1-1-3 DC/DC Converter ICs
2-Output, Step-down Switching Mode
SPI-8001TW/SPI-8002TW/SPI-8003TW
■Absolute Maximum Ratings*1
■Features
• 2 regulators combined in one package
Ratings
Parameter
Symbol
Unit
SPI-8001TW
SPI-8002TW
SPI-8003TW
• Output current: 1.5A × 2 (HSOP 16 Pin
VIN
VCC
VC/E
PD
21
21
21
40
40
40
3.0
40
40
40
V
V
Surface mount package)
Input Voltage
• High efficiency: TYP80% (SPI-8001TW),
TYP78% (SPI-8002TW)
V
Power Dissipation*2, *3
W
Junction Temperature
Tj
+135
–40 to +135
+150
°C
• Variable output voltage: 1.0 to 16V (SPI-
8001TW), 1.0 to 24V (SPI-8002TW)
Storage Temperature
Tstg
θj-c
θj-a
–40 to +150
°C
*2
Thermal Resistance (junction to case)
9.0
°C/W
°C/W
• Built-in reference oscillator (250kHz): Enables
to downsize a choke-coil
*2
Thermal Resistance (junction to ambient air)
35.8
*1: Absolute maximum ratings show the destructive limit. No parameter should exceed the ratings in transient or normal
operations.
*2: When mounted on glass-epoxy board 70cm2 (copper laminate area 30.8cm2).
*3: Limited by thermal protection.
• Low circuit current consumption: ≤ 1µA (at
output OFF)
• High accuracy reference voltage: ±1%
• Built-in foldback-overcurrent and thermal
protection circuits
• Built-in ON/OFF circuit (soft start available) –
per output
■Applications
• Onboard local power supplies
• OA equipment
• For stabilization of the secondary-side output voltage of switching power supplies
■Recommended Operating Conditions*1
Ratings
Parameter
Symbol
SPI-8001TW
SPI-8002TW
SPI-8003TW
Unit
min.
max.
20
min.
max.
38
min.
max.
38
VIN
VCC
VC/E
VO
VO+3
4.5
VO+3
4.5
VO+3
4.5
V
V
Input Voltage Range
20
38
38
20
38
38
V
Output Voltage Range
1
16
1
24
1
24
V
Output Current Range
IO
1.5
1.5
1.5
+125
+85
A
Operating Junction Temperature Range
Operating Temperature Range
Tjop
Top
–30
–30
+135
+135
–30
–30
+135
+135
–30
–30
°C
°C
*1: Recommended operating conditions show the operating conditions required for the normal circuit function described in the electrical characteristics.
These conditions must be followed in actual use.
ICs
58
ETC [ ETC ]
