DataSheet.es    


PDF US3036CS Data sheet ( Hoja de datos )

Número de pieza US3036CS
Descripción 8 PIN PWM SWITCHER CONTROLLER IC
Fabricantes UNISEM 
Logotipo UNISEM Logotipo



Hay una vista previa y un enlace de descarga de US3036CS (archivo pdf) en la parte inferior de esta página.


Total 7 Páginas

No Preview Available ! US3036CS Hoja de datos, Descripción, Manual

US3036
FEATURES
8 pin SOIC Switching Controller with
HICCUP Current Limiting Reduces Diode Power
Dissipation to Less than 1% of Normal Opera-
tion
Soft Start Capacitor allows for smooth Output
Voltage ramp up
On board MOSFET driver
Fastest transient response of any controller
method. ( 0 to 100% Duty Cycle in 100 nS )
1% internal voltage reference
Internal Under Voltage Lockout protects
MOSFET during start-up
APPLICATIONS
Single input Switching Regulators such as Simple
5V to 2.5V switcher for RDRAM regulator
8 PIN PWM SWITCHER
DESCRIPTION
CONTROLLER IC
PRELIMINARY DATASHEET
The US3036 IC provides an 8 pin low cost switching
controller with true short circuit protection all in a
compact 8 pin surface mount package, providing a
low cost switching solution for applications that re-
quire a simple switching regulator from the 5V input where
there is no other supply available. One type of such
application is generating 2.5V standby from the dual
5V(5V and 5V standby) for the next generation proces-
sors. The IC starts below 4.5V supply and drives an
external Pch MOSFET or and external low cost PNP as
the switching element. The IC also includes an error com-
parator for fast transient response, a precise voltage ref-
erence for setting the output voltage as well as a direct
drive of the MOSFET for the minimum part count.
TYPICAL APPLICATION
ATX
P.S.
5V
5V(S.B.)
C8
L1
C1
8765
SS CS+ CS- Gnd
US3036
Drv Vcc Vfb NC
1234
C6
C3 R3 C5 R6
R1 L2
Q2
C2
C4
R2 D1
R4
R5
3036app2-1.0
R7
Vout
C7
Typical application of US3036
PACKAGE ORDER INFORMATION
TA (°C)
0 TO 70
8 PIN PLASTIC
SOIC (S)
US3036CS
Rev. 1.1
12/4/98
4-1

1 page




US3036CS pdf
TYPICAL APPLICATION
5V to 2.5V for RDRAM Supply
US3036
ATX
P.S.
5V
5V(S.B.)
C8
L1
C1
8765
SS CS+ CS- Gnd
US3036
Drv Vcc Vfb NC
1234
C6
C3 R3 C5 R6
R1 L2
Q2
C2
C4
R2 D1
R4
R5
3036app2-1.0
R7
Vout
C7
Figure 2- The circuit in figure 2 is the application of the US3036 providing a low cost solution for a 2.5V supply from
the 5V dual supply.
Ref Desig
U1
Q2
D1
Description
LDO/Switcher IC
MOSFET
P Ch
Schottky Diode
Qty Part #
1 US3036CS ( 8 pin SOIC)
1 IRF7204 (8 pin SOIC) or IRF7406 for 4A
SI9435DY (8 pin SOIC) or SI4431 for 4A
1 SK33DICT (SMC)
Manufacturer
Unisem
IR
Temic
Lite on
L2 Inductor
L1 Inductor
R1 Resistor
R2 Resistor
R3 Resistor
R4 Resistor
R5 Resistor
R6 Resistor
R7 Resistor
C1 Capacitor
C2 Capacitor
C3 Capacitor
C4 Capacitor
C5 Capacitor
C6 Capacitor
C7 Capacitor
C8 Capacitor
1 Core:T44-52,L=6 uH
Micro Metal
Turns: 15T, 20 AWG
(core)
1 L=1 uH
1 10 ohm,5%, SMT 1206 size
1 10 ohm, 5%, SMT 1206 size
1 200 kohm,1%, SMT 0805 size
1 1 kohm,1%, SMT 0805 size
1 1 kohm,1%, SMT 0805 size
1 1 kohm,5%
1 3.57 kohm,1%, SMT 0805 size
1 470uF,10V, Elect
Sanyo
1 10CV1000DX, 1000uF,10V, Elect ,ESR=0.07 Ohm
Sanyo
1 1 uF,Ceramic, SMT 0805 size
1 470 pF,Ceramic, SMT 0805 size
Sanyo
1 10 pF,Ceramic, SMT 0805 size
Sanyo
1 0.1uF
1 10CV1000DX, 1000uF,10V, Elect ,ESR=0.07 Ohm
Sanyo
1 0.15 uF
Rev. 1.1
12/4/98
4-5

5 Page










PáginasTotal 7 Páginas
PDF Descargar[ Datasheet US3036CS.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
US3036CS8 PIN PWM SWITCHER CONTROLLER ICUNISEM
UNISEM

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar