UNISONIC TECHNOLOGIES CO., LTD LD2117/A
LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
DESCRIPTION
The UTC LD2117/A is a low dropout, 3-terminal positive voltage regulator designed to provide output current up to 800mA/1A, There are adjustable versions (VREF=1.25V) and various fixed versions.
1
LINEAR INTEGRATED CIRCUIT
SOT-223
FEATURES
* Low dropout voltage * Suitable for SCSI-2 active termination if VOUT set to 2.85V * Output current up to 0.8A for 2117 and 1.0A for 2117A * Built-in current limit and over temperature protection * Available in ±1%(at 25°C) and 2% in all temperature range * Ultra low current consumption (0.35mA typ.) * Ultra low Adjustment Current (7μA typ.) * Ultra low minimum Load (0.3mA typ.) * Support MLCC
ORDERING INFORMATION
Lead Free Ordering Number Halogen Free LD2117 G-xx-AA3- -R A:ADJ Package Pin Assignment A: AOI B: OAI C: AIO D: IAO Packing
LD2117 L-xx-AA3- -R
SOT-223
Tape Reel
Note: Pin Assignment: I:VIN O:VOUT
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QW-R102-042.B
LD2117/A
MARKING INFORMATION
PACKAGE VOLTAGE CODE 12 :1.2V 15 :1.5V 18 :1.8V L: Lead Free 30 :3.0V G: Halogen Free 33 :3.3V Voltage Code 36 :3.6V 50 :5.0V AD :ADJ
LINEAR INTEGRATED CIRCUIT
MARKING
SOT-223
XX 1 2 3
BLOCK DIAGRAM
UNISONIC TECHNOLOGIES CO., LTD
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□
LD2117
Current Code Pin Code Date Code
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QW-R102-042.B
LD2117/A
ABSOLUTE MAXIMUM RATING (TA=25°C)
LINEAR INTEGRATED CIRCUIT
PARAMETER SYMBOL RATINGS UNIT DC Input Voltage VIN 18 V Power Dissipation PD Internally limited W Junction Temperature TJ +150 °C Storage temperature TSTG -65 ~ +150 °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.
RECOMMENDED OPERATING RATINGS
PARAMETER Input Voltage Operating Junction Temperature Range SYMBOL VIN TJ RATINGS 15 0 ~ +125 UNIT V °C
THERMAL DATA
PARAMETER Junction to Ambient Junction to Case SYMBOL θJA θJC RATINGS 165 15 UNIT °C/W °C/W
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QW-R102-042.B
LD2117/A
ELECTRICAL CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
(TA=25°C, refer to the test circuits, TJ=0 ~ 125°C, CO=10μF unless otherwise specified) For LD2117/A-1.2 PARAMETER SYMBOL TEST CONDITIONS MIN Output Voltage VOUT VIN=3.2V, IOUT=10mA, TJ=25°C 1.188 VIN=2.7 to 8V Output Voltage VOUT LD2117 : IOUT=10~800mA 1.188 LD2117A : IOUT=10~1000mA Line Regulation ΔVOUT VIN=2.7 to 8V, IOUT=10mA VIN=2.7V Load Regulation ΔVOUT LD2117 : IOUT=10~800mA LD2117A : IOUT=10~1000mA Temperature stability ΔVOUT Long Term Stability ΔVOUT 1000 hrs, TJ=125°C Operating Input Voltage VIN IOUT=100mA Quiescent Current IQ VIN≤10V LD2117 800 Current Limit ILIMIT VIN=6.2V, TJ=25°C LD2117A 1000 Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, 75 Supply Voltage Rejection SVR VIN=4.2V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA Dropout Voltage VD IOUT=800mA IOUT=1A Thermal Regulation Ta=25°C, 30ms Pulse Thermal Shutdown OTP For LD2117/A-1.5 PARAMETER SYMBOL TEST CONDITIONS MIN Output Voltage VOUT VIN=3.5V, IOUT=10mA, TJ=25°C 1.485 VIN=3 to 8V Output Voltage VOUT LD2117 : IOUT=0~800mA 1.485 LD2117A : IOUT=0~1000mA Line Regulation ΔVOUT VIN=3 to 8V, IOUT=0mA VIN=3V Load Regulation ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA Temperature stability ΔVOUT Long Term Stability ΔVOUT 1000 hrs, TJ=125°C Operating Input Voltage VIN IOUT=100mA Quiescent Current IQ VIN≤10V LD2117 800 Current Limit ILIMIT VIN=6.5V, TJ=25°C LD2117A 1000 Output Noise Voltage eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, 75 Supply Voltage Rejection SVR VIN=4.5V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA Dropout Voltage VD IOUT=800mA IOUT=1A Thermal Regulation Ta=25°C, 30ms Pulse Thermal Shutdown OTP
TYP 1.200 1.200 1 1 0.5 0.3 0.35
MAX 1.212 1.212 6 10
UNIT V V mV mV % % V mA mA
15 0.5
100
μV dB
1.05 1.15 1.18 1.22 0.01 150 TYP 1.500 1.500 1 1 0.5 0.3 0.35
1.15 1.25 1.28 1.35 0.10
V %/W °C UNIT V V mV mV % % V mA mA
MAX 1.515 1.515 6 10
15 0.5
100
μV dB
1.05 1.15 1.18 1.22 0.01 150
1.15 1.25 1.28 1.35 0.10
V %/W °C
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4 of 11
QW-R102-042.B
LD2117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD2117/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
LINEAR INTEGRATED CIRCUIT
Dropout Voltage Thermal Regulation Thermal Shutdown For LD2117/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 TEST CONDITIONS VOUT VIN=3.8V, IOUT=10mA, TJ=25°C VIN=3.3 to 8V VOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT VIN=3.3 to 8V, IOUT=0mA VIN=3.3V ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT ΔVOUT 1000 hrs, TJ=125°C VIN IOUT=100mA IQ VIN≤10V LD2117 ILIMIT VIN=6.8V, TJ=25°C LD2117A 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=1A Ta=25°C, 30ms Pulse OTP SYMBOL TEST CONDITIONS VOUT VIN=5V, IOUT=10mA, TJ=25°C VIN=4.5 to 10V VOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT VIN=4.5 to 12V, IOUT=0mA VIN=4.5V ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT ΔVOUT 1000 hrs, TJ=125°C VIN IOUT=100mA IQ VIN≤15V LD2117 ILIMIT VIN=8V, TJ=25°C LD2117A eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, SVR VIN=6V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1A Ta=25°C, 30ms Pulse OTP
MIN. 1.782 1.782
TYP. 1.800 1.800 1 1 0.5 0.3 0.35
MAX. 1.818 1.818 6 10
UNIT V V mV mV % % V mA mA
15 0.5
800 1000 100 75 1.05 1.15 1.18 1.22 0.01 150 MIN. 2.970 2.970 TYP. 3.000 3.000 1 1 0.5 0.3 0.35 800 1000 100 75 1.05 1.15 1.18 1.22 0.01 150 1.15 1.25 1.28 1.35 0.10 15 0.5 1.15 1.25 1.28 1.35 0.10
μV dB
V %/W °C UNIT V V mV mV % % V mA mA μV dB
MAX. 3.030 3.030 6 10
Dropout Voltage Thermal Regulation Thermal Shutdown
V %/W °C
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5 of 11
QW-R102-042.B
LD2117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD2117/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
LINEAR INTEGRATED CIRCUIT
Dropout Voltage Thermal Regulation Thermal Shutdown For LD2117/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 TEST CONDITIONS VOUT VIN=5.3V, IOUT=10mA, TJ=25°C VIN=4.75 to 10V VOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT VIN=4.75 to 15V, IOUT=0mA VIN=4.75V ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT ΔVOUT 1000 hrs, TJ=125°C VIN IOUT=100mA IQ VIN≤15V LD2117 ILIMIT VIN=8.3V, TJ=25°C LD2117A eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, SVR VIN=6.3V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1A TA=25°C, 30ms Pulse OTP SYMBOL TEST CONDITIONS VOUT VIN=5.6V, IOUT=10mA, TJ=25°C VIN=5 to 10V VOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT VIN=5 to 15V, IOUT=0mA VIN=5V ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT ΔVOUT 1000 hrs, TJ=125°C VIN IOUT=100mA IQ VIN≤15V LD2117 ILIMIT VIN=8.6V, TJ=25°C LD2117A eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, SVR VIN=6.6V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1A TA=25°C, 30ms Pulse OTP
MIN. 3.267 3.267
TYP. 3.300 3.300 1 1 0.5 0.3 0.35
MAX. 3.333 3.333 6 10
UNIT V V mV mV % % V mA mA
15 0.5
800 1000 100 75 1.05 1.15 1.18 1.22 0.01 150 MIN. 3.564 3.564 TYP. 3.600 3.600 1 1 0.5 0.3 0.35 800 1000 100 75 1.05 1.15 1.18 1.22 0.01 150 1.15 1.25 1.28 1.35 0.10 15 0.5 1.15 1.25 1.28 1.35 0.10
μV dB
V %/W °C UNIT V V mV mV % % V mA mA μV dB
MAX. 3.636 3.636 6 10
Dropout Voltage Thermal Regulation Thermal Shutdown
V %/W °C
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6 of 11
QW-R102-042.B
LD2117/A
ELECTRICAL CHARACTERISTICS(Cont.)
