ELM89xxxBC
CMOS 300mA LDO Voltage regulator
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.
■General description
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■Features
Output voltage range
Output current
Stand by current consumption
Input stability
Load stability
Accuracy of output voltage
: 0.8V to 5.0V (by 0.1V)
: 300mA
: Typ.0.1μA
: Typ.0.02%/V(Iout=40mA)
: Typ.5mV(1mA≤Iout≤100mA)
: ±2.0%(Vout>1.5V)
±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
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■Application
Battery operated devices
Wireless devices
Cell phones
Battery-operated devices
PCs
■Maximum absolute ratings
Input voltage
CE/CE Input voltage
Output voltage
Output current
Power dissipation
Operationg Temperature
Storage Temperature
Parameter
Symbol
Vin
Vce
Vout
Iout
Pd
Top
Tstg
Limit
Vss-0.3 to 7.0
Vss-0.3 to Vin+0.3
Vss-0.3 to Vin+0.3
600
250 (SOT-23)
250 (SOT-25)
-40 to +85
-55 to +125
Unit
V
V
V
mA
mW
°C
°C
■Selection guide
Symbol
a, b
ELM89xxxBC-x
Output voltage
e.g. :
12: Vout=1.2V
18: Vout=1.8V
25: Vout=2.5V
30: Vout=3.0V
33: Vout=3.3V
50: Vout=5.0V
1: No CE
2: CE=“L”active
3: CE=“H”active
B: SOT-23, SOT-25
C
S, N: Refer to PKG file
c
d
e
f
CE selection
Package
Product version
Taping direction
ELM89 x x x B C - x
↑ ↑ ↑ ↑ ↑ ↑
a b c d e f
20 - 1
ELM89xxxBC
CMOS 300mA LDO Voltage regulator
■Pin configuration
SOT-23(TOP VIEW)
SOT-25(TOP VIEW)
SOT-25(TOP VIEW)
ELM89xx1BC
Pin No.
1
2
3
Pin name
VIN
VOUT
VSS
ELM89xx2BC
Pin No.
1
2
3
4
5
Pin name
VIN
VSS
CE
NC
VOUT
ELM89xx3BC
Pin No.
1
2
3
4
5
Pin name
VIN
VSS
CE
NC
VOUT
■Standard circuit
ELM89xx1BC
ELM89xx2BC: CE, ELM89xx3BC: CE
½½½½½½½½½½½½½½½
½½½½½
½½½
½½½
½½½½½½½½½½
½½½
½½½½
½½½½
½½½
½½½
½½½½½½½½½½
½½½½
½½½½½½½½½½
½½
½½½
½½½½
½½
½½
½½
* Ci=1μF, Co=1μF or greater
* Ci=1μF, Co=1μF or greater
■Block diagram
ELM89xx1BC
½½½
½½½½
ELM89xx2BC: CE, ELM89xx3BC: CE
½½½
½½½½
½
½
½½½½½½½
½½½½½½½
½
½
½½½½½½½
½½½½½½½
½½½½
½½½½
½½½½½½½
½½½½½½½
½½½
½½½½½
½½½
20 - 2
ELM89xxxBC
CMOS 300mA LDO Voltage regulator
■Electrical characteristics (ELM89xx1BC)
Vout=1.2V(ELM89121BC), No CE pin
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Condition
Vin=2.2V, Iout=40mA
Vin=2.2V
Iout=40mA, 1.7V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=2.2V
Iout=100mA
Vin=2.2V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=2.2V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Condition
Vin=2.8V, Iout=40mA
Vin=2.8V
Iout=40mA, 2.3V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=2.8V
Iout=100mA
Vin=2.8V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=2.8V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Condition
Vin=3.5V, Iout=40mA
Vin=3.5V
Iout=40mA, 3.0V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=3.5V
Iout=100mA
Vin=3.5V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=3.5V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Top=25°C
Min. Typ. Max. Unit
1.170 1.200 1.230
V
300
mA
0.05 0.20 %/V
5
20
mV
380 620
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
Vout=1.8V(ELM89181BC), No CE pin
Top=25°C
Min. Typ. Max. Unit
1.764 1.800 1.836
V
300
mA
0.02 0.20 %/V
5
20
mV
145 230
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
Vout=2.5V(ELM89251BC), No CE pin
Top=25°C
Min. Typ. Max. Unit
2.450 2.500 2.550
V
300
mA
0.02 0.20 %/V
5
20
mV
120 190
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
20 - 3
ELM89xxxBC
CMOS 300mA LDO Voltage regulator
Vout=3.0V(ELM89301BC), No CE pin
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Parameter
Output voltage
Output current
Input stability
Load stability
Input-Output voltage differential
Current consumption
Input voltage
