1-1-1 Linear Regulator ICs
SI-3000ZFE Series
5-Terminal, Low Dropout Voltage Linear Regulator ICs
■Features
• Compact full-mold package (equivalent to
TO220)
• Output current: 3.0A
• Low dropout voltage: V
DIF
≤
0.7V (at I
O
= 3.0A)
• Low circuit current at output OFF: Iq (OFF)
≤
1
µ
A
• Built-in overcurrent and thermal protection circuits
■Absolute
Maximum Ratings
Parameter
DC Input Voltage
Output Control Terminal Voltage
DC Output Current
Power Dissipation
Junction Temperature
Operating Ambient Temperature
Storage Temperature
Thermal Resistance (Junction to Case)
Thermal Resistance (Junction to Ambient
Air)
Symbol
V
IN*1
V
C
I
O*1
P
D1
P
D2
T
j
T
op
T
stg
Ratings
10
6
3.0
20 (With infinite heatsink)
1.5 (Without heatsink, stand-alone operation)
–30 to +125
–30 to +100
–30 to +125
5.0
66.7 (Without heatsink, stand-alone operation)
V
V
A
W
W
°C
°C
°C
(T
a
= 25°C)
Unit
■Applications
• Secondary stabilized power supply (local
power supply)
θ
j-c
θ
j-a
°C/W
°C/W
■Recommended
Operating Conditions
Parameter
Input Voltage
Output Current
Operating Ambient Temperature
Operating Junction Temperature
Output Voltage Variable Range
Symbol
V
IN
I
O
T
op (a)
T
op (j)
V
OADJ
Ratings
*2
Unit
V
A
°C
°C
V
to 6
*1
0 to 3
–20 to +85
–20 to +100
1.2 to 5
*1: V
IN
(max) and I
O
(max) are restricted by the relationship P
D
= (V
IN
- V
O
)
×
I
O
.
*2: Set the input voltage to 2.4V or higher when setting the output voltage to 2.0V or lower.
■Electrical
Characteristics
Parameter
Symbol
min.
Reference Voltage
Line Regulation
Load Regulation
Dropout Voltage
Quiescent Circuit Current
Circuit Current at Output OFF
Temperature Coefficient
of Output Voltage
Ripple Rejection
Overcurrent Protection Starting Current
*2
*4
(T
a
= 25°C, V
C
= 2V unless otherwise specified)
SI-3011ZFE
typ.
1.100
V
IN
=V
O
+1V, I
O
=10mA
10
V
IN
=3.3 to 5V, I
O
=10mA (V
O
=2.5V)
40
V
IN
=3.3V, I
O
=0 to 3A (V
O
=2.5V)
0.7
I
O
=3A (V
O
=2.5V)
1
V
IN
=V
O
+1V, I
O
=0A, V
C
=2V
1
V
IN
=V
O
+1V, V
C
=0V
±0.3
T
j
=0 to 100°C
60
V
IN
=V
O
+1V, f=100 to 120H
Z
, I
O
=0.1A
3.2
V
IN
=V
O
+1V
2
0.8
100
V
C
=2.7V
–5
0
V
C
=0V
1.5
max.
1.122
V
mV
mV
V
mA
1.078
Unit
V
ADJ
Conditions
∆V
OLINE
Conditions
∆V
OLOAD
Conditions
V
DIF
Conditions
I
q
Conditions
I
q
(OFF)
Conditions
∆V
O
/∆T
a
Conditions
R
REJ
Conditions
I
S1
Conditions
V
C
, IH
V
C
, IL
I
C
, IH
Conditions
I
C
, IL
Conditions
µ
A
mV/
°C
dB
A
V
Control Voltage (Output ON)
*3
Control Voltage (Output OFF)
*3
V
C
Control Current(Output ON)
Terminal
Control Current(Output OFF)
µ
A
µ
A
*1:
*2:
*3:
*4:
Set the input voltage to 2.4V or higher when setting the output voltage to 2.0V or lower.
I
S1
is specified at the 5% drop point of output voltage V
O
under the Output Voltage parameter conditions.
Output is OFF when the output control terminal V
C
is open. Each input level is equivalent to LS-TTL level. Therefore, the device can be driven directly by LS-TTLs.
These products cannot be used in the following applications because the built-in foldback-type overcurrent protection may cause errors during start-up stage.
(1) Constant current load (2) Positive and negative power supply (3) Series-connected power supply (4) V
O
adjustment by raising ground voltage
38
ICs
SI-3000ZFE Series
■External
Dimensions (TO220F-5)
Type A
±0.1
(unit : mm)
Type B
10.16
±0.2
4.7
3.3
±0.2
0.5
2.54
0.7
±0.2
±0.2
φ
3.2
±0.2
10.0
±0.2
4.2
±0.2
2.8
4.0
±0.2
7.9
±0.2
±0.2
a. Part Number
b. Lot number
c. Administer number
Pin Assignment
q
V
C
w
V
IN
e
GND
r
V
o
t
ADJ
Plastic Mold Package Type
Flammability: UL94V-0
Product Mass: Approx. 2.3g
The external dimension shall be
either A or B.
5.4
±0.2
6.68
A
SK
C
B
.2
(17.9)
2.76
±0.2
A
B
2.6
±0.1
(2.0)
(2)
0.8
±0.6
0.95
+0.1
R-end
±0.15
+0.2
4
×
p1.7
9.6
±0.2
±0.6
0.5
–0.1
+0.2
4.3
8.2
±0.7
±0.7
4.3
0.85
–0.1
P1.7
±0.7
×4=6.8
±0.7
0.45
–0.1
+0.2
3.9
±0.7
(4.3)
8.2
±0.7
1 2 3 4
5
1 2 3 4 5
■Typical
Connection Diagram/Block Diagram
SI-3011ZFE
V
IN
+
2
4
V
O
R3
*
C
IN
REF
+
+
R1
+
Drive
TSD
OCP
AMP1
5
ADJ
C
O
R2
C
IN
: Input capacitor (Approx. 10
µ
F)
This capacitor is required when the input line contains induc-
tance or when the wiring is long.
C
O
: Output capacitor (47
µ
F or higher)
The output voltage may oscillate if a low ESR type capacitor
(such as a ceramic capacitor) is used for the output capacitor
in SI-3000ZFE.
R1, R2: Output voltage setting resistors
The output voltage can be set by connecting R1 and R2 as
shown at left.
The recommended value for R2 is 10kΩ or 11kΩ.
V
C
ON/
OFF
1
-
-
+
3
GND
R1= (V
O
–V
ADJ
) / (V
ADJ
/R2)
*: Insert R3 in case of setting V
O
to V
O
≤
1.8V. The recom-
mended value for R3 is 10kΩ.
■T
a
-P
D
Characteristics
25
With Silicone Grease
Heatsink: Aluminum
Power Dissipation P
D
(W)
20
With Infinite Heatsink
15
200×200×2mm (2.3°C/W)
100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
10
5
Without heatsink
0
–30
0
25
50
75
100
Ambient Temperature T
a
(°C)
4.6
±0.6
0.5
–0.05
(4.6)
5.0
±0.6
(17.9)
3.
2
±
0
C
16.9
±0.3
15.87
-
φ
ICs
39
Analog electronics
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