models	LT1931ES5#PBF	LT1931ES5#TRMPBF	LT1931ES5#TRPBF	LT1931IS5#PBF	LT1931IS5#TRMPBF	LT1931IS5#TRPBF
Demo Boards	DC397A,DC383B	DC397A,DC383B	DC397A,DC383B	DC397A,DC383B	DC397A,DC383B	DC397A,DC383B
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no
Frequency, kHz	1200	1200	1200	1200	1200	1200
Integrated Inductor	no	no	no	no	no	no
Ishutdown, µA	0.01	0.01	0.01	0.01	0.01	0.01
Isupply, mA	4.2	4.2	4.2	4.2	4.2	4.2
Monolithic	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85
Polyphase	no	no	no	no	no	no
Switch Current, A	1.2	1.2	1.2	1.2	1.2	1.2
Synchronous	no	no	no	no	no	no
Topology	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting
Topology 1	Inverting	Inverting	Inverting	Inverting	Inverting	Inverting
Vin Max, V	16	16	16	16	16	16
Vin Min, V	2.6	2.6	2.6	2.6	2.6	2.6
Vout Max, V	34	34	34	34	34	34
Vswitch Max, V	36	36	36	36	36	36

Eco Plan

	LT1931ES5#PBF	LT1931ES5#TRMPBF	LT1931ES5#TRPBF	LT1931IS5#PBF	LT1931IS5#TRMPBF	LT1931IS5#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

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Articles

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Inverting Switching Regulator Delivers High Current/Low Noise Outputs in a SOT-23 &mdash LT Journal
PDF, 315 Kb, File published: Sep 1, 2000
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DESIGN FEATURES Inverting Switching Regulator Delivers
High Current/Low Noise Outputs
in a SOT-23
by Albert Wu
Introduction
The LT1931 is the industryвЂ™s highest
power SOT-23 inverting switching
regulator. The on-chip 1A switch
allows high output currents to be
generated. In a typical 5V to вЂ“5V
application, the part can deliver
350mA; a 5V to вЂ“12V application can
provide 150mA. The LT1931 switches
at a fixed frequency of 1.2MHz, allowing the use of tiny, low cost capacitors
and inductors of 2mm or less in height.
The constant switching frequency
keeps the output voltage noise low
and predictable, making designs with
output voltage ripple less than 5mVP-P
easily achievable. An integrated shutdown feature limits the supply current
to less then 1ВµA when the part is
disabled, extending battery life. The
high power and low noise LT1931 …

Model Line

Series: LT1931 (6)

LT1931ES5#PBF LT1931ES5#TRMPBF LT1931ES5#TRPBF LT1931IS5#PBF LT1931IS5#TRMPBF LT1931IS5#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Inverting Regulators | LCD/CCD/OLED Bias

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