CMOS 300mA LDO Voltage regulator
ELM89xxxBC
■General description
ELM89xxxBC is CMOS LDO voltage regulator. There are 3 types of CE selection for ELM89 series: non-chip
enable function, “L”active and “H”active. Thermal shutdown protective function and short circuit current limiter
are included in the IC. The standard output voltages are 1.2V, 1.8.V, 2.5V, 3.0V, 3.3V, 5.0V; ELM89 series can
also be designed as semi-custom IC within the range of 0.8V to 5.0V by 0.1V step.
■Features
■Application
• Battery operated devices
• Wireless devices
• Cell phones
• Output voltage range
: 0.8V to 5.0V (by 0.1V)
: 300mA
• Output current
• Stand by current consumption : Typ.0.1μA
• Input stability
: Typ.0.02%/V(Iout=40mA)
• Battery-operated devices
• PCs
• Load stability
: Typ.5mV(1mA≤Iout≤100mA)
: ±2.0%(Vout>1.5V)
• Accuracy of output voltage
±30mV(Vout≤1.5V)
• Input-output voltage difference : Typ.350mV(Vout=3.0V, Iout=300mA)
• Short circuit current limiter : Typ.40mA(Vout=0V)
• Thermal shutdown protection : Typ.165°C
• Chip enable pin
: “L”active(ELM89xx2BC)
“H”active(ELM89xx3BC)
: SOT-23, SOT-25
• Package
■Maximum absolute ratings
Parameter
Symbol
Vin
Limit
Vss-0.3 to 7.0
Unit
V
Input voltage
Input voltage
Output voltage
Output current
Vce
Vout
Iout
Vss-0.3 to Vin+0.3
Vss-0.3 to Vin+0.3
600
V
V
mA
CE/CE
250 (SOT-23)
250 (SOT-25)
-40 to +85
Power dissipation
Pd
mW
Operationg Temperature
Storage Temperature
Top
Tstg
°C
°C
-55 to +125
■Selection guide
ELM89xxxBC-x
Symbol
e.g. :
12: Vout=1.2V
25: Vout=2.5V
33: Vout=3.3V
18: Vout=1.8V
30: Vout=3.0V
50: Vout=5.0V
a, b
Output voltage
ELM89 x x x B C - x
↑ ↑ ↑ ↑ ↑ ↑
1: No CE
a b c d e f
c
CE selection
2: CE=“L”active
3: CE=“H”active
B: SOT-23, SOT-25
C
d
e
f
Package
Product version
Taping direction
S, N: Refer to PKG file
20 - 1
ELM-TECH [ ELM Technology Corporation ]
