Datasheet Linear Technology LTC7800 — Ficha de datos

Fabricante	Linear Technology
Serie	LTC7800

Controlador reductor síncrono de alta frecuencia, bajo coeficiente intelectual, 60V

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PDF, 1.3 Mb, Idioma: en, Archivo subido: jun 14, 2017, Páginas: 32
Low IQ , 60V, High Frequency Synchronous Step-Down Controller

Extracto del documento

Precios

Embalaje

	LTC7800EUDC#PBF	LTC7800EUDC#TRPBF	LTC7800HUDC#PBF	LTC7800HUDC#TRPBF	LTC7800IUDC#PBF	LTC7800IUDC#TRPBF
N	1	2	3	4	5	6
Package	3x4 QFN-20 Dibujo del esquema del paquete	3x4 QFN-20 Dibujo del esquema del paquete	3x4 QFN-20 Dibujo del esquema del paquete	3x4 QFN-20 Dibujo del esquema del paquete	3x4 QFN-20 Dibujo del esquema del paquete	3x4 QFN-20 Dibujo del esquema del paquete
Package Code	UDC	UDC	UDC	UDC	UDC	UDC
Package Index	05-08-1742	05-08-1742	05-08-1742	05-08-1742	05-08-1742	05-08-1742
Pin Count	20	20	20	20	20	20

Paramétricos

Parameters / Models	LTC7800EUDC#PBF	LTC7800EUDC#TRPBF	LTC7800HUDC#PBF	LTC7800HUDC#TRPBF	LTC7800IUDC#PBF	LTC7800IUDC#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC2736A	DC2736A	DC2736A	DC2736A	DC2736A	DC2736A
Design Tools	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model	LTspice Model,LTpowerCAD Model
Export Control	no	no	no	no	no	no
Features	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good	Burst Mode, Resistor Set Frequency, External Synchronization, Power Good
Frequency, kHz	2250	2250	2250	2250	2250	2250
Frequency Adjust Range	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz
Frequency Sync Range	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz	320kHz - 2.25MHz
Integrated Inductor	no	no	no	no	no	no
Ishutdown, µA	14	14	14	14	14	14
Isupply, mA	0.05	0.05	0.05	0.05	0.05	0.05
Monolithic	no	no	no	no	no	no
Number of Outputs	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
Output Current, A	20	20	20	20	20	20
Polyphase	no	no	no	no	no	no
Sense Resistor	DCR, Rsense	DCR, Rsense	DCR, Rsense	DCR, Rsense	DCR, Rsense	DCR, Rsense
Switch Current, A	25	25	25	25	25	25
Synchronous	yes	yes	yes	yes	yes	yes
Topology	Buck	Buck	Buck	Buck	Buck	Buck
Topology 1	Buck	Buck	Buck	Buck	Buck	Buck
Vin Max, V	60	60	60	60	60	60
Vin Min, V	4	4	4	4	4	4
Vin Min Startup, V	4	4	4	4	4	4
Vout Max, V	24	24	24	24	24	24
Vout Maximum	24V	24V	24V	24V	24V	24V
Vout Min, V	0.8	0.8	0.8	0.8	0.8	0.8
Vref Accuracy Over Temp, %	1.5	1.5	1.5	1.5	1.5	1.5

Plan ecológico

	LTC7800EUDC#PBF	LTC7800EUDC#TRPBF	LTC7800HUDC#PBF	LTC7800HUDC#TRPBF	LTC7800IUDC#PBF	LTC7800IUDC#TRPBF
RoHS	Obediente	Obediente	Obediente	Obediente	Obediente	Obediente

Linea modelo

Serie: LTC7800 (6)

LTC7800EUDC#PBF LTC7800EUDC#TRPBF LTC7800HUDC#PBF LTC7800HUDC#TRPBF LTC7800IUDC#PBF LTC7800IUDC#TRPBF

Clasificación del fabricante

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