ELM99xxxA
■
GENERAL DESCRIPTION
LOW SATURATION VOLTAGE REGULATOR
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
・
High accuracy of output voltage
・
Small input-output voltage differential
・
Low stand-by current consumption
・
High load stability
・
High input stability
・
Output voltage range
・
Short-circuit current limiter
・
Chip-enable pin available
: 300mA (Intenal current limiter operates in case load
current exceeds 300mA.)
:
±
2.0%
: TYP. 140mV (ELM9930xA IOUT=40mA)
: TYP. 0.1
μ
A (ELM99xx3A)
: TYP. 5mV (1mA
≦
Iout
≦
100mA)
: TYP. 0.15%/V (ELM9930xA IOUT=40mA)
: 2.0V
�½�
6.0V ( 0.1V steps )
: TYP. 70mA (VOUT=0V)
: “L”active ELM99xx2A, “H”active ELM99xx3A
・
Palmtops
・
cameras and video recorders
・
Battery-operated devices
■
APPLICATION
・
Cellular telephones
・
Laptop and notebook computers
・
Reference voltage sources
・
PCMCIA cards
■
PIN CONFIGURATION
1.ELM99xx1A
2.ELM99xx2A
5
4
3.ELM99xx3A
5
4
SOT-89
SOT-89-5
SOT-89-5
1
2
3
1
2
3
1
2
3
( TOP VIEW )
( TOP VIEW )
( TOP VIEW )
SOT-89
Pin No. Pin Name
1
VSS
2
VIN
3
VOUT
SOT-89-5
Pin No. Pin Name
1
VSS
2
VIN
3
VOUT
4
NC
5
CE
SOT-89-5
Pin No. Pin Name
1
VSS
2
VIN
3
VOUT
4
NC
5
CE
220
ELM [ ELM ELECTRONICS ]
