UNISONIC TECHNOLOGIES CO., LTD LD1117/A
LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
DESCRIPTION
The UTC LD1117/A is a low dropout, 3-terminal positive voltage regulator designed to provide output current up to 800mA/1A, There are adjustable version (VREF=1.25V) and various fixed versions.
LINEAR INTEGRATED CIRCUIT
FEATURES
* Low dropout voltage * Suitable for SCSI-2 active termination if VOUT set to 2.85V * Output current up to 0.8A for 1117 and 1.0A for 1117A * Built-in current limit and over temperature protection * Available in ±1%(at 25°C) and 2% in all temperature range * Low current consumption
*Pb-free plating product number: LD1117L-xx / LD1117AL-xx
ORDERING INFORMATION
Order Number Normal Lead Free Plating LD1117①-xx-AA3-②-③ LD1117①L-xx-AA3-②-③ LD1117①-xx-AB3-②-③ LD1117①L-xx-AB3-②-③ LD1117①-xx-TA3-②-③ LD1117①L-xx-TA3-②-③ LD1117①-xx-TN3-②-③ LD1117①L-xx-TN3-②-③ LD1117①-xx-TQ2-②-③ LD1117①L-xx-TQ2-②-③ LD1117①-xx-TQ3-②-③ LD1117①L-xx-TQ3-②-③ LD1117①-xx-S08-②-③ LD1117①L-xx-S08-②-③ Note: Pin Assignment: I:VIN O:VOUT G:GND Package SOT-223 SOT-89 TO-220 TO-252 TO-263 TO-263-3 SOP-8 ② Pin Assignment A: GOI B: OGI C: GIO D: IGO GOOIxOOx ③ Packing
R: Tape Reel T: Tube
www.unisonic.com.tw Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 12
QW-R102-006,Q
LD1117/A
MARKING INFORMATION
PACKAGE VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-89
SOT-223
12 15 18 25 2J 30 33 36 50 AD
:1.2V :1.5V :1.8V :2.5V :2.85V :3.0V :3.3V :3.6V :5.0V :ADJ
TO-220 TO-252 TO-263 TO-263-3 Note: Current code: Blank: 0.8A A: 1A
PIN CONFIGURATION
GND
1
8
NC
VOUT
2
7
VOUT
VOUT
3
6
VOUT
VIN
4
5
NC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 12
QW-R102-006,Q
LD1117/A
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 12
QW-R102-006,Q
LD1117/A
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS DC Input Voltage VIN 18 Power Dissipation PD Internally limited Junction Temperature TJ +150 Storage temperature TSTG -65 ~ +150 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.
UNIT V °C °C
RECOMMENDED OPERATING RATINGS
PARAMETER Input Voltage Operating Junction Temperature Range SYMBOL VIN TJ RATINGS 15 0 ~ +125 UNIT V °C
ELECTRICAL CHARACTERISTICS
(Ta=25℃, refer to the test circuits, TJ=0 to 125°C, Co=10μF unless otherwise specified) For LD1117/A-1.2 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Minimum Load Current Output Noise Voltage Supply Voltage Rejection SYMBOL TEST CONDITIONS VOUT VIN=3.2V, IOUT=10mA, TJ=25°C VIN=2.7 to 8V VOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A ΔVOUT VIN=2.7 to 8V, IOUT=0mA VIN=2.7V ΔVOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA ΔVOUT ΔVOUT 1000 hrs, TJ =125°C VIN IOUT=100mA IQ VIN≤10V LD1117 ILIMIT VIN=6.2V, TJ =25°C LD1117A IO(MIN) VIN=15V eN B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, SVR VIN=4.2V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse MIN. 1.188 1.176 TYP. 1.200 1.200 1 1 0.5 0.3 5 800 1000 2 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10 5 15 10 MAX. 1.212 1.224 6 10 UNIT V V mV mV % % V mA mA mA μV dB V V V V %/W
Dropout Voltage Thermal Regulation
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/A-1.5 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
LINEAR INTEGRATED CIRCUIT
Dropout Voltage Thermal Regulation For LD1117/A-1.8 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
SYMBOL TEST CONDITIONS VOUT VIN=3.5V, IOUT=10mA, TJ=25°C VIN=3 to 8V VOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A ΔVOUT VIN=3 to 8V, IOUT=0mA VIN=3V ΔVOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA ΔVOUT ΔVOUT 1000 hrs, TJ =125°C VIN IOUT=100mA IQ VIN≤10V LD1117 ILIMIT VIN=6.5V, TJ =25°C LD1117A eN B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, SVR VIN=4.5V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse
MIN. 1.485 1.470
TYP. 1.500 1.500 1 1 0.5 0.3 5
MAX. 1.515 1.530 6 10
UNIT V V mV mV % % V mA mA
15 10
800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10
μV dB V V V V %/W
Dropout Voltage Thermal Regulation
SYMBOL TEST CONDITIONS VOUT VIN=3.8V, IOUT=10mA, TJ =25°C VIN=3.3 to 8V VOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA ΔVOUT VIN=3.3 to 8V, IOUT=0mA VIN=3.3V ΔVOUT LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA ΔVOUT ΔVOUT 1000 hrs, TJ =125°C VIN IOUT=100mA IQ VIN≤8V LD1117 ILIMIT VIN=6.8V, TJ =25°C LD1117A eN B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, SVR VIN=5.5V, Vripple=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse
