Datasheet Linear Technology LTC3639

Manufacturer	Linear Technology
Series	LTC3639

High Efficiency, 150V 100mA Synchronous Step-Down Regulator

Datasheets

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PDF, 294 Kb, Language: en, File uploaded: Sep 22, 2017, Pages: 26
High Efficiency, 150V 100mA Synchronous Step-Down Regulator

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Packaging

	LTC3639EMSE#PBF	LTC3639EMSE#TRPBF	LTC3639HMSE#PBF	LTC3639HMSE#TRPBF	LTC3639IMSE#PBF	LTC3639IMSE#TRPBF	LTC3639MPMSE#PBF	LTC3639MPMSE#TRPBF
N	1	2	3	4	5	6	7	8
Package	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing	MS-16E Package Outline Drawing
Package Code	MSE	MSE	MSE	MSE	MSE	MSE	MSE	MSE
Package Index	05-08-1871	05-08-1871	05-08-1871	05-08-1871	05-08-1871	05-08-1871	05-08-1871	05-08-1871
Pin Count	16	16	16	16	16	16	16	16

Parametrics

Parameters / Models	LTC3639EMSE#PBF	LTC3639EMSE#TRPBF	LTC3639HMSE#PBF	LTC3639HMSE#TRPBF	LTC3639IMSE#PBF	LTC3639IMSE#TRPBF	LTC3639MPMSE#PBF	LTC3639MPMSE#TRPBF
Architecture	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control	Hysteretic Mode Control
Demo Boards	DC1901A	DC1901A	DC1901A	DC1901A	DC1901A	DC1901A	DC1901A	DC1901A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no
Features	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle	Burst Mode, Fixed Output, 100% Duty Cycle
Integrated Inductor	no	no	no	no	no	no	no	no
Ishutdown, µA	1.4	1.4	1.4	1.4	1.4	1.4	1.4	1.4
Isupply, mA	0.012	0.012	0.012	0.012	0.012	0.012	0.012	0.012
Max Phases	1	1	1	1	1	1	1	1
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	-40 to 125	-40 to 125	-40 to 85	-40 to 85	-55 to 125	-55 to 125
Output Current, A	0.1	0.1	0.1	0.1	0.1	0.1	0.1	0.1
Polyphase	no	no	no	no	no	no	no	no
Switch Current, A	0.23	0.23	0.23	0.23	0.23	0.23	0.23	0.23
Synchronous	yes	yes	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	150	150	150	150	150	150	150	150
Vin Min, V	4	4	4	4	4	4	4	4
Vout Max, V	150	150	150	150	150	150	150	150
Vout Maximum	Vin	Vin	Vin	Vin	Vin	Vin	Vin	Vin
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
Vref Accuracy Over Temp, %	1	1	1	1	1	1	1	1

Eco Plan

	LTC3639EMSE#PBF	LTC3639EMSE#TRPBF	LTC3639HMSE#PBF	LTC3639HMSE#TRPBF	LTC3639IMSE#PBF	LTC3639IMSE#TRPBF	LTC3639MPMSE#PBF	LTC3639MPMSE#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Design Notes

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High Efficiency 100mA Synchronous Buck Converter with Wide Input Range from 4V to 150V &mdash DN532
PDF, 238 Kb, File published: Sep 17, 2014
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High Efficiency 100mA Synchronous Buck Converter with
Wide Input Range from 4V to 150V
Design Note 532
Charlie Zhao
4V to 150V Input to 3.3V Output,
100mA Buck Converter
Figure 1 shows a 3.3V output, 100mA maximum
load current synchronous buck converter, with wide
input range from 4V to 150V. The LTC3639 has three
programmable fixed output voltages 1.8V, 3.3V and
5V. These fixed outputs use an internal feedback
resistor divider and can be simply selected with the
VPRG1 and VPRG2 pins. For 3.3V output, just connect
VPRG1 to ground and tie VPRG2 to the SS pin. The VFB
pin is directly connected to the output without using
an external resistor divider. Efficiency curves with
different input voltages are shown in Figure 2. Introduction
The wide 4V to 150V input range of the LTC В®3639 stepdown DC/DC converter allows automotive, avionics
and distributed power systems to: Cover extensive transient requirements Enable multiple wide-ranging input power sources,
such as a high voltage DC bus with a low voltage
battery backup Create a universal power supply to cover a variety
of input sources, thereby reducing inventory and
the cost of design and manufacture …

Model Line

Series: LTC3639 (8)

LTC3639EMSE#PBF LTC3639EMSE#TRPBF LTC3639HMSE#PBF LTC3639HMSE#TRPBF LTC3639IMSE#PBF LTC3639IMSE#TRPBF LTC3639MPMSE#PBF LTC3639MPMSE#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck | High Input Voltage Buck
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators