LD1085CDT120R资料
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(*) Available in Tape & Reel with the suffix "R" for fixed version and "-R" for adjustable version.
OUTPUT VOLTAGE 1.5 V 1.8 V 2.5 V 2.85 V 3.3 V 3.6 V 5.0 V 8.0 V 9.0 V 12.0 V ADJ
DPAK
DESCRIPTION The LD1085 is a LOW DROP Voltage Regulator able to provide up to 3A of Output Current. Dropout is guaranteed at a maximum of 1.5V at the maximum output current, decreasing at lower loads. The LD1085 is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance .
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
THERMAL DATA
ቤተ መጻሕፍቲ ባይዱ
IO = 0 to 3A TJ = 25°C
TA = 125°C
1000Hrs
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
4/15
元器件交易网
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 3.4 to 18V VI = 3.4 to 15V TJ = 25°C IO = 0 to 3A VI = 3.4 to 30V (note 1) Min. 1.764 1.746 Typ. 1.8 1.8 0.2 0.4 2 4 1.3 5 4.5 0.5 0.003 75 0.003 0.5 0.5 0.015 Max. 1.836 1.854 4 4 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %
R2 VO = VREF (1 + ) R1
2/15
元器件交易网
LD1085C SERIES
CONNECTION DIAGRAM (top view)
DPAK
ORDERING CODES
DPAK (*) LD1085CDT15 LD1085CDT18 LD1085CDT25 LD1085CDT28 LD1085CDT33 LD1085CDT36 LD1085CDT50 LD1085CDT80 LD1085CDT90 LD1085CDT120 LD1085CDT
Symbol Rthj-case Rthj-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient DPAK 3 62.5 Unit °C/W °C/W
APPLICATION CIRCUITS
3/15
元器件交易网
LD1085C SERIES
ELECTRICAL CHARACTERISTICS OF LD1085CDT15 (VI=4.5V, CI = C O =10µF, TA = -40 to 125°C, unless otherwise specified.)
LD1085C SERIES
ELECTRICAL CHARACTERISTICS OF LD1085CDT25 (V I=5.5V, CI = CO =10µF, TA = -40 to 125°C, unless otherwise specified.)
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 4.1 to 18V VI = 4.1 to 18V TJ = 25°C IO = 0 to 3A VI = 4.1 to 30V (note 1) Min. 2.45 2.425 Typ. 2.5 2.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.008 72 0.003 0.5 0.5 0.04 Max. 2.55 2.575 5 5 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %
元器件交易网
LD1085C SERIES
3A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
s s
s
s
s s
s s
TYPICAL DROPOUT 1.3V (AT 3A) THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 3.6V, 5V, 8V, 9V, 12V. GUARANTEED OUTPUT CURRENT UP TO 3A OUPUT TOLERANCE ±2% AT 25°C AND ±3% IN FULL TEMPERATURE RANGE INTERNAL POWER AND THERMAL LIMIT WIDE OPERATING TEMPERATURE RANGE -40°C TO 125°C PACKAGE AVAILABLE : DPAK PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VREG
SCHEMATIC DIAGRAM
July 2002
1/15
元器件交易网
LD1085C SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol VI IO PD Tstg Top DC Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range Parameter² Value 30 Internally Limited Internally Limited -55 to +150 -40 to +125 Unit V mA mW °C °C
A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is need for stability. The device is supplied in DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±2% at 25°C.
IO = 0 to 3A TJ = 25°C
TA = 125°C
1000Hrs
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1085CDT18 (VI=4.8V, CI = C O =10µF, TA = -40 to 125°C, unless otherwise specified.)
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 3.1 to 18V VI = 3.1 to 15V TJ = 25°C IO = 0 to 3A VI = 3.1 to 30V (note 1) Min. 1.47 1.455 Typ. 1.5 1.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.003 75 0.003 0.5 0.5 0.015 Max. 1.53 1.545 4 4 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %
OUTPUT VOLTAGE 1.5 V 1.8 V 2.5 V 2.85 V 3.3 V 3.6 V 5.0 V 8.0 V 9.0 V 12.0 V ADJ
DPAK
DESCRIPTION The LD1085 is a LOW DROP Voltage Regulator able to provide up to 3A of Output Current. Dropout is guaranteed at a maximum of 1.5V at the maximum output current, decreasing at lower loads. The LD1085 is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance .
