ACUTECH AQ102BY-C5-06-TRL

AQ102
Low-Voltage Ref/Amplifier
SOT23-5 and SC70-5 Package
Product Specification
Revision 1.3
General Description
The AQ102 is a low voltage combined
reference/amplifier suited for the control loop
of low voltage power supplies. In order to
allow operation down to very low voltages,
the error amplifier output and the supply
terminal have been isolated to separate
functional pins. The nominal reference
voltage is 600 mV, the COMP output can
sink 20mA at 300mV.
Functionally, the AQ120 can be applied
similarly to industry standard TL431, except
that the reference is 600 mV and this requires a
separate Vcc connection to a supply above
2.2V. Additionally, the output of the AQ120 can
swing close to ground.
In the SC-70 package, the AQ102 is a
replacement for the MAX8515 part.
Block Diagram
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May 3, 2005
Applications
• Power supply control loop
• Power supply supervisory functions
Features
• Low input voltage reference
• 600mV high accuracy voltage reference
• Low TC voltage reference
• High PSRR and line regulation
• Low current consumption
• Offered in ultra small SC70-5 package
• Zero offset error amplifier
• Open collector output
• RoHS compliant
Pin Configuration
AQ102
AQ102
Acutechnology Semiconductor Inc.
Typical Application
Pin Descriptions
Pin
Pin Name
Function
1
FB
2
GND
3
COMP
4
N/C
-
5
VCC
Positive supply
Inverting input to error amplifier; will have
threshold of 600mV.
Ground
Output of error amplifier; 20 mA source/sink
capability
Ordering Information
Device
Operating Tj
%Tol
AQ102
-40C˚ ≤ 105C˚
1.0
AQ102
-40C˚ ≤ 105C˚
1.0
Note: The
VOUT
Wrap
Ordering Number
SOT-23-5
0.6V
T&R
AQ102BY-M5-06-TRL
SC70-5
0.6V
T&R
AQ102BY-C5-06-TRL
Pkg Type
TRL parts are Lead Free and RoHS compliant.
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Rev. 1.3
May 3, 2005
AQ102
Acutechnology Semiconductor Inc.
Absolute Maximum Ratings
Parameter
Value
Units
VCC Voltage
20
V
COMP Voltage
20
V
REF Voltage
20
V
VCC, COMP, REF Current
50
mA
Operating Junction Temperature
150
ºC
Lead Temperature (soldering 10 seconds)
260
ºC
-65 to +150
ºC
Storage Temperature Range
Electrical Specifications
Electrical characteristics are guaranteed over the full temperature range –40ºC <Tj<105ºC. Ambient
temperature must be de-rated based upon power dissipation and package thermal characteristics. Unless
otherwise stated, test conditions are VCC = 3V, VCOMP = VFB, ICOMP = 1mA
Symbol
Parameter
Vccmin
Minimum Input Voltage
Conditions
Icc
Quiescent Supply Current
Vcc
Supply Voltage
Vref
Reference Voltage
DVcc
Line regulation
2.2V < VCC < 18V
Load Regulation
Reference Temperature Deviation
DViload
Tcref
IFB
PSRR
Min
VCOMP=1V
Typ
0.3
2.2
Tj=25ºC
594
-40ºC <Tj<105ºC
592
600
Max
Units
2.2
V
0.5
mA
18
V
606
608
mV
0.5
1
mV
ICOMP=1mA to 10mA
4
8
mV
-40ºC <Tj<105ºC
25
50
ppm/ºC
500
nA
REF input current
-500
Reference Power Supply Rejection
Freq.=300KHz
35
45
dB
Av
Error Amplifier Open Loop Gain
ICOMP=2mA, COMP=1V
60
80
dB
BW
Unity Gain Frequency
ICOMP=2mA, COMP=1V
1
2
MHz
VCOMP
Output Saturation Voltage
ICOMP=20mA, VFB=
700mV
100
TRANSC
Output Transconductance
ICOMP=1mA to 20mA
2.5
Output Leakage Current
VCOMP=16 VFB=0
200
Ileak
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Rev. 1.3
250
mV
mA/mV
400
nA
May 3, 2005
AQ102
Acutechnology Semiconductor Inc.
Typical Performance Characteristics
Load regulation
Line regulation (at 1mA)
6
Output voltage change (mV)
Output voltage change (mV)
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
2.2
6
10
14
5
4
3
2
1
0
18
1
5
Supply voltage (V)
15
20
Load current (mA)
Supply current vs load current
Power-supply rejection ratio vs frequency
300
-50
280
-55
260
-60
240
-65
PSRR (dB)
Supply current (uA)
10
220
200
180
-70
-75
-80
-85
160
-90
140
-95
120
-100
100
0
5
10
15
0.1
20
Load current (m A)
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1
10
100
1000
10000 100000
Frequency (Hz)
4
Rev. 1.3
May 3, 2005
AQ102
Acutechnology Semiconductor Inc.
Typical Performance Characteristics (contd.)
[email protected]
FB Bias current vs Tem perature
Vcc=2.5V
630
0
620
Reference voltage (V)
FB bias current (nA)
-10
-20
-30
-40
-50
610
600
590
580
-60
-70
-40
0
40
80
570
120
-40
Tem perature (degrees C)
0
40
80
120
Temperature (degrees C)
Gain vs. Frequency
110
90
Gain (dB)
70
50
30
10
-10
0.01
0.1
1
10
100
1000 10000
Frequency (KHz)
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Rev. 1.3
May 3, 2005
AQ102
Acutechnology Semiconductor Inc.
Package Dimensions
SOT23-3, SOT23-4, SOT23-5, SOT23-6
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6
Rev. 1.3
May 3, 2005
AQ102
Acutechnology Semiconductor Inc.
Package Dimensions (contd.)
SC70-3, SC70-4, SC70-5, SC70-6
Contact Information
Acutechnology Semiconductor Inc.
3487 McKee Rd. Suite 52
San Jose CA , USA 95127
TEL:
FAX:
website:
(408) 259-2300
(408) 259-9160
www.acutechnology.com
Disclaimer
The information furnished by Acutechnology in this data sheet is believed to be accurate and reliable. However,
Acutechnology assumes no responsibility for its use. Acutechnology reserves the right to change circuitry and specifications
at any time without notification to the customer.
Life Support Policy
Acutechnology Products are not designed or authorized for use as components in life support devices or systems where
malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are
devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to
perform can be reasonably expected to result in a significant injury to the user.
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Rev. 1.3
May 3, 2005