Datasheet LT1129, LT1129-3.3, LT1129-5 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | Micropower Low Dropout Regulators with Shutdown |
| Seiten / Seite | 16 / 5 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| Dateiformat / Größe | PDF / 181 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
Modelllinie für dieses Datenblatt
- LT1129CQ#PBF LT1129CQ#PBF LT1129CQ#TRPBF LT1129CQ#TRPBF LT1129CQ-3.3#PBF LT1129CQ-3.3#PBF LT1129CQ-3.3#TRPBF LT1129CQ-3.3#TRPBF LT1129CQ-5#PBF LT1129CQ-5#PBF LT1129CQ-5#TRPBF LT1129CQ-5#TRPBF LT1129CS8#PBF LT1129CS8#PBF LT1129CS8#TRPBF LT1129CS8#TRPBF LT1129CS8-3.3#PBF LT1129CS8-3.3#PBF LT1129CS8-3.3#TRPBF LT1129CS8-3.3#TRPBF LT1129CS8-5#PBF LT1129CS8-5#PBF LT1129CS8-5#TRPBF LT1129CS8-5#TRPBF LT1129CST-3.3#PBF LT1129CST-3.3#PBF LT1129CST-3.3#TRPBF LT1129CST-3.3#TRPBF LT1129CST-5#PBF LT1129CST-5#PBF LT1129CST-5#TRPBF LT1129CST-5#TRPBF LT1129CT#PBF LT1129CT#PBF LT1129CT-3.3#06PBF LT1129CT-3.3#06PBF LT1129CT-3.3#PBF LT1129CT-3.3#PBF LT1129CT-5#06PBF LT1129CT-5#06PBF LT1129CT-5#PBF LT1129CT-5#PBF LT1129IQ#PBF LT1129IQ#PBF LT1129IQ#TRPBF LT1129IQ#TRPBF LT1129IQ-3.3#PBF LT1129IQ-3.3#PBF LT1129IQ-3.3#TRPBF LT1129IQ-3.3#TRPBF LT1129IQ-5#PBF LT1129IQ-5#PBF LT1129IQ-5#TRPBF LT1129IQ-5#TRPBF LT1129IS8#PBF LT1129IS8#PBF LT1129IS8#TRPBF LT1129IS8#TRPBF LT1129IS8-3.3#PBF LT1129IS8-3.3#PBF LT1129IS8-3.3#TRPBF LT1129IS8-3.3#TRPBF LT1129IS8-5#PBF LT1129IS8-5#PBF LT1129IS8-5#TRPBF LT1129IS8-5#TRPBF LT1129IST-3.3#PBF LT1129IST-3.3#PBF LT1129IST-3.3#TRPBF LT1129IST-3.3#TRPBF LT1129IST-5#PBF LT1129IST-5#PBF LT1129IST-5#TRPBF LT1129IST-5#TRPBF LT1129IT#06PBF LT1129IT#06PBF LT1129IT#PBF LT1129IT#PBF LT1129IT-3.3#PBF LT1129IT-3.3#PBF LT1129IT-5#06PBF LT1129IT-5#06PBF LT1129IT-5#PBF LT1129IT-5#PBF LT1129MPST-3.3 LT1129MPST-3.3#PBF LT1129MPST-3.3#PBF LT1129MPST-3.3#TR LT1129MPST-3.3#TRPBF LT1129MPST-3.3#TRPBF
Textversion des Dokuments
LT1129/LT1129-3.3/LT1129-5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. SYMBOL CONDITIONS MIN TYP MAX UNITS
Ripple Rejection VIN – VOUT = 1V (Avg), VRIPPLE = 0.5VP-P, 52 64 dB fRIPPLE = 120Hz, ILOAD = 0.7A, TJ = 25°C Current Limit VIN – VOUT = 7V, TJ = 25°C 1.2 1.6 A Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1.0 mA Reverse Output Current (Note 11) LT1129-3.3 VOUT = 3.3V, VIN = 0V 16 25 μA LT1129-5 VOUT = 5V, VIN = 0V 16 25 μA LT1129 (Note 5) VOUT = 3.8V, VIN = 0V 16 25 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings voltage will be equal to (VIN – VDROPOUT). Dropout voltage is measured may cause permanent damage to the device. Exposure to any Absolute between the input pin and the output pin. External voltage drops between Maximum Rating condition for extended periods may affect device the output pin and the sense pin will add to the dropout voltage. reliability and lifetime.
