Datasheet LT3020, LT3020-1.2, LT3020-1.5, LT3020-1.8 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 100mA, Low Voltage, Very Low Dropout Linear Regulator |
| 页数 / 页 | 16 / 4 — ELECTRICAL CHARACTERISTICS. The |
| 文件格式/大小 | PDF / 221 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The
该数据表的模型线
- LT3020EDD#PBF LT3020EDD#PBF LT3020EDD#TRPBF LT3020EDD#TRPBF LT3020EDD-1.2#PBF LT3020EDD-1.2#PBF LT3020EDD-1.2#TRPBF LT3020EDD-1.2#TRPBF LT3020EDD-1.5#PBF LT3020EDD-1.5#PBF LT3020EDD-1.5#TRPBF LT3020EDD-1.5#TRPBF LT3020EDD-1.8#PBF LT3020EDD-1.8#PBF LT3020EDD-1.8#TRPBF LT3020EDD-1.8#TRPBF LT3020EMS8#PBF LT3020EMS8#PBF LT3020EMS8#TRPBF LT3020EMS8#TRPBF LT3020EMS8-1.2#PBF LT3020EMS8-1.2#PBF LT3020EMS8-1.2#TRPBF LT3020EMS8-1.2#TRPBF LT3020EMS8-1.5#PBF LT3020EMS8-1.5#PBF LT3020EMS8-1.5#TRPBF LT3020EMS8-1.5#TRPBF LT3020EMS8-1.8#PBF LT3020EMS8-1.8#PBF LT3020EMS8-1.8#TRPBF LT3020EMS8-1.8#TRPBF LT3020IDD#PBF LT3020IDD#PBF LT3020IDD#TRPBF LT3020IDD#TRPBF LT3020IDD-1.2#PBF LT3020IDD-1.2#PBF LT3020IDD-1.2#TRPBF LT3020IDD-1.2#TRPBF LT3020IDD-1.5#PBF LT3020IDD-1.5#PBF LT3020IDD-1.5#TRPBF LT3020IDD-1.5#TRPBF LT3020IDD-1.8#PBF LT3020IDD-1.8#PBF LT3020IDD-1.8#TRPBF LT3020IDD-1.8#TRPBF LT3020IMS8#PBF LT3020IMS8#PBF LT3020IMS8#TRPBF LT3020IMS8#TRPBF LT3020IMS8-1.2#PBF LT3020IMS8-1.2#PBF LT3020IMS8-1.2#TRPBF LT3020IMS8-1.2#TRPBF LT3020IMS8-1.5#PBF LT3020IMS8-1.5#PBF LT3020IMS8-1.5#TRPBF LT3020IMS8-1.5#TRPBF LT3020IMS8-1.8#PBF LT3020IMS8-1.8#PBF LT3020IMS8-1.8#TRPBF LT3020IMS8-1.8#TRPBF
文件文字版本
LT3020/LT3020-1.2/ LT3020-1.5/LT3020-1.8
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are TJ = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Current Limit (Note 12) VIN = 10V, VOUT = 0V 360 mA VIN = VOUT(NOMINAL) + 0.5V, ∆VOUT = –5% ● 110 310 mA Input Reverse Leakage Current VIN = –10V, VOUT = 0V 1 10 µA Reverse Output Current VOUT = 1.2V, VIN = 0V 3 5 µA (Notes 11, 13) LT3020-1.2 VOUT = 1.2V, VIN = 0V 10 15 µA LT3020-1.5 VOUT = 1.5V, VIN = 0V 10 15 µA LT3020-1.8 VOUT = 1.8V, VIN = 0V 10 15 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 7:
Dropout voltage is the minimum input to output voltage differential of a device may be impaired. needed to maintain regulation at a specified output current. In dropout the
Note 2:
The LT3020 regulators are tested and specified under pulse load output voltage equals: (VIN – VDROPOUT). conditions such that TJ ≈ TA. The LT3020E is 100% production tested at
Note 8:
GND pin current is tested with VIN = VOUT(NOMINAL) and a current TA = 25°C. Performance at –40°C and 125°C is assured by design, source load. The device is tested while operating in its dropout region. characterization and correlation with statistical process controls. The This condition forces the worst-case GND pin current. GND pin current LT3020I is guaranteed over the full –40°C to 125°C operating junction decreases at higher input voltages. temperature range.
Note 9:
Adjust pin bias current flows out of the ADJ pin.
Note 3:
This IC includes overtemperature protection that is intended to
Note 10:
Shutdown pin current flows into the SHDN pin. protect the device during momentary overload conditions. Junction
Note 11:
Reverse output current is tested with IN grounded and OUT temperature will exceed 125°C when overtemperature protection is active. forced to the rated output voltage. This current flows into the OUT pin and Continuous operation above the specified maximum operating junction out of the GND pin. For fixed voltage devices this includes the current in temperature may impair device reliability. the output resistor divider.
