Datasheet LT3013B (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 250mA, 4V to 80V Low Dropout Micropower Linear Regulator with PWRGD |
| 页数 / 页 | 16 / 1 — FEATURES. DESCRIPTION. Wide Input Voltage Range: 4V to 80V. Low Quiescent … |
| 文件格式/大小 | PDF / 178 Kb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Wide Input Voltage Range: 4V to 80V. Low Quiescent Current: 65μA. Low Dropout Voltage: 400mV
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LT3013B 250mA, 4V to 80V Low Dropout Micropower Linear Regulator with PWRGD
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 4V to 80V
The LT®3013B is a high voltage, micropower low dropout n
Low Quiescent Current: 65μA
linear regulator. The device is capable of supplying 250mA n
Low Dropout Voltage: 400mV
of output current with a dropout voltage of 400mV. De- n
Output Current: 250mA
signed for use in battery-powered or high voltage systems, n No Protection Diodes Needed the low quiescent current (65μA operating) makes the n Adjustable Output from 1.24V to 60V LT3013B an ideal choice. Quiescent current is also well n Stable with 3.3μF Output Capacitor controlled in dropout. n Stable with Aluminum, Tantalum or Ceramic Other features of the LT3013B include a PWRGD fl ag to Capacitors indicate output regulation. The delay between regulated n Reverse-Battery Protection output level and fl ag indication is programmable with n No Reverse Current Flow from Output to Input a single capacitor. The LT3013B also has the ability to n Thermal Limiting operate with very small output capacitors. The regulator n Thermally Enhanced 16-Lead TSSOP and 12-Pin is stable with only 3.3μF on the output while most older (4mm × 3mm) DFN Package devices require between 10μF and 100μF for stability. Small ceramic capacitors can be used without any need for series resistance (ESR) as is common with other
APPLICATIONS
regulators. Internal protection circuitry includes reverse- n Low Current High Voltage Regulators battery protection, current limiting, thermal limiting and n Regulator for Battery-Powered Systems reverse-current protection. n Telecom Applications The device is available with an adjustable output with a n Automotive Applications 1.24V reference voltage. The LT3013B regulator is avail- L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. able in the thermally enhanced 16-lead TSSOP and the low All other trademarks are the property of their respective owners. profi le (0.75mm), 12-pin (4mm × 3mm) DFN package, both providing excellent thermal characteristics.
TYPICAL APPLICATION Dropout Voltage
400
5V Supply
350 VOUT 300 IN OUT 5V VIN 250mA LT3013B 250 750k 5.4V TO 1μF 1.6M 3.3μF TAGE (mV) 80V ADJ 200 PWRGD 249k GND C 150 T 3013 TA01 DROPOUT VOL 100 1000pF 50 0 0 50 100 150 200 250 OUTPUT CURRENT (mA) 3013 TA02 3013bfb 1
FEATURES DESCRIPTION
n
Wide Input Voltage Range: 4V to 80V
The LT®3013B is a high voltage, micropower low dropout n
Low Quiescent Current: 65μA
linear regulator. The device is capable of supplying 250mA n
Low Dropout Voltage: 400mV
of output current with a dropout voltage of 400mV. De- n
Output Current: 250mA
signed for use in battery-powered or high voltage systems, n No Protection Diodes Needed the low quiescent current (65μA operating) makes the n Adjustable Output from 1.24V to 60V LT3013B an ideal choice. Quiescent current is also well n Stable with 3.3μF Output Capacitor controlled in dropout. n Stable with Aluminum, Tantalum or Ceramic Other features of the LT3013B include a PWRGD fl ag to Capacitors indicate output regulation. The delay between regulated n Reverse-Battery Protection output level and fl ag indication is programmable with n No Reverse Current Flow from Output to Input a single capacitor. The LT3013B also has the ability to n Thermal Limiting operate with very small output capacitors. The regulator n Thermally Enhanced 16-Lead TSSOP and 12-Pin is stable with only 3.3μF on the output while most older (4mm × 3mm) DFN Package devices require between 10μF and 100μF for stability. Small ceramic capacitors can be used without any need for series resistance (ESR) as is common with other
APPLICATIONS
regulators. Internal protection circuitry includes reverse- n Low Current High Voltage Regulators battery protection, current limiting, thermal limiting and n Regulator for Battery-Powered Systems reverse-current protection. n Telecom Applications The device is available with an adjustable output with a n Automotive Applications 1.24V reference voltage. The LT3013B regulator is avail- L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. able in the thermally enhanced 16-lead TSSOP and the low All other trademarks are the property of their respective owners. profi le (0.75mm), 12-pin (4mm × 3mm) DFN package, both providing excellent thermal characteristics.
TYPICAL APPLICATION Dropout Voltage
400
5V Supply
350 VOUT 300 IN OUT 5V VIN 250mA LT3013B 250 750k 5.4V TO 1μF 1.6M 3.3μF TAGE (mV) 80V ADJ 200 PWRGD 249k GND C 150 T 3013 TA01 DROPOUT VOL 100 1000pF 50 0 0 50 100 150 200 250 OUTPUT CURRENT (mA) 3013 TA02 3013bfb 1