Note 7:
Ground pin current is tested with VIN = VOUT (nominal) and a
Note 2:
The shutdown pin input voltage rating is required for a low current source load. This means that the device is tested while operating in impedance source. Internal protection devices connected to the shutdown its dropout region. This is the worst case ground pin current. The ground pin will turn on and clamp the pin to approximately 7V or – 0.6V. This pin current will decrease slightly at higher input voltages. range allows the use of 5V logic devices to drive the pin directly. For high
Note 8:
Adjust pin bias current fl ows into the adjust pin. impedance sources or logic running on supply voltages greater than 5.5V,
Note 9:
Shutdown pin current at VSHDN = 0V fl ows out of the shutdown pin. the maximum current driven into the shutdown pin must be limited to less
Note 10:
Quiescent current in shutdown is equal to the sum total of the than 20mA. shutdown pin current (6μA) and the ground pin current (9μA).
Note 3:
For junction temperatures greater than 110°C, a minimum load
Note 11:
Reverse output current is tested with the input pin grounded. The of 1mA is recommended. For TJ > 110°C and IOUT < 1mA, output voltage output pin and the sense pin are forced to the rated output voltage. This may increase by 1%. current fl ows into the sense pin and out of the ground pin. For the LT1129
Note 4:
Operating conditions are limited by maximum junction (adjustable version) the sense pin is internally tied to the output pin. temperature. The regulated output voltage specifi cation will not apply
Note 12:
The LT1129 regulators are tested and specifi ed under pulse load for all possible combinations of input voltage and output current. When conditions such that TJ ≅ TA. The LT1129C regulators are 100% tested at operating at maximum input voltage, the output current range must be TA = 25°C. For C-grade devices, Regulated Output Voltage, Line Regulation limited. When operating at maximum output current, the input voltage and Load Regulation performance at –40°C and 125°C is assured by range must be limited. design, characterization and correlation with statistical process controls.
Note 5:
The LT1129 is tested and specifi ed with the adjust pin connected The LT1129I regulators are guaranteed over the full –40°C to 125°C to the output pin. operating junction temperature range. The LT1129MP regulators are 100%
Note 6:
Dropout voltage is the minimum input/output voltage required to tested and guaranteed over the –55°C to 125°C temperature range. maintain regulation at the specifi ed output current. In dropout the output
TYPICAL PERFORMANCE CHARACTERISTICS Guaranteed Dropout Voltage Dropout Voltage Quiescent Current
0.7 0.7 70 A. ILOAD = 700mA 0.6 0.6 B. ILOAD = 500mA 60 TJ ≤ 125°C C. I A LOAD = 300mA D. ILOAD = 100mA V 0.5 0.5 B SHDN = OPEN (HI) E. I 50 LOAD = 10mA GE (V) T C TA J ≤ 25°C 0.4 0.4 40 D 0.3 0.3 30 E DROPOUT VOL 0.2 0.2 V DROPOUT VOLTAGE (V) 20 SHDN = 0V QUIESCENT CURRENT (μA) 0.1 0.1 10 = TEST POINTS 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 OUTPUT CURRENT (A) TEMPERATURE (°C) TEMPERATURE (°C) 112935 G01 112935 G02 112935 G03 112935ff 5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. SYMBOL CONDITIONS MIN TYP MAX UNITS
Ripple Rejection VIN – VOUT = 1V (Avg), VRIPPLE = 0.5VP-P, 52 64 dB fRIPPLE = 120Hz, ILOAD = 0.7A, TJ = 25°C Current Limit VIN – VOUT = 7V, TJ = 25°C 1.2 1.6 A Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1.0 mA Reverse Output Current (Note 11) LT1129-3.3 VOUT = 3.3V, VIN = 0V 16 25 μA LT1129-5 VOUT = 5V, VIN = 0V 16 25 μA LT1129 (Note 5) VOUT = 3.8V, VIN = 0V 16 25 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings voltage will be equal to (VIN – VDROPOUT). Dropout voltage is measured may cause permanent damage to the device. Exposure to any Absolute between the input pin and the output pin. External voltage drops between Maximum Rating condition for extended periods may affect device the output pin and the sense pin will add to the dropout voltage. reliability and lifetime.
