Datasheet Linear Technology LT1934 — Ficha de datos

Fabricante	Linear Technology
Serie	LT1934

Reguladores de conmutación reductores Micropower en ThinSOT

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PDF, 245 Kb, Idioma: en, Archivo subido: sept 3, 2017, Páginas: 20
Micropower Step-Down Switching Regulators in ThinSOT

Extracto del documento

Precios

Embalaje

	LT1934EDCB#PBF	LT1934EDCB#TRMPBF	LT1934EDCB#TRPBF	LT1934ES6#TRMPBF	LT1934ES6#TRPBF	LT1934IDCB#PBF	LT1934IDCB#TRMPBF	LT1934IDCB#TRPBF	LT1934IS6#PBF	LT1934IS6#TRMPBF	LT1934IS6#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11
Package	2x3 DFN-6 Dibujo del esquema del paquete	2x3 DFN-6 Dibujo del esquema del paquete	2x3 DFN-6 Dibujo del esquema del paquete	SOT-23 Dibujo del esquema del paquete	SOT-23 Dibujo del esquema del paquete	2x3 DFN-6 Dibujo del esquema del paquete	2x3 DFN-6 Dibujo del esquema del paquete	2x3 DFN-6 Dibujo del esquema del paquete	SOT-23 Dibujo del esquema del paquete	SOT-23 Dibujo del esquema del paquete	SOT-23 Dibujo del esquema del paquete
Package Code	DCB	DCB	DCB	S6	S6	DCB	DCB	DCB	S6	S6	S6
Package Index	05-08-1715	05-08-1715	05-08-1715	05-08-1636	05-08-1636	05-08-1715	05-08-1715	05-08-1715	05-08-1636	05-08-1636	05-08-1636
Pin Count	6	6	6	6	6	6	6	6	6	6	6

Paramétricos

Parameters / Models	LT1934EDCB#PBF	LT1934EDCB#TRMPBF	LT1934EDCB#TRPBF	LT1934ES6#TRMPBF	LT1934ES6#TRPBF	LT1934IDCB#PBF	LT1934IDCB#TRMPBF	LT1934IDCB#TRPBF	LT1934IS6#PBF	LT1934IS6#TRMPBF	LT1934IS6#TRPBF
Architecture	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode	Constant Off-Time Current Mode
Demo Boards	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A	DC544A
Design Tools	LTspice File	LTspice File	LTspice File	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	no	no	no
Features	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode	Burst Mode
Frequency Adjust Range	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time	Constant Off Time
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
Isupply, mA	0.012	0.012	0.012	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	1	1	1
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current, A	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Polyphase	no	no	no	no	no	no	no	no	no	no	no
Switch Current, A	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
Synchronous	no	no	no	no	no	no	no	no	no	no	no
Topology	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	34	34	34	34	34	34	34	34	34	34	34
Vin Min, V	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.2	3.2
Vout Max, V	28	28	28	28	28	28	28	28	28	28	28
Vout Maximum	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN	.83VIN
Vout Min, V	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25	1.25
Vref Accuracy Over Temp, %	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6	1.6

Plan ecológico

	LT1934EDCB#PBF	LT1934EDCB#TRMPBF	LT1934EDCB#TRPBF	LT1934ES6#TRMPBF	LT1934ES6#TRPBF	LT1934IDCB#PBF	LT1934IDCB#TRMPBF	LT1934IDCB#TRPBF	LT1934IS6#PBF	LT1934IS6#TRMPBF	LT1934IS6#TRPBF
RoHS	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente

Otras opciones

LT1934-1

Artículos

Descargar
Micropower SOT-23 Buck Regulator Accepts Inputs to 34V &mdash LT Journal
PDF, 441 Kb, Archivo publicado: marzo 1, 2003
Extracto del documento
DESIGN FEATURES Micropower SOT-23 Buck Regulator
by Jeff Witt
Accepts Inputs to 34V
Introduction D2 The LT1934 is a micropower buck
regulator with an internal 400mA
power switch. It provides up to 300mA
output current, while consuming
just 12ВµA of quiescent current, an
important feature for always-on battery-powered applications such as
laptop computer standby supplies
or remote instrumentation that must
operate for years from primary batteries. Its wide input voltage range of
3.4V to 34V makes it applicable to
a variety of power sources including
24V industrial supplies, automotive
batteries and unregulated wall transformers. 3.3V 250mA Supply from 24V
Input Consumes Just 15ВµA Figure 1 shows a 3.3V/250mA supply
that accepts inputs from 4.5V to 34V.
With the output in regulation and with
no load, the input current with VIN =
24V is less than 15ВµA. Input current
falls to less than 1ВµA when the LT1934
is placed in shutdown mode by pulling …

Linea modelo

Serie: LT1934 (11)

LT1934EDCB#PBF LT1934EDCB#TRMPBF LT1934EDCB#TRPBF LT1934ES6#TRMPBF LT1934ES6#TRPBF LT1934IDCB#PBF LT1934IDCB#TRMPBF LT1934IDCB#TRPBF LT1934IS6#PBF LT1934IS6#TRMPBF LT1934IS6#TRPBF

Clasificación del fabricante

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Micropower Buck Regulators | Internal Power Switch Buck