US3036 Просмотр технического описания (PDF) - Unisem
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US3036 Datasheet PDF : 7 Pages
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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
C6
1234
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
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