MIN. 1.780 1.760
TYP. 1.800 1.800 1 1 0.5 0.3 5
MAX. 1.820 1.840 6 10
UNIT V V mV mV % % V mA mA
10 10
800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10
μV dB V V V V %/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/A-2.5 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS VIN=4.5V,IOUT=10mA, TJ=25°C VIN=3.9 to 10V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=3.9 to 10V, IOUT=0mA VIN=3.9V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤10V
1% 2% 2% 4%
MIN. 2.475 2.450 2.450 2.400
TYP. 2.500 2.500 2.500 2.500 1 1 0.5 0.3 5
MAX. 2.525 2.550 2.550 2.600 6 10
UNIT V V mV mV % % V mA mA
15 10
Dropout Voltage Thermal Regulation For LD1117/A-2.85 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
VD
LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=5.5V, Vripple=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=7.5V, TJ =25°C TEST CONDITIONS VIN=4.85V, IOUT=10mA, TJ =25°C VIN=4.25 to 10V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=4.25 to 10V, Io=0mA VIN=4.25V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤10V LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=5.85V, Vripple=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=7.85V, TJ =25°C
800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 MIN. 2.828 2.790 TYP. 2.850 2.850 1 1 0.5 0.3 5 800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10 15 10 1.10 1.25 1.30 1.30 0.10 MAX. 2.880 2.910 6 10
μV dB V V V V %/W UNIT V V mV mV % % V mA mA μV dB V V V V %/W
SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
Dropout Voltage Thermal Regulation
VD
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/A-3.0 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS VIN=5V,IOUT=10mA,TJ =25°C VIN=4.5 to 10V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=4.5 to 12V, IOUT=0mA VIN=4.5V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤10V LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=6V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=8V, TJ =25°C TEST CONDITIONS VIN=5.3V,IOUT=10mA, TJ=25°C VIN=4.75 to 10V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=4.75 to 15V, IOUT=0mA VIN=4.75V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤15V LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=6.3V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=8.3V, TJ =25°C 1% 2% 2% 4%
MIN. 2.970 2.940 2.940 2.880
TYP. 3.000 3.000 3.000 3.000 1 1 0.5 0.3 5
MAX. 3.030 3.060 3.060 3.120 6 10
UNIT V V mV mV % % V mA mA
15 10
800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 MIN. 3.267 3.235 3.235 3.160 TYP. 3.300 3.300 3.300 3.300 1 1 0.5 0.3 5 800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10 15 10 1.10 1.25 1.30 1.30 0.10 MAX. 3.333 3.365 3.365 3.440 6 10
μV dB V V V V %/W UNIT V V mV mV % % V mA mA μV dB V V V V %/W
Dropout Voltage Thermal Regulation For LD1117/A-3.3 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
VD
SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
1% 2% 2% 4%
Dropout Voltage Thermal Regulation
VD
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
7 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/A-3.6 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS VIN=5.6V, IOUT=10mA, TJ =25°C VIN=5 to 10V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=5 to 15V, IOUT=0mA VIN=5V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤15V LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=6.6V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=8.6V, Tj=25°C TEST CONDITIONS VIN=7V,IOUT=10mA, TJ =25°C VIN=6.5 to 15V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1.0A VIN=6.5 to 15V, IOUT=0mA VIN=6.5V LD1117 : IOUT=0 ~ 800mA LD1117A : IOUT=0 ~ 1000mA 1000 hrs, TJ =125°C IOUT=100mA VIN≤15V LD1117 LD1117A B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, VIN=8V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA IOUT=800mA IOUT=1000 mA Ta=25°C, 30ms Pulse VIN=10V, TJ =25°C 1% 2% 2% 4%
MIN. 3.564 3.528
TYP. 3.600 3.600 1 1 0.5 0.3 5
MAX. 3.636 3.672 6 10
UNIT V V mV mV % % V mA mA
15 10
