48 ICs
1-1-3 DC/DC Converter ICs
Unit
V
W
W
°C
°C
°C/W
°C/W
Ratings
45
20.8(Withinfiniteheatsink)
1.8
(Withoutheatsink,stand-aloneoperation)
–30to+150
–40to+150
6
66.7
Symbol
VIN
PD1
PD2
Tj
Tstg
θj-c
θj-a
Parameter
InputVoltage
PowerDissipation
JunctionTemperature
StorageTemperature
ThermalResistance(JunctiontoCase)
ThermalResistance(JunctiontoAmbientAir)
Parameter
InputVoltageRange
OutputVoltageRange
OutputCurrentRange
OperatingJunctionTemperatureRange
OperatingTemperatureRange
Symbol
VIN
Vo
Io
Tjop
Top
Unit
V
V
A
°C
°C
Raings
SI-8010Y SI-8050Y
8 or VO+3* to 43 8 to 43
1 to 15 5
0 to 8.0
–30 to +135
–30 to +85
Unit
V
mV/°C
%
kHz
mV
mV
A
mA
µ
A
µ
A
V
V/V
µ
A/V
V/A
%
nsec
Parameter
OutputVoltage
(ReferencevoltageforSI-8010Y)
TemperatureCoefficientofOutputVoltage
(ReferencevoltagetemperaturecoefficientforSI-8010Y)
Efficiency
OscillationFrequency
LineRegulation
LoadRegulation
OvercurrentProtectionStartingCurrent
QuiescentCircuitCurrent
EN/SSPin*
ErrorAmplifierVoltageGain
ErrorAmplifierTransformerConductance
CurrentSenseAmplifierImpedance
MaximumONDuty
MinimumONTime
Symbol
VO(VREF)
Conditions
∆V
O
/∆T(∆V
REF
/∆T)
Conditions
η
Conditions
fo
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
Is
Conditions
Iq
Conditions
Iq(OFF)
Conditions
ISSL
Conditions
VSSL
Conditions
AEA
GEA
1/GCS
DMAX
DMIN
Ratings
SI-8010Y* SI-8050Y
mIN.typ. max. mIN.typ. max.
0.98 1.00 1.02 4.90 5.00 5.10
VIN=30V, Io=0.1A VIN=30V, Io=0.1A
±0.1 ±0.5
VIN=30V, Io=0.1A, Ta=0 to 100°CVIN=30V, Io=0.1A, Ta=0 to 100°C
86 86
VIN=30V, Io=3A VIN=30V, Io=3A
130 130
VIN=30V, Io=3A VIN=30V, Io=3A
30 90 30 90
VIN=10 to 43V, Io=3A VIN=10 to 43V, Io=3A
30 90 30 90
VIN=30V, Io=0.1 to 8A VIN=30V, Io=0.1 to 8A
8.1 8.1
VIN=20V VIN=20V
88
VIN=30V, Io=0A, EN/SS=open VIN=30V, Io=0A, EN/SS=open
200 500 200 500
VIN=30V, EN/SS=0V VIN=30V, EN/SS=0V
10 30 10 30
VIN=30V, EN/SS=0V VIN=30V, EN/SS=0V
0.5 0.5
VIN=30V VIN=30V
300 300
800 800
0.16 0.16
92 92
200 200
SI-8000Y
SS5SS
C6C6
5
SI-8000Y
Soft start Soft start
+VOUT. ON/OFF
Full-Mold, Separate Excitation Step-down Switching Mode Regulator ICs
SI-8000Y Series
■Features
•Compact (equivalent to TO220) full-mold
package
•Output current: 8.0 A
•High efficiency: 86%
•Built-in reference oscillator (130 kHz)
•Built-in drooping-type-overcurrent protection
and thermal protection circuits
•Built-in soft start circuit (Output ON/OFF
available)
•Low current consumption during off
■Absolute Maximum Ratings
■Recommended Operating Conditions
■Electrical Characteristics
■Applications
•AV equipment
•OA equipment
•Gaming equipment
•Onboard local power supplies
Current Mode Control Step-down Switching Mode
Outflow Current at
Low Voltage
Low Level Voltage
*:R1=8kΩ, R2=2kΩ when Ta=25°C and Vo=5V
*: The minimum value of the input voltage range is 8 V or Vo + 3V, whichever is higher.
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49
ICs
(Unit : mm)
Pin Assignment
qBS
wSW
eVIN
rGND
tCOMP
yFB
uEN/SS
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
SI-8010Y
C1:2200
µ
F/50V
C2:4.7
µ
F/50V
C3:470
µ
F/25V
C4:1200pF
C5:0.22
µ
F/50V
C7:680pF
L1:47
µ
H
D1:FMW-2156(Sanken)
R1:8kΩ(WhenVo=5V)
R2:2kΩ
R3:39kΩ
SI-8050Y
C1:2200
µ
F/50V
C2:4.7
µ
F/50V
C3:470
µ
F/25V
C4:1200pF
C5:0.22
µ
F/50V
C7:680pF
L1:56
µ
H
D1:FMW-2156(Sanken)
R3:39kΩ
SI-8010Y
C7
IN BS SW
FB
COMP GND
GND
Vo
EN/SS D1 C3
R1
R2
L1
Vin
GND
C1 C2
C6
C5
C4
R3
7
312
6
45 Csn2
Rsn2
Csn1 Rsn1
+
+
C7
SI-8050Y
IN BS SW
FB
COMP GND
GND
Vo
EN/SS D1 C3
L1
Vin
GND
C1 C2
C6
C5
C4
R3
7
312
6
45
+
+
Csn2
Rsn2
Csn1 Rsn1
4
GND
COMP
EN/SS
1
2
6
3
SW
BS
IN
FB
1.0V
7
5
+
–
+
–
–
SI-8010Y SI-8050Y
EN/
SS
Pre
REG
OSC
Current
Sence
Amp
UVLD
TSD
OCP
PWM
LOGIC
Boot
5vREG
DRIVE
Amp
4
GND
COMP
EN/SS
1
2
6
3
SW
BS
IN
FB
1.0V
7
5
+
–
+
–
–
EN/
SS
Pre
REG
OSC
Current
Sence
Amp
UVLD
TSD
OCP
PWM
LOGIC
Boot
5vREG
DRIVE
Amp
4.2
±0.2
6-0.74
±0.15
(3-R1)
7.6
±0.1
4.3
±0.5
3.6
±0.5
(5.3)
2.8
6-0.65
+0.2
–0.1
0.45
+0.2
–0.1
10.0
±0.2
Gate burr
4.0
±0.2
7.9
±0.2
10
±0.5
16.9
±0.3
17.6
±0.7
0.5
123
(Measured at the root)
(Measured at the root)
4567
2.8
±0.2
3.2
±0.2
φ
Plan View
0.5 0.5
R-end
6×P1.27
±0.15
–7.62
±0.15
Csn1,2=2200pF(WhenVin>40V)
Rsn1,2=10Ω(WhenVin>40V)
SI-8000Y Series
■External Dimensions (TO220F-7)
■Block Diagram
■Typical Connection Diagram
Csn1,2=2200pF(WhenVin>40V)
Rsn1,2=10Ω(WhenVin>40V)
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