Note 4:
Maximum junction temperature limits operating conditions. The
Note 12:
The LT3020 is tested and specified for these conditions with an regulated output voltage specification does not apply for all possible external resistor divider (20k and 100k) setting VOUT to 1.2V. The external combinations of input voltage and output current. Limit the output current resistor divider adds 10µA of load current. range if operating at maximum input voltage. Limit the input voltage range
Note 13:
Reverse current is higher for the case of (rated_output) < V if operating at maximum output current. OUT < VIN, because the no-load recovery circuitry is active in this region and is
Note 5:
Typically the LT3020 supplies 100mA output current with a 1V trying to restore the output voltage to its nominal value. input supply. The guaranteed minimum input voltage for 100mA output
Note 14:
Minimum input voltage is the minimum voltage required by the current is 1.10V. control circuit to regulate the output voltage and supply the full 100mA
Note 6:
The LT3020 is tested and specified for these conditions with an rated current. This specification is tested at VOUT = 0.5V. At higher output external resistor divider (20k and 30.1k) setting VOUT to 0.5V. The external voltages the minimum input voltage required for regulation will be equal to resistor divider adds 10µA of output load current. The line regulation and the regulated output voltage VOUT plus the dropout voltage. load regulation specifications refer to the change in the 0.2V reference voltage, not the 0.5V output voltage. Specifications for fixed output voltage devices are referred to the output voltage. 3020fc 4
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are TJ = 25
°
C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Current Limit (Note 12) VIN = 10V, VOUT = 0V 360 mA VIN = VOUT(NOMINAL) + 0.5V, ∆VOUT = –5% ● 110 310 mA Input Reverse Leakage Current VIN = –10V, VOUT = 0V 1 10 µA Reverse Output Current VOUT = 1.2V, VIN = 0V 3 5 µA (Notes 11, 13) LT3020-1.2 VOUT = 1.2V, VIN = 0V 10 15 µA LT3020-1.5 VOUT = 1.5V, VIN = 0V 10 15 µA LT3020-1.8 VOUT = 1.8V, VIN = 0V 10 15 µA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 7:
Dropout voltage is the minimum input to output voltage differential of a device may be impaired. needed to maintain regulation at a specified output current. In dropout the
Note 2:
The LT3020 regulators are tested and specified under pulse load output voltage equals: (VIN – VDROPOUT). conditions such that TJ ≈ TA. The LT3020E is 100% production tested at
Note 8:
GND pin current is tested with VIN = VOUT(NOMINAL) and a current TA = 25°C. Performance at –40°C and 125°C is assured by design, source load. The device is tested while operating in its dropout region. characterization and correlation with statistical process controls. The This condition forces the worst-case GND pin current. GND pin current LT3020I is guaranteed over the full –40°C to 125°C operating junction decreases at higher input voltages. temperature range.
Note 9:
Adjust pin bias current flows out of the ADJ pin.
Note 3:
This IC includes overtemperature protection that is intended to
Note 10:
Shutdown pin current flows into the SHDN pin. protect the device during momentary overload conditions. Junction
Note 11:
Reverse output current is tested with IN grounded and OUT temperature will exceed 125°C when overtemperature protection is active. forced to the rated output voltage. This current flows into the OUT pin and Continuous operation above the specified maximum operating junction out of the GND pin. For fixed voltage devices this includes the current in temperature may impair device reliability. the output resistor divider.
Note 4:
Maximum junction temperature limits operating conditions. The
Note 12:
The LT3020 is tested and specified for these conditions with an regulated output voltage specification does not apply for all possible external resistor divider (20k and 100k) setting VOUT to 1.2V. The external combinations of input voltage and output current. Limit the output current resistor divider adds 10µA of load current. range if operating at maximum input voltage. Limit the input voltage range
Note 13:
Reverse current is higher for the case of (rated_output) < V if operating at maximum output current. OUT < VIN, because the no-load recovery circuitry is active in this region and is
Note 5:
Typically the LT3020 supplies 100mA output current with a 1V trying to restore the output voltage to its nominal value. input supply. The guaranteed minimum input voltage for 100mA output
Note 14:
Minimum input voltage is the minimum voltage required by the current is 1.10V. control circuit to regulate the output voltage and supply the full 100mA
Note 6:
The LT3020 is tested and specified for these conditions with an rated current. This specification is tested at VOUT = 0.5V. At higher output external resistor divider (20k and 30.1k) setting VOUT to 0.5V. The external voltages the minimum input voltage required for regulation will be equal to resistor divider adds 10µA of output load current. The line regulation and the regulated output voltage VOUT plus the dropout voltage. load regulation specifications refer to the change in the 0.2V reference voltage, not the 0.5V output voltage. Specifications for fixed output voltage devices are referred to the output voltage. 3020fc 4