Note 7:
Ground pin current is tested with VIN = VOUT (nominal) and a
Note 2:
The shutdown pin input voltage rating is required for a low current source load. This means that the device is tested while operating in impedance source. Internal protection devices connected to the shutdown its dropout region. This is the worst case ground pin current. The ground pin will turn on and clamp the pin to approximately 7V or – 0.6V. This pin current will decrease slightly at higher input voltages. range allows the use of 5V logic devices to drive the pin directly. For high
Note 8:
Adjust pin bias current fl ows into the adjust pin. impedance sources or logic running on supply voltages greater than 5.5V,
Note 9:
Shutdown pin current at VSHDN = 0V fl ows out of the shutdown pin. the maximum current driven into the shutdown pin must be limited to less
Note 10:
Quiescent current in shutdown is equal to the sum total of the than 20mA. shutdown pin current (6μA) and the ground pin current (9μA).
Note 3:
For junction temperatures greater than 110°C, a minimum load
Note 11:
Reverse output current is tested with the input pin grounded. The of 1mA is recommended. For TJ > 110°C and IOUT < 1mA, output voltage output pin and the sense pin are forced to the rated output voltage. This may increase by 1%. current fl ows into the sense pin and out of the ground pin. For the LT1129
Note 4:
Operating conditions are limited by maximum junction (adjustable version) the sense pin is internally tied to the output pin. temperature. The regulated output voltage specifi cation will not apply
Note 12:
The LT1129 regulators are tested and specifi ed under pulse load for all possible combinations of input voltage and output current. When conditions such that TJ ≅ TA. The LT1129C regulators are 100% tested at operating at maximum input voltage, the output current range must be TA = 25°C. For C-grade devices, Regulated Output Voltage, Line Regulation limited. When operating at maximum output current, the input voltage and Load Regulation performance at –40°C and 125°C is assured by range must be limited. design, characterization and correlation with statistical process controls.
Note 5:
The LT1129 is tested and specifi ed with the adjust pin connected The LT1129I regulators are guaranteed over the full –40°C to 125°C to the output pin. operating junction temperature range. The LT1129MP regulators are 100%
Note 6:
Dropout voltage is the minimum input/output voltage required to tested and guaranteed over the –55°C to 125°C temperature range. maintain regulation at the specifi ed output current. In dropout the output
TYPICAL PERFORMANCE CHARACTERISTICS Guaranteed Dropout Voltage Dropout Voltage Quiescent Current
0.7 0.7 70 A. ILOAD = 700mA 0.6 0.6 B. ILOAD = 500mA 60 TJ ≤ 125°C C. I A LOAD = 300mA D. ILOAD = 100mA V 0.5 0.5 B SHDN = OPEN (HI) E. I 50 LOAD = 10mA GE (V) T C TA J ≤ 25°C 0.4 0.4 40 D 0.3 0.3 30 E DROPOUT VOL 0.2 0.2 V DROPOUT VOLTAGE (V) 20 SHDN = 0V QUIESCENT CURRENT (μA) 0.1 0.1 10 = TEST POINTS 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 OUTPUT CURRENT (A) TEMPERATURE (°C) TEMPERATURE (°C) 112935 G01 112935 G02 112935 G03 112935ff 5