Output voltage
temperature coefficient
Short circuit current
Ripple rejection ratio
Thermal shutdown temparature
Output noise
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Symbol
Vout
Iout
ΔVout/ΔVin
ΔVout/ΔIout
Vdif
Iss
Vin
ΔVout/ΔTop
Ilim
RR
Tsd
Vno
Condition
Vin=4.0V, Iout=40mA
Vin=4.0V
Iout=40mA, 3.5V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=4.0V
Iout=100mA
Vin=4.0V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=4.0V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Condition
Vin=4.3V, Iout=40mA
Vin=4.3V
Iout=40mA, 3.8V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=4.3V
Iout=100mA
Vin=4.3V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=4.3V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Condition
Vin=6.0V, Iout=40mA
Vin=6.0V
Iout=40mA, 5.5V≤Vin≤6.0V
1mA≤Iout≤100mA, Vin=6.0V
Iout=100mA
Vin=6.0V, No-load
-40°C≤Top≤+85°C,
Iout=40mA, Vin=6.0V
Vout=0V
f=1kHz, Iout=40mA
BW=10Hz to 100kHz
Top=25°C
Min. Typ. Max. Unit
2.940 3.000 3.060
V
300
mA
0.02 0.20 %/V
5
20
mV
110 175
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
Vout=3.3V(ELM89331BC), No CE pin
Top=25°C
Min. Typ. Max. Unit
3.234 3.300 3.366
V
300
mA
0.02 0.20 %/V
5
20
mV
110 175
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
Vout=5.0V(ELM89501BC), No CE pin
Top=25°C
Min. Typ. Max. Unit
4.900 5.000 5.100
V
300
mA
0.02 0.20 %/V
5
20
mV
100 160
mV
15
50
μA
1.4
6.0
V
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
20 - 4
ELM89xxxBC
CMOS 300mA LDO Voltage regulator
■Electrical characteristics (ELM89xx2BC)
Vout=1.8V(ELM89182BC), CE=”L”active
Parameter
Symbol
Condition
Output voltage
Vout
Vin=2.8V, Iout=40mA
Output current
Iout
Vin=2.8V
Input stability
ΔVout/ΔVin Iout=40mA, 2.3V≤Vin≤6.0V
Load stability
ΔVout/ΔIout 1mA≤Iout≤100mA, Vin=2.8V
Input-Output voltage differential
Vdif
Iout=100mA
Current consumption
Iss
Vin=2.8V, No-load
Stand-by current consumption
Istandby Vin=Vce=2.8V
Input voltage
Vin
Vceh
Vin=6.0V
CE input voltage High
Vcel
Vin=1.4V
CE input voltage Low
Iceh
Vce=Vin=6.0V
CE input current High
Icel
Vce=Vss, Vin=6.0V
CE input current Low
Output voltage
-40°C≤Top≤+85°C,
ΔVout/ΔTop
temperature coefficient
Iout=40mA, Vin=2.8V
Short circuit current
Ilim
Vout=0V
Ripple rejection ratio
RR
f=1kHz, Iout=40mA
Thermal shutdown temparature
Tsd
Output noise
Vno
BW=10Hz to 100kHz
Top=25°C
Min. Typ. Max. Unit
1.764 1.800 1.836
V
300
mA
0.02 0.20 %/V
5
20
mV
145 230
mV
15
50
μA
0.5
μA
1.4
6.0
V
1.8
Vin
V
0.0
0.2
V
-0.2
0.0
0.2
μA
-0.2
0.0
0.2
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
■Electrical characteristics (ELM89xx3BC)
Vout=1.2V(ELM89123BC), CE=”H”active
Parameter
Symbol
Condition
Output voltage
Vout
Vin=2.2V, Iout=40mA
Output current
Iout
Vin=2.2V
Input stability
ΔVout/ΔVin Iout=40mA, 1.7V≤Vin≤6.0V
Load stability
ΔVout/ΔIout 1mA≤Iout≤100mA, Vin=2.2V
Input-Output voltage differential
Vdif
Iout=100mA
Current consumption
Iss
Vin=2.2V, No-load
Stand-by current consumption
Istandby Vin=2.2V, Vce=0
Input voltage
Vin
CE input voltage High
Vceh
Vin=6.0V
CE input voltage Low
Vcel
Vin=1.4V
CE input current High
Iceh
Vce=Vin=6.0V
CE input current Low
Icel
Vce=Vss, Vin=6.0V
Output voltage
-40°C≤Top≤+85°C,
ΔVout/ΔTop
temperature coefficient
Iout=40mA, Vin=2.2V
Short circuit current
Ilim
Vout=0V
Ripple rejection ratio
RR
f=1kHz, Iout=40mA
Thermal shutdown temparature
Tsd
Output noise
Vno
BW=10Hz to 100kHz
Top=25°C
Min. Typ. Max. Unit
1.170 1.200 1.230
V
300
mA
0.05 0.20 %/V
5
20
mV
380 620
mV
15
50
μA
0.5
μA
1.4
6.0
V
1.8
Vin
V
0.0
0.2
V
-0.2
0.0
0.2
μA
-0.2
0.0
0.2
±
100
ppm/°C
mA
dB
°C
μVrms
40
60
165
30
20 - 5
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