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PDF ELM99xxA Data sheet ( Hoja de datos )
| Número de pieza | ELM99xxA | |
| Descripción | LOW SATURATION VOLTAGE REGULATOR | |
| Fabricantes | ELM Electronics | |
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ELM99xxxA LOW SATURATION VOLTAGE REGULATOR
■ GENERAL DESCRIPTION
ELM99xxxA series is CMOS voltage regulator providing large current. It consists of devices including
reference voltage source, error amplifier, low resistance output transistor, short-circuit protection circuit,
output voltage setting resistor, chip-enable circuit. Output voltage is fixed internally with high accuracy.
ELM99xxxA provides excellent characteristics, such as small input-output voltage difference due to low
resistance output transistor, high load stability due to high gain error amplifier.
The chip-enable function is available in three selections, no-chip enable function, active-low (“L” active)
and active-high (“H” active).
The package is SOT-89-3 or SOT-89-5. SOT-89-5 is used for chip enable version.
■ FEATURES
・ Maximum output current
: 300mA (Intenal current limiter operates in case load
current exceeds 300mA.)
・ High accuracy of output voltage
: ± 2.0%
・ Small input-output voltage differential
: TYP. 140mV (ELM9930xA IOUT=40mA)
・ Low stand-by current consumption
: TYP. 0.1 μ A (ELM99xx3A)
・ High load stability
: TYP. 5mV (1mA ≦ Iout ≦ 100mA)
・ High input stability
: TYP. 0.15%/V (ELM9930xA IOUT=40mA)
・ Output voltage range
: 2.0V ～ 6.0V ( 0.1V steps )
・ Short-circuit current limiter
: TYP. 70mA (VOUT=0V)
・ Chip-enable pin available
: “L”active ELM99xx2A, “H”active ELM99xx3A
■ APPLICATION
・ Cellular telephones
・ Palmtops
・ Laptop and notebook computers
・ cameras and video recorders
・ Reference voltage sources
・ Battery-operated devices
・ PCMCIA cards
■ PIN CONFIGURATION
1.ELM99xx1A
2.ELM99xx2A
3.ELM99xx3A
54
54
SOT-89
SOT-89-5
SOT-89-5
123
( TOP VIEW )
SOT-89
Pin No. Pin Name
1 VSS
2 VIN
3 VOUT
123
( TOP VIEW )
SOT-89-5
Pin No. Pin Name
1 VSS
2 VIN
3 VOUT
4 NC
5 CE
123
( TOP VIEW )
SOT-89-5
Pin No. Pin Name
1 VSS
2 VIN
3 VOUT
4 NC
5 CE
220
1 page  
LOW SATURATION VOLTAGE REGULATOR ELM99xxxA
■ ELECTRICAL CHARACTERISTICS
ELM99271A
Parameter
Output Voltage
Output Current
Load Stability
Input/Output
Voltage Differential
Current Consumption
Input Stability
Input Voltage
Output Voltage Temp.
Characteristics
Short-circuit Current
Symbol
VOUT
IOUT
△VOUT
△IOUT
Vdif
ISS
△VOUT
△VIN
VIN
△VOUT
△Top
Ilim
Conditions
VIN=3.7V, IOUT=40mA
VIN=3.7V, Lower
by 0.1V than VOUT
VIN=3.7V
1mA≦IOUT≦100mA
IOUT=40mA
VIN=3.7V No-load
3.7V≦VIN≦8.0V
IOUT=40mA
VIN=3.7V, IOUT=40mA
-30℃≦Top≦+80℃
VOUT=0V
Min.
2.646
Typ.
2.700
(Top=25℃)
Max. Units
2.754 V
150 260
mA
5 15 mV
155 255
25 45
mV
μA
0.15 0.30 %/V
8.0 V
±100
ppm/℃
70 mA
ELM99301A
Parameter
Output Voltage
Output Current
Load Stability
Input/Output
Voltage Differential
Current Consumption
Input Stability
Input Voltage
Output Voltage Temp.
Characteristics
Short-circuit Current
Symbol
VOUT
IOUT
△VOUT
△IOUT
Vdif
ISS
△VOUT
△VIN
VIN
△VOUT
△Top
Ilim
Conditions
VIN=4.0V, IOUT=40mA
VIN=4.0V, Lower
by 0.1V than VOUT
VIN=4.0V
1mA≦IOUT≦100mA
IOUT=40mA
VIN=4.0V No-load
4.0V≦VIN≦8.0V
IOUT=40mA
VIN=4.0V, IOUT=40mA
-30℃≦Top≦+80℃
VOUT=0V
Min.
2.940
Typ.
3.000
(Top=25℃)
Max. Units
3.060 V
160 290
mA
5 15 mV
140 220
25 45
mV
μA
0.15 0.30 %/V
8.0 V
±100
ppm/℃
70 mA
224
5 Page 
LOW SATURATION VOLTAGE REGULATOR ELM99xxxA
■ TYPICAL PERFORMANCE CHARACTERISTICS
ELM99XX2A VCEH - Vin
2.0
1.5 Top=-30℃
+25℃
1.0 +80℃
0.5
0.0
2345678
Vin(V)
ELM99XX2A VCEL - Vin
2.0
1.5 Top=-30℃
+25℃
1.0 +80℃
0.5
0.0
2345678
Vin(V)
ELM99XX3A VCEH - Vin
2.0
1.5 Top=-30℃
+25℃
+80℃
1.0
0.5
0.0
2345678
Vin(V)
ELM99XX3A VCEL - Vin
2.0
1.5 Top=-30℃
+25℃
1.0 +80℃
0.5
0.0
2345678
Vin(V)
230
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet ELM99xxA.PDF ] | |
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