For LD2117/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
LINEAR INTEGRATED CIRCUIT
Dropout Voltage Thermal Regulation Thermal Shutdown For LD2117/A-ADJ PARAMETER Reference Voltage
SYMBOL TEST CONDITIONS VOUT VIN=7V, IOUT=10mA, TJ=25°C VIN=6.5 to 15V VOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1.0A ΔVOUT VIN=6.5 to 15V, IOUT=0mA VIN=6.5V ΔVOUT LD2117 : IOUT=0~800mA LD2117A : IOUT=0~1000mA ΔVOUT ΔVOUT 1000 hrs, TJ=125°C VIN IOUT=100mA IQ VIN≤15V LD2117 ILIMIT VIN=10V, TJ=25°C LD2117A eN B=10Hz to 10KHz, TJ=25°C IOUT=40mA, f=120Hz, TJ=25°C, SVR VIN=8V, VRIPPLE=1Vpp IOUT=100mA IOUT=500mA VD IOUT=800mA IOUT=1A TA=25°C, 30ms Pulse OTP
MIN. 4.950 4.950
TYP. 5.000 5.000 1 1 0.5 0.3 0.35
MAX. 5.050 5.050 6 15
UNIT V V mV mV % % V mA mA
15 0.5
800 1000 100 75 1.05 1.15 1.18 1.22 0.01 150 MIN 1.125 1.125 TYP 1.25 1.25 0.035 0.1 0.50 0.3 7 0.3 0.3 800 1000 0.003 75 1.05 1.15 1.18 1.22 0.01 150 1.15 1.25 1.28 1.35 0.10 15 10 2 1 1.15 1.25 1.28 1.35 0.10
μV dB
V %/W °C UNIT V V % % % % V μA μA mA mA % dB
SYMBOL TEST CONDITIONS VREF VIN-VOUT=2V, IOUT=10mA, TJ=25°C VIN-VOUT=1.4~10V Reference Voltage VREF LD2117A : IOUT=10~1000mA Line Regulation ΔVOUT VIN-VOUT=1.5 to 13.75V, IOUT=10mA VIN-VOUT=3V Load Regulation ΔVOUT LD2117 : IOUT=10~800mA LD2117A : 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=1.4~10V, Adjustment Pin Current Change ΔIADJ LD2117A : IOUT=10 ~ 1000mA Minimum Load Current IO(MIN) VIN=15V LD2117 Current Limit ILIMIT VIN-VOUT=5V, TJ=25°C LD2117A 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=1A Thermal Regulation TA=25°C, 30ms Pulse Thermal Shutdown OTP
MAX 1.375 1.375 0.2 0.4
V %/W °C 7 of 11
UNISONIC TECHNOLOGIES CO., LTD
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QW-R102-042.B
LD2117/A
APPLICATION NOTE of LD2117/A ADJUSTABLE
LINEAR INTEGRATED CIRCUIT
The LD2117/A adjustable has a reference voltage of between the OUT and ADJ pins. IADJ is 7μA typ. (10μA max.) and ΔIADJ is 0.3μA typ. (2µA max.). R1 is normally fixed to 1.2kΩ. From figure 4 we obtain: VOUT=VREF+R2(IADJ+IR1)=VREF + R2(IADJ+VREF/R1)=VREF(1+R2/R1) + R2 × 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 LD2117/A VIN 10µF + IN ADJ R1 1.2kΩ VREF OUT + 10µF VOUT
R2
Fig.4 Adjustable Output Voltage Application Circuit
Fig.5 Adjustable Output Voltage Application with improved Ripple Rejection.
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8 of 11
QW-R102-042.B
LD2117/A
TYPICAL CHARACTERISTICS
LINEAR INTEGRATED CIRCUIT
Output Voltage Deviation (mV)
Load Current (mA)
Input Voltage Change (V)
Output Voltage Deviation (mV)
1.3 Dropout Voltage, VD (V) 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0
Dropout Voltage (VIN-VOUT) TJ=25°C Ripple Rejection (dB)
90 80 70
Ripple Rejection
CADJ =22µF IOUT=0.1A CO=10µF
TJ=125°C
60 50 40
0.2 0.4 0.6 0.8 Output Current, IOUT (A)
1.0
30 10
100
1K 10K Frequency (Hz)
100K
1M
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Short Circuit Current (A)
Adjust Pin Current (µA)
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QW-R102-042.B
LD2117/A
TYPICAL CHARACTERISTICS(Cont.)
Load Regulation ΔILOAD=1A Input Current (mA) 0.8 Output Voltage Deveiation (%) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 -50 -25 0 25 50 75 Temperature (°C) 100 125 0.5 0.5 0.4 0.35 0.3 0.25 0.2
LINEAR INTEGRATED CIRCUIT
Input Current vs. Temperature
0.15 -50 -25
0 25 50 75 Temperature (°C)
100 125
Output Voltage vs. Temperautre 1.275 1.25 Output Voltage (V) 1.225 1.2 1.175 1.15 1.125 1.1 -50 -25 0 25 50 75 100 125150 Temperature (°C) Output Voltage (V) VOUT=1.2V 5.15 5.1 5.05 5.0 4.95 4.9 4.85
Output Voltage vs. Temperautre
VOUT=5V
4.8 -50 -25
0
25 50 75 100 125150 Temperature (°C)
Reference Voltage (V)
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Power (W)
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QW-R102-042.B
LD2117/A
LINEAR INTEGRATED CIRCUIT
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.
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QW-R102-042.B
