UNISONIC TECHNOLOGIES CO., LTD
UM605A/B
OPERATIONAL AMPLIFIERS
WITH 2.5V/1.25V SHUNT
REGULATOR
DESCRIPTION
UTC
UM605A/B
that is designed to include 2 op amp and one
shunt regulator for battery charger and AC adapter application.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Small SOT-25 package
* Internal accurate 2.5V / 1.25V V
REF
* Reduced external components
ORDERING INFORMATION
Ordering Number
Lead Free
UM605AL-AF5-R
UM605BL-AF5-R
Halogen Free
UM605AG-AF5-R
UM605BG-AF5-R
Package
SOT-25
SOT-25
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 6
QW-R105-033.E
UM605A/B
MARKING
UM605A
LINEAR INTEGRATED CIRCUIT
UM605B
5
4
UME2
1
2
3
L : Lead Free
G: Halogen Free
PIN DESCRIPTION
PIN NO.
PIN NAME
FUNCTION
INTERNAL CIRCUIT DIAGRAM
1
1
OUT
Output Pin
2
3
GND
IN
B
Ground
Input Pin
4
5
IN
A
V
CC
Supply Voltage
3
4
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www.unisonic.com.tw
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QW-R105-033.E
UM605A/B
BLOCK DIAGRAM
UM605A
V
CC
5
LINEAR INTEGRATED CIRCUIT
IN
A
4
5.9K
REF
+
2.5V
43K
+
2.8K
-
+
-
1
OUT
2
GND
3
IN
B
UM605B
V
CC
5
IN
A
4
5.9K
+
2.5V 23K
20K
REF
+
-
+
2.8K
-
1
OUT
2
GND
3
IN
B
UNISONIC TECHNOLOGIES CO., LTD
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QW-R105-033.E
UM605A/B
PARAMETER
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25℃, unless otherwise specified.)
SYMBOL
RATINGS
UNIT
Supply Voltage
V
CC
-0.3 ~ +20
V
Recommended Operating Voltage
V
OPR
+4 ~ +20
V
Power Dissipation
P
D
250
mW
Operating Temperature
T
OPR
-25 ~ +85
°C
Storage Temperature
T
STG
-40 ~ +125
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(V
CC
=5V, T
A
=25℃, unless otherwise specified.)
FOR UM605A
PARAMETER
Current Consumption
A AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
B AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
SYMBOL
TEST CONDITIONS
I
CC
IN
A
=0V, IN
B
=0V, R
L
=∞
IN
A
=0V, R
L
=4.3k
I
O(SINK A)
IN
B
=2.7V, IN
A
=0V, V
OUT
=1.5V
I
I(BIAS A)
IN
A
=0V, R
L
=4.3k
PSRR(A) IN
A
=0V, R
L
=4.3k
IN
B
=0V, R
L
=4.3k
I
O(SINK B)
IN
B
=0V, IN
A
=0.17V, V
OUT
=1.5V
I
I(BIAS B)
IN
B
=0V, R
L
=4.3k
PSRR(B) IN
B
=0V, R
L
=4.3k
SYMBOL
TEST CONDITIONS
I
CC
IN
A
=0V, IN
B
=0V, R
L
=∞
IN
A
=0V, R
L
=4.3k
I
O(SINK A)
IN
B
=2.7V, IN
A
=0V, V
OUT
=1.5V
I
I(BIAS A)
IN
A
=0V, R
L
=4.3k
PSRR(A) IN
A
=0V, R
L
=4.3k
IN
B
=0V, R
L
=4.3k
I
O(SINK B)
IN
B
=0V, IN
A
=0.17V, V
OUT
=1.5V
I
I(BIAS B)
IN
B
=0V, R
L
=4.3k
PSRR(B) IN
B
=0V, R
L
=4.3k
V
B
V
A
V
B
V
A
MIN
TYP
2.4
2.50
50
50
152
5
50
65
MIN
TYP
1.2
1.25
50
62
152
5
50
65
160
140
MAX
1.7
1.275
140
160
140
MAX
3.4
2.55
140
UNIT
mA
V
mA
nA
dB
mV
mA
nA
dB
UNIT
mA
V
mA
nA
dB
mV
mA
nA
dB
2.45
5
FOR UM605B
PARAMETER
Current Consumption
A AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
B AMPLIFIER
Output Inverting Voltage
Output Sink Current
Input Bias Current
PSRR
1.225
5
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R105-033.E
UM605A/B
APPLICATION CIRCUIT
0.001μ/1kV
56k
LINEAR INTEGRATED CIRCUIT
B+
68μH
2.2k
1k
+
100
51k
+
1M
5
4
0.1μF
2.2k
+
100μ
/16V
0.1μF
680μ
/8V
+
8.3μ/250V
0.022μF
+
100μ
/16V
1
2
3
0.1μF
8.2k
0.033μF
360
360
GND
0.22
2.7k
100
100
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R105-033.E
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