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
THERMAL DATA
ቤተ መጻሕፍቲ ባይዱ
IO = 0 to 3A TJ = 25°C
TA = 125°C
1000Hrs
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
4/15
元器件交易网
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 3.4 to 18V VI = 3.4 to 15V TJ = 25°C IO = 0 to 3A VI = 3.4 to 30V (note 1) Min. 1.764 1.746 Typ. 1.8 1.8 0.2 0.4 2 4 1.3 5 4.5 0.5 0.003 75 0.003 0.5 0.5 0.015 Max. 1.836 1.854 4 4 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %
R2 VO = VREF (1 + ) R1
2/15
元器件交易网
LD1085C SERIES
CONNECTION DIAGRAM (top view)
DPAK
ORDERING CODES
DPAK (*) LD1085CDT15 LD1085CDT18 LD1085CDT25 LD1085CDT28 LD1085CDT33 LD1085CDT36 LD1085CDT50 LD1085CDT80 LD1085CDT90 LD1085CDT120 LD1085CDT
Symbol Rthj-case Rthj-amb Parameter Thermal Resistance Junction-case Thermal Resistance Junction-ambient DPAK 3 62.5 Unit °C/W °C/W
APPLICATION CIRCUITS
3/15
元器件交易网
LD1085C SERIES
ELECTRICAL CHARACTERISTICS OF LD1085CDT15 (VI=4.5V, CI = C O =10µF, TA = -40 to 125°C, unless otherwise specified.)
LD1085C SERIES
ELECTRICAL CHARACTERISTICS OF LD1085CDT25 (V I=5.5V, CI = CO =10µF, TA = -40 to 125°C, unless otherwise specified.)
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 4.1 to 18V VI = 4.1 to 18V TJ = 25°C IO = 0 to 3A VI = 4.1 to 30V (note 1) Min. 2.45 2.425 Typ. 2.5 2.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.008 72 0.003 0.5 0.5 0.04 Max. 2.55 2.575 5 5 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %
元器件交易网
LD1085C SERIES
3A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED
s s
s
s
s s
s s
TYPICAL DROPOUT 1.3V (AT 3A) THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 3.6V, 5V, 8V, 9V, 12V. GUARANTEED OUTPUT CURRENT UP TO 3A OUPUT TOLERANCE ±2% AT 25°C AND ±3% IN FULL TEMPERATURE RANGE INTERNAL POWER AND THERMAL LIMIT WIDE OPERATING TEMPERATURE RANGE -40°C TO 125°C PACKAGE AVAILABLE : DPAK PINOUT COMPATIBILITY WITH STANDARD ADJUSTABLE VREG
SCHEMATIC DIAGRAM
July 2002
1/15
元器件交易网
LD1085C SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol VI IO PD Tstg Top DC Input Voltage Output Current Power Dissipation Storage Temperature Range Operating Junction Temperature Range Parameter² Value 30 Internally Limited Internally Limited -55 to +150 -40 to +125 Unit V mA mW °C °C
A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085 quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is need for stability. The device is supplied in DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±2% at 25°C.
IO = 0 to 3A TJ = 25°C
TA = 125°C
1000Hrs
NOTE 1: See short-circuit current curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS OF LD1085CDT18 (VI=4.8V, CI = C O =10µF, TA = -40 to 125°C, unless otherwise specified.)
Symbol VO ∆VO ∆VO Vd Iq Isc Parameter Output Voltage Line Regulation Load Regulation Dropout Voltage Quiescent Current Short Circuit Current Termal Regulation SVR eN S S Supply Voltage Rejection RMS Output Noise Voltage (% of VO) Temperature Stability Long Term Stability IO = 0 mA IO = 0 mA IO = 0 mA IO = 0 to 3A IO =3 A VI ≤ 30V VI - VO = 5V VI - VO = 25V TA = 25°C, 30ms pulse f = 120 Hz, CO = 25 µF, IO = 3A VI = 7.5 ± 3V TA = 25°C f =10Hz to 10KHz 60 3.2 0.2 Test Conditions TJ = 25°C VI = 3.1 to 18V VI = 3.1 to 15V TJ = 25°C IO = 0 to 3A VI = 3.1 to 30V (note 1) Min. 1.47 1.455 Typ. 1.5 1.5 0.2 0.4 2 4 1.3 5 4.5 0.5 0.003 75 0.003 0.5 0.5 0.015 Max. 1.53 1.545 4 4 10 20 1.5 10 Unit V V mV mV mV V V mA A A %/W dB % % %