US3033 UNISEM, US3033 Datasheet - Page 5

• Manufacturer Part Number: US3033
• Description: PWM SWITCHER & LINEAR CONTROLLER IC
• Manufacturer: UNISEM

Pentium Dual Supply Application Parts List
* R4 is a parallel combination of R4A and R4B.
Note 1: For the applications where it is desirable to eliminate the heat sink, the IRL3103S for Q2 and MBR1545CT for D2 in TO263
packages with minimum of 1" square copper pad can be used.
Rev. 1.5
1/14/99
Ref Desig
U1
Q1
Q2
D2
D1
L2
L1
R1
R2
R3
R4A *
R4B *
R5A
R5B
R5C
R5D
R5E
R6
R7
R8
R9
R10
R11
R13
C1
C2
C3
C4
C5
C6
C7
C8
C9
HS1
HS2
HS3
Description
LDO/Switcher IC
MOSFET
MOSFET
Diode, GP
Schottky Diode
Inductor
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Heat Sink
Heat Sink
Heat Sink
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
US3033CS ( 8 pin SOIC)
MTP3055 (TO220)
IRL3303 (TO220)
IRL3103S (TO263) (note 1)
1N4148
MBR1045CT (TO220)
MBRB1545CT (TO263) (note1)
Core:T50-18,L=4 uH
Turns: 10T, 18 AWG
L=2 uH
22 ohm,5%, SMT 1206 size
10 ohm, 5%, SMT 1206 size
324 kohm,1%, SMT 0805 size
806 ohm,1%, SMT 0805 size
90.9 kohm,1%, SMT 0805 size
1.24 kohm,1%, SMT 0805 size
2.49 kohm,1%, SMT 0805 size
4.99 kohm,1%, SMT 0805 size
10 kohm,1%, SMT 0805 size
1.30 kohm,1%, SMT 0805 size
2k ohm,1%, SMT 0805 size
1.21k ohm,1%, SMT 0805 size
1 kohm,5%, SMT 0805 size
10 ohm,5%, SMT 0805 size
1k ohm,5%, SMT 0805 size
2.4k ohm,5%, SMT 0805 size
7.5k ohm,5%, SMT 0805 size
6MV1500GX, 1500uF,6.3V, Elect
6MV1500GX, 1500uF,6.3V, Elect
1 uF,Ceramic, SMT 0805 size
470 pF,Ceramic, SMT 0805 size
10 pF,Ceramic, SMT 0805 size
6MV1500GX, 1500uF,6.3V, Elect
6MV1500GX, 1500uF,6.3V, Elect
1 uF,Ceramic, SMT 0805 size
470pF ,Ceramic, SMT 0805 size
For MOSFET , 577002
For Schottky Diode , 577002
For Q1 , 507222 (I/O curren<5A)
576602 (I/O current< 3.5A)
Part #
Manufacturer
Rectifier
Micro Metal
International
Motorola
Motorola
Unisem
(core)
Sanyo
Sanyo
Sanyo
Sanyo
Sanyo
Aavid
Aavid
Aavid
US3033
4-5