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SI-3000KD View Datasheet(PDF) - Allegro MicroSystems

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Description
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SI-3000KD Datasheet PDF : 0 Pages
1-1-1 Linear Regulator ICs
SI-3000KD Series Surface-Mount, Low Current Consumption, Low Dropout Voltage Linear Regulator ICs
Features
• Compact surface-mount package (TO263-5)
• Output current: 1.0A
• Low dropout voltage: VDIF 0.6V (at IO = 1.0A)
• Low circuit current consumption: Iq 350 µA
(600 µA for SI-3010KD, SI-3050KD
• Low circuit current at output OFF: Iq (OFF) 1 µA
• Built-in overcurrent, thermal protection circuits
• Compatible with low ESR capacitors (SI-3012KD
and SI-3033KD)
Absolute Maximum Ratings
(Ta=25°C)
Parameter
DC Input Voltage
DC Output Current
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Ambient Air)
Thermal Resistance (Junction to Case)
Symbol
VIN
IO
PD*2
Tj
Tstg
θ j-a
θ j-c
Ratings
SI-3012KD/3033KD
SI-3010KD/3050KD
17
35*1
1.0
3
–30 to +125
–30 to +125
33.3
3
Unit
V
A
W
°C
°C
°C/W
°C/W
*1: A built-in input-overvoltage-protection circuit shuts down the output voltage at the Input Overvoltage Shutdown Voltage
of the electrical characteristics.
*2: When mounted on glass-epoxy board of 1600mm2 (copper laminate area 100%).
Applications
• Secondary stabilized power supply (local power supply)
Electrical Characteristics 1 (Low VO type compatible with low ESR output capacitor)
(Ta=25°C, VC=2V unless otherwise specified)
Ratings
Parameter
Symbol
SI-3012KD (Variable type)
SI-3033KD
Unit
min.
typ.
max.
min.
typ.
max.
Input Voltage
VIN
2.4*3
*4
*3
*4
V
Output Voltage
(Reference Voltage for SI-3012KD)
VO (VADJ)
Conditions
1.24
1.28
VIN=3.3V, IO=10mA
1.32
3.234
3.300
3.366
V
VIN=5V, IO=10mA
Line Regulation
VOLINE
Conditions
15
VIN=3.3 to 8V, IO=10mA (VO=2.5V)
15
mV
VIN=5 to 10V, IO=10mA
Load Regulation
VOLOAD
Conditions
40
VIN=3.3V, IO=0 to 1A (VO=2.5V)
50
mV
VIN=5V, IO=0 to 1A
VDIF
0.4
0.4
Dropout Voltage
Conditions
IO=0.5A (VO=2.5V)
0.6
IO=0.5A
V
0.6
Quiescent Circuit Current
Circuit Current at Output OFF
Temperature Coefficient of
Output Voltage
Ripple Rejection
Overcurrent Protection Starting
Current*1
Control Voltage (Output ON)*2
Control Voltage (Output OFF)
VC
Control Current (Output ON)
Terminal
Control Current (Output OFF)
Conditions
Iq
Conditions
Iq (OFF)
Conditions
VO/Ta
Conditions
RREJ
Conditions
IS1
Conditions
VC, IH
VC, IL
IC, IH
Conditions
IC, IL
Conditions
IO=1A (VO=2.5V)
350
VIN=3.3V, IO=0A, VC=2V, R2=2.4k
1
VIN=3.3V, VC=0V
±0.3
Tj=0 to 100°C (VO=2.5V)
55
VIN=3.3V, f=100 to 120HZ, IO=0.1A (VO=2.5V)
1.1
VIN=3.3V
2
0.8
40
VC=2V
–5
0
VC=0V
IO=1A
350
VIN=5V, IO=0A,VC=2V
1
VIN=5V, VC=0V
±0.3
Tj=0 to 100°C
55
VIN=5V, f=100 to 120HZ, IO=0.1A
1.1
VIN=5V
2
0.8
40
VC=2V
–5
0
VC=0V
µA
µA
mV/ °C
dB
A
V
µA
µA
*1: IS1 is specified at the 5% drop point of output voltage VO under the condition of Output Voltage parameter.
*2: Output is OFF when the output control terminal (VC terminal) is open. Each input level is equivalent to LS-TTL level. Therefore, the device can be driven directly by LS-TTLs.
*3: Refer to the Dropout Voltage parameter.
*4: VIN (max) and IO (max) are restricted by the relation PD = (VIN - VO) × IO. Please calculate these values referring to the Copper laminate area vs. Power dissipation data.
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