800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 MIN. 4.950 4.900 4.900 4.800 TYP. 5.000 5.000 5.000 5.000 1 1 0.5 0.3 5 800 1000 100 60 75 1.00 1.15 1.20 1.20 0.01 1.10 1.25 1.30 1.30 0.10 15 10 1.10 1.25 1.30 1.30 0.10 MAX. 5.050 5.100 5.100 5.200 6 10
μV dB V V V V %/W UNIT V V mV mV % % V mA mA μV dB V V V V %/W
Dropout Voltage Thermal Regulation For LD1117/A-5.0 PARAMETER Output Voltage Output Voltage Line Regulation Load Regulation Temperature stability Long Term Stability Operating Input Voltage Quiescent Current Current Limit Output Noise Voltage Supply Voltage Rejection
VD
SYMBOL VOUT VOUT ΔVOUT ΔVOUT ΔVOUT ΔVOUT VIN IQ ILIMIT eN SVR
Dropout Voltage Thermal Regulation
VD
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
8 of 12
QW-R102-006,Q
LD1117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD1117/A-ADJUSTABLE PARAMETER Reference Voltage
LINEAR INTEGRATED CIRCUIT
SYMBOL TEST CONDITIONS VREF VIN-VOUT=2V, IOUT=10mA, TJ =25°C VIN-VOUT=1.4 to 10V Reference Voltage VREF LD1117 : IOUT=10 ~ 800mA LD1117A : IOUT=10 ~ 1000mA Line Regulation ΔVOUT VIN-VOUT=1.5 to 13.75V, IOUT=10mA VIN-VOUT=3V Load Regulation ΔVOUT LD1117 : IOUT=10 ~ 800mA LD1117A : IOUT=10 ~ 1000mA Temperature stability ΔVOUT Long Term Stability ΔVOUT 1000 hrs, TJ =125°C Operating Input Voltage VIN Adjustment Pin Current IADJ VIN≤15V VIN-VOUT=1.4 to 10V, Adjustment Pin Current Change ΔIADJ LD1117 : IOUT=10 ~ 800mA LD1117A : IOUT=10 ~ 1000mA Minimum Load Current IO(MIN) VIN=15V LD1117 Current Limit ILIMIT VIN-VOUT=5V, TJ =25°C LD1117A Output Noise (%Vo) eN B=10Hz to 10KHz, TJ =25°C IOUT=40mA, f=120Hz, TJ =25°C, Supply Voltage Rejection SVR VIN-VOUT=3V, Vripple=1Vpp IOUT=100mA IOUT=500mA Dropout Voltage VD IOUT=800mA IOUT=1000mA Thermal Regulation Ta=25°C, 30ms Pulse
MIN 1.238 1.225
TYP 1.25
MAX 1.262 1.275
UNIT V V % % % % V μA μA mA mA
0.035 0.10 0.50 0.3 60 1 2 800 1000 0.003 60 75 1.00 1.15 1.20 1.20 0.01
0.200 0.400
15 120 5 5
% dB 1.10 1.25 1.30 1.30 0.10 V V V V %/W
THERMAL DATA
PARAMETER SOT-223 SOP-8 Thermal Resistance Junction-Case TO-252 TO-220 TO-263 SOT-223 SOP-8 TO-252 TO-220 TO-263 θJC SYMBOL RATINGS 15 20 12 4 4 165 150 112 54 64 °C/W UNIT
Thermal Resistance Junction-Ambient
θJA
°C/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
9 of 12
QW-R102-006,Q
LD1117/A
TYPICAL APPLICATIONS
LINEAR INTEGRATED CIRCUIT
UTC LD1117/A-5.0V VIN + 10μF Floating Input FIG.1 Negative Supply IN GND OUT + 100μF
VOUT = -5V
110 110 UTC LD1117/A2.85V IN + 4.75V to 5.25V 10μF GND + 22μF 110 110 18-27 Lines
FIG.2 Active Terminator for SCSI-2 BUS
FIG.3 Circuit for Increasing Output Voltage
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
10 of 12
QW-R102-006,Q
LD1117/A
APPLICATION NOTE of LD1117/A ADJUSTABLE
LINEAR INTEGRATED CIRCUIT
The LD1117/A ADJUSTABLE has a reference voltage of between the OUT and ADJ pins. IADJ is 60μA typ. (120μA max.) and ΔIADJ is 1μA typ. (5μA max.). R1 is normally fixed to 120Ω. From figure 4 we obtain: VOUT=VREF+R2(IADJ + IR1)=VREF + R2(IADJ + VREF / R1)=VREF(1+R2/R1) + R2 x IADJ. Usually R2 value is in the range of few KΩ, so the R2 X IADJ product could be neglected; then the above expression becomes: VOUT=VREF(1+R2/R1) For better load regulation, realize a good Kelvin connection of R1 and R2 is important. Particularly R1 connection must be realized very close to OUT and ADJ pin, while R2 ground connection must be placed as near as possible to the negative Load pin. Ripple rejection can be improved by introducing a 10μF electrolytic capacitor placed in parallel to the R2 resistor (See Fig. 5) UTC LD1117/A VIN 10μF + IN ADJ R1 120Ω VREF OUT + 10μF VOUT
R2
FIG.4 Adjustable Output Voltage Application Circuit
FIG.5 Adjustable Output Voltage Application with improved Ripple Rejection.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
11 of 12
QW-R102-006,Q
LD1117/A
TYPICAL PERFORMANCE CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
Reference Voltage (V)
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) 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 systems where malfunction 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 information presented in this document 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 12 of 12
QW-R102-006,Q
Power (W)
Output Voltage(V)