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參數(shù)資料
| 型號： | SI-3018LSA |
| 廠商： | SANKEN ELECTRIC CO LTD |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PDSO8 |
| 封裝： | PLASTIC, SOP-8 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 69K |
| 代理商： | SI-3018LSA |
12
ICs
1-1-1 Linear Regulator ICs
■Absolute Maximum Ratings
■Recommended Operating Conditions
Unit
V
A
W
°C
°C/W
Ratings
16
VIN
1
1.16
1.1
–30 to +150
36
100
Symbol
VIN
VC
IO
PD1*1
PD2*2
Tj*3
Top
Tstg
θj-I
θj-a*2
Parameter
DC Input Voltage
Output control terminal voltage
DC Output Current
Power Dissipation
Junction Temperature
Operating Ambient Temperature
Storage Temperature
Thermal Resistance (Junction to Lead (pin 8))
Thermal Resistance (Junction to Ambient Air)
Parameter
DC Input Voltage Range
DC Output Current Range
Operating Junction Temperature
Operating Ambient Temperature
Symbol
VIN
IO
Tjop
Taop
Unit
V
A
°C
*1: VIN (max) and IO (max) are restricted by the relation PD = (VIN – VO)
× IO.
Please calculate these values referring to the reference data on page 15.
*2: Refer to the Dropout Voltage parameter.
(Ta=25
°C)
■Features
Compact surface-mount package (SOP8)
Output current: 1 A
Low circuit current at output OFF: Iq(OFF)
≤ 1
A (VC = 0 V)
Low dropout voltage: VDIF
≤0.8 V (at IO = 1 A)
VDIF
≤1.2 V (IO = 1 A) for SI-3018LSA
4 types of output voltages (1.8 V, 2.5 V, 3.3 V,
5.0 V) available
Output ON/OFF control terminal voltage
compatible with LS-TTL
Built-in foldback-type-overcurrent and thermal
protection circuits
■Applications
Auxiliary power supplies for PC
Battery-driven electronic equipment
Ratings
SI-3018LSA
SI-3025LSA
SI-3033LSA
SI-3050LSA
3.1 to 3.5*1
*2 to 3.5*1
*2 to 5.2*1
*2 to 8.0
0 to 1
–20 to +125
–30 to +85
■Electrical Characteristics
(Ta=25
°C, VC=2V unless otherwise specified)
Unit
V
mV
mV/
°C
dB
mA
A
V
A
Parameter
Output Voltage
Dropout Voltage
Line Regulation
Load Regulation
Temperature Coefficient of
Output Voltage
Ripple Rejection
Quiescent Circuit Current
Circuit Current at Output OFF
Overcurrent Protection
Starting Current*1,3
Control Voltage (Output ON)*2
Control Voltage (Output OFF)*2
VC
Control Current (Output ON)
Terminal
Control Current (Output OFF)
Symbol
VO
Conditions
VDIF
Conditions
VLINE
Conditions
VOLOAD
Conditions
VO/Ta
Conditions
RREJ
Conditions
Iq
Conditions
Iq(OFF)
Conditions
IS1
Conditions
VC, IH
VC, IL
IC, IH
Conditions
IC, IL
Conditions
*1: Is1 is specified at the 5% drop point of output voltage VO on the condition that VIN = 3.3 V (5 V for SI-3033LSA), and IO = 0.5 A.
*2: Output is OFF when the output control terminal VC is open. Each input level is equivalent to LS-TTL level. Therefore, the device can be driven directly by LS-TTLs.
*3: These products cannot be used in the following applications. Because these applications require a certain current at start-up and so 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) VO adjustment by raising ground voltage
Ratings
SI-3018LSA
SI-3025LSA
SI-3033LSA
SI-3050LSA
min.
typ.
max.
min.
typ.
max.
min.
typ.
max.
min.
typ.
max.
1.764
1.800
1.836
2.450
2.500
2.550
3.234
3.300
3.366
4.90
5.00
5.10
VIN=3.3V, IO=0.5A
VIN=5V, IO=0.5A
VIN=6.5V, IO=0.5A
–
0.4
–IO
≤0.5A
IO
≤0.5A
IO
≤0.5A
0.6
1.2
0.8
IO
≤1A
210
3
10
15
VIN=3.1 to 3.5V, IO=0.3A
VIN=4.5 to 5.5V, IO=0.3A
VIN=6 to 7V, IO=0.3A
10
20
10
20
10
20
30
VIN=3.3V, IO=0 to 1A
VIN=5V, IO=0 to 1A
VIN=6.5V, IO=0 to 1A
±0.3
±0.5
VIN=3.3V, IO=5mA, Tj=0 to 100
°CVIN=3.3V, IO=5mA, Tj=0 to 100°CVIN=5V, IO=5mA, Tj=0 to 100°CVIN=6.5V, IO=5mA, Tj=0 to 100°C
60
57
55
VIN=3.3V, f=100 to 120HZ
VIN=5V, f=100 to 120HZ
VIN=6.5V, f=100 to 120HZ
1.7
2.5
1.7
2.5
1.7
2.5
1.7
2.5
VIN=3.3V, IO=0A
VIN=5V, IO=0A
VIN=6.5V, IO=0A
111
1
VIN=3.3V, IO=0A, VC=0V
VIN=5V, IO=0A, VC=0V
VIN=6.5V, IO=0A, VC=0V
1.2
VIN=3.3V
VIN=5V
VIN=6V
2.0
0.8
40
80
40
80
40
80
40
80
VC=2V
0–5
VC=0V
*1: When mounted on glass-epoxy board 56.5
× 56.5 mm (copper laminate area 100%).
*2: When mounted on glass-epoxy board 40
× 40 mm (copper laminate area 100%).
*3: Thermal protection circuits may be activated if the junction temperature exceeds 135
°C.
Surface-Mount, Low Current Consumption, Low Dropout Voltage Linear Regulator ICs
SI-3000LSA Series
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