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UNISONIC TECHNOLOGIES CO., LTD UR533
5A ADJUSTABLE/FIXED ULTRA LOW DROP-OUT LINEAR REGULATOR
DESCRIPTION
The UTC UR533 is ultra-low dropout regulators with 5A output current capability. This device has been optimized for low voltage applications including VTT bus termination, where transient response and minimum input voltage is critical. The UTC UR533 is ideal for low voltage microprocessor applications requiring a regulated output from 1.3V ~ 5.7V with a power input supply of 1.75V ~ 6.5V. Current limit ensures controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures.
1
LINEAR INTEGRATED CIRCUIT
1
TO-263-5
TO-252-5
1
TO-220-5
*Pb-free plating product number: UR533L
FEATURES
* Ultra Low dropout voltage * Remote sense operation * Fast transient response * Load regulation: 0.05% typical * 0.5% initial accuracy * On-chip thermal limiting
ORDERING INFORMATION
Order Number Normal Lead Free Plating UR533-xx-TQ5-R UR533L-xx-TQ5-R UR533-xx-TQ5-T UR533L-xx-TQ5-T UR533-xx-TN5-R UR533L-xx-TN5-R UR533-xx-TN5-T UR533L-xx-TN5-T UR533-xx-TA5-T UR533L-xx-TA5-T Package TO-263-5 TO-263-5 TO-252-5 TO-252-5 TO-220-5 Packing Tape Reel Tube Tape Reel Tube Tube
Note: xx: Output Voltage, refer to Marking Information.
UR533L-xx-TQ5-R (1)Packing Type (2)Package Type (3)Output Voltage Code (4)Lead Plating (1) R: Tape Reel, T:Tube (2) TQ5: TO-263-5, TN5: TO-252-5, TA5: TO-220-5 (3) xx: refer to Marking Information (4) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
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MARKING INFORMATION
PACKAGE VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
TO-220-5 TO-252-5 TO-263-5
15 :1.5V 25 :2.5V AD:ADJ
UTC UR533
VOLTAGE CODE DATE CODE
12345
PIN DESCRITIONS
PIN NO 1 2 3 4 5 PIN NAME DESCRITION VSENSE Remote Voltage Sense. Adjust for UR533-ADJ, the output voltage determined by feedback voltage. ADJ/GND Ground for fixed output products(UR533-xx) VOUT Output Voltage. VCNTL Control Voltage. VIN Input Voltage.
THERMAL DATA
PARAMETER Thermal Resistance Junction-Case TO-220-5 TO-252-5 TO-263-5 SYMBOL
JC
RATINGS 3 8 4
UNIT /W
BLOCK DIAGRAM
4 VCNTL, CONTROL Thermal Shutdown Current Limit 3 1 2 OUTPUT SENSE ADJ/GND 5 VIN, POWER
VREF
Voltage Loop Amplifier
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ABSOLUTE MAXIMUM RATINGS (Ta = 25 )
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN 7 V Control Voltage VCNTL 13.2 V Operating Junction Temperature TOPR 0 ~ +125 - ~ +150 Storage Temperature TSTG 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(TC= 25 , VOUT = VS, VADJ = 0V unless otherwise specified.) For UR533-AD(Adjustable)
PARAMETER Reference Voltage Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Control Pin Current Adjust Pin Current Minimum Load Current Ripple Rejection Thermal Regulation Thermal Shutdown SYMBOL VREF VOUT VOUT VOUT VCNTL-VOUT VIN -VOUT ILIMIT ICTRL IADJ ILOAD RR TEST CONDITIONS VIN = 2.0V, VCNTL = 2.75V,IOUT = 10mA 2.05V VIN 5.5V,2.7V VCNTL 12V, 10mA IOUT 5A 3V VIN 7V, 10mA IOUT 5A 1.75V VIN 5.5V, 2.5V VCNTL 12V, IOUT = 10mA VIN = 2.1V, VCNTL = 2.75V, 10mA IOUT 5A VIN = 2.05V, VREF = 1%, IOUT = 5A VCNTL = 2.75V, VREF = 1%,IOUT = 5A VIN = 2.05V, VCNTL = 2.75V VIN = 2.05V, VCNTL = 2.75V,IOUT = 10mA VIN = 2.05V, VCNTL = 2.75V VIN = 3.3V, VCNTL = 5V VIN = 3.75V, VCNTL = 3.75V, f = 120Hz, COUT = 22F Tantalum, IOUT = 2.5A Ta = 25C, 30ms pulse MIN TYP MAX UNIT 1.243 1.250 1.257 V 1.237 1.250 1.263 VREF 1.5 1 1 1.05 0.4 5.2 2 50 5.0 80 0.002 0.02 150 6 120 10 5.7 3 5 1.18 0.5 V V mV mV V V A mA A mA dB %/W
