SI-3012LU Datasheet, PDF (1/2 Pages) Sanken electric – Surface-Mount, Low Current Consumption, Low Dropout Voltage

1-1-4 Linear Regulator ICs
SI-3000LU Series Surface-Mount, Low Current Consumption, Low Dropout Voltage
■Features
• Compact surface-mount package (SOT89-5)
• Output current: 250 mA
• Low current consumption lq (OFF) ≤ 1µA
(VC = 0 V)
• Low dropout voltage: VDIF ≤ 0.5 V
(at IO = 250 mA)
• Output voltage range (1.5V to 15V)
• Built-in drooping-type-overcurrent and thermal
protection circuits
■Absolute Maximum Ratings
Parameter
DC Input Voltage
Output control terminal voltage
DC Output Current
Power Dissipation
Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Ambient Air)
Symbol
VIN
VC
IO
PD*1
Tj*2
Tstg*2
θ j-a*1
Ratings
18
VIN
250
0.75
–40 to +135
–40 to +125
146
*1: When mounted on glass-epoxy board 40 × 40 mm (copper laminate area 2%).
*2: Thermal protection circuits may operate if the junction temperature exceeds 135°C.
■Applications
• Auxiliary power supplies for PC
• Battery-driven electronic equipment
(Ta=25°C)
Unit
V
V
mA
W
°C
°C
°C/W
■Recommended Operating Conditions
Ratings
Parameter
Symbol
min.
max.
Unit
Input Voltage
VIN
*2, *3
VO+2^*1
V
DC Output Current
IO
0
250
mA
Operating Ambient Temperature
Top
–20
85
°C
*1: VIN (max) and IO (max) are restricted by the relation PD = (VIN - VO) × IO.
Calculate these values referring to the reference data on page 69.
*2: Refer to the Dropout Voltage parameter.
*3: For the SI-3012LU, set the input voltage to Vin ≥ 2.4 V, and secure the minimum voltage as explained in "Setting DC Input Voltage" section in Linear Regulator Application Note.
■Electrical Characteristics
Parameter
Reference Voltage
Dropout Voltage
Line Regulation
Load Regulation
Temperature Coefficient of
Reference Voltage
Ripple Rejection
Quiescent Circuit
Current
Circuit Current at Output OFF
Overcurrent Protection
Starting Current^*1
Control Voltage (Output ON)^*2
Control Voltage (Output OFF)^*2
VC
Control Current (Output ON)
Terminal
Control Current (Output OFF)
Symbol
VADJ
Conditions
VDIF
Conditions
Conditions
∆VLINE
Conditions
∆VLOAD
Conditions
∆VO/∆Ta
Conditions
RREJ
Conditions
Iq
Conditions
Iq(OFF)
Conditions
IS1
Conditions
VC, IH
VC, IL
IC, IH
Conditions
IC, IL
Conditions
min.
1.210
260
2.0
Ratings
SI-3012LU(Variable)
typ.
1.250
VIN=VO+1V, IO =10mA
IO=100mA(VO =3.3V)
IO=250mA(VO =3.3V)
VIN=VO+1 to VO+5V,
IO=10mA( VO=3.3V)
VIN=VO +1V,
IO=1 to 250mA( V O=3.3V)
±0.3
Tj=0 to 100°C
55
VIN=VO +1V ,
f=100 to 120HZ( VO=3.3V)
VIN=VO+1V, IO=0mA
VC=2V, R2=100kΩ
VIN=VO+1V, VC=0V
VIN=VO +1V
VC=2V
0
VC=0V
(Ta=25°C, VC=2V, unless otherwise specified)
Unit
max.
1.290
V
0.3
V
0.5
10
mV
20
mV
150
1
0.8
40
–5
mV/ °C
dB
µA
µA
mA
V
µA
µA
*1: Is1 is specified at the 5% drop point of output voltage VO on the condition that VIN = 3.3 V, and IO = 10 mA.
*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.
68 ICs