For UR533-xx(Fixed)
PARAMETER UR533-15 Output Voltage UR533-25 Line Regulation Load Regulation Dropout Voltage Dropout Voltage Current Limit Control Pin Current Minimum Load Current Ripple Rejection Thermal Regulation Thermal Shutdown SYMBOL VOUT VOUT VOUT VOUT VCNTL-VOUT VIN -VOUT ILIMIT ICTRL ILOAD RR TEST CONDITIONS 3V VIN 7V, 10mA IOUT 5A 5.1V VIN 7V, 10mA IOUT 5A 1.75V VIN 5.5V, 2.5V VCNTL 12V, IOUT = 10mA VIN = 2.1V, VCNTL = 2.75V, 10mA IOUT 5A VIN = 2.05V, VREF = 1%, IOUT = 5A VCNTL = 2.75V, VREF = 1%,IOUT = 5A VIN = 2.05V, VCNTL = 2.75V VIN = 2.05V, VCNTL = 2.75V,IOUT = 10mA VIN = 3.3V, VCNTL = 5V VIN = 3.75V, VCNTL = 3.75V, f = 120Hz, COUT = 22F Tantalum, IOUT = 2.5A Ta = 25C, 30ms pulse MIN 1.47 2.474 TYP 1.5 2.5 1 1 1.05 0.4 5.2 2 5.0 80 0.002 150 0.02 6 10 MAX UNIT 1.53 V 2.526 V 3 5 1.18 0.5 mV mV V V A mA mA dB %/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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TYPICAL APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
FOR ADJUSTABLE VERSION
VCNTL
VIN C1 10 + F
VCNTL
VIN
VSENSE ADJ VOUT VREF R1 + C2 22 VOUT
UTC UR533-ADJ
F
IADJ 50 A VOUT = VREF (1+R2/R1) + IADJ (R2)
R2
Note : C2 is recommended to use 22F solid tantalum or 100F aluminum electrolytic for output stability.
FOR FIXED OUTPUT VERSION
VIN= 2.5V C1 10 F VCNTL= 3.3V C2 1F +
VIN
VSENSE
UTC UR533-1.5 VOUT VCNTL GND + C3 100 1.5V at 5A
F
Note : C3 is recommended to use 22F solid tantalum or 100F aluminum electrolytic for output stability.
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www.unisonic.com.tw
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TYPICAL PERFOMANCE CHARACTERISTICS
Dropout Voltage vs Output Current 1.0 Output Voltage Deviation ( ) 0.9 Dropout Voltage (V) 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 Ta=25 Ta=0 Ta=125
LINEAR INTEGRATED CIRCUIT
Load Regulation vs Temperature 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 0 25 50 75 100 125 150 175 I=5A
0
1
2
3
4
5
Output Current (A)
Junction Temperature ( )
Reference Voltage vs Temperature 1.275 Output Voltage Deviation (%) 1.270 1.265 1.260 1.255 1.250 1.245 1.240 1.235 1.230 1.225 UR533-ADJ Short-Circuit Current (A) 11
Short-Circuit Current vs Temeperature UR533-ADJ
9
7
5
0
25
50
75
100 125 150 175
3
0
25 50
75 100 125 150 175
Junction Temperature ( )
Ripple Rejection vs Frequency 90 80
Ripple Rejections (dB)
Junction Temperature ( )
70 60 50 40 30 20 10 0 10
(VIN VOUT ) 3V 0.5V VRIPPLE 2V I OUT = 5A
100
1k 10k Frequency (HZ)
100k
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LINEAR INTEGRATED CIRCUIT
UTC assumes no responsibility for equipm ent failures that result from using products at values that exceed, even mom entarily, rated values (such as m aximum ratings, operating condition ranges, or other param eters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or system s where m alfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The inform ation presented in this docum ent does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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