Datasheet LT3030 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator |
| Pages / Page | 22 / 1 — FeaTures. DescripTion. Output Current: 750mA/250mA. Low Dropout Voltage: … |
| File Format / Size | PDF / 657 Kb |
| Document Language | English |
FeaTures. DescripTion. Output Current: 750mA/250mA. Low Dropout Voltage: 300mV. Low Noise: 20μVRMS (10Hz to 100kHz)
Model Line for this Datasheet
- LT3030EFE#PBF LT3030EFE#PBF LT3030EFE#TRPBF LT3030EFE#TRPBF LT3030EUFD#PBF LT3030EUFD#PBF LT3030EUFD#TRPBF LT3030EUFD#TRPBF LT3030HFE#PBF LT3030HFE#PBF LT3030HFE#TRPBF LT3030HFE#TRPBF LT3030HUFD#PBF LT3030HUFD#PBF LT3030HUFD#TRPBF LT3030HUFD#TRPBF LT3030IFE#PBF LT3030IFE#PBF LT3030IFE#TRPBF LT3030IFE#TRPBF LT3030IUFD#PBF LT3030IUFD#PBF LT3030IUFD#TRPBF LT3030IUFD#TRPBF LT3030MPFE#PBF LT3030MPFE#PBF LT3030MPFE#TRPBF LT3030MPFE#TRPBF
Text Version of Document
LT3030 Dual 750mA/250mA Low Dropout, Low Noise, Micropower Linear Regulator
FeaTures DescripTion
n
Output Current: 750mA/250mA
The LT®3030 is a dual, micropower, low noise, low dropout n
Low Dropout Voltage: 300mV
linear regulator. The device operates with either common n
Low Noise: 20μVRMS (10Hz to 100kHz)
or independent input supplies for each channel, over a n
Low Quiescent Current: 120μA/75μA
1.7V to 20V input voltage range. Output 1/Output 2 supply n Wide Input Voltage Range: 1.7V to 20V 750mA/250mA respectively with a typical dropout voltage n Adjustable Output: 1.220V Reference Voltage of 300mV. With an external 10nF bypass capacitor, output n Shutdown Quiescent Current: <1μA noise is only 20μVRMS over a 10Hz to 100kHz bandwidth. n Stable with 10µF/3.3µF Minimum Output Capacitor Designed for use in battery-powered systems, the low n Stable with Ceramic, Tantalum or Aluminum 120μA/75μA quiescent current makes it an ideal choice. Electrolytic Capacitors In shutdown, quiescent current drops to less than 1μA. n Precision Threshold for Shutdown Logic or UVLO Function Shutdown control is independent for each channel and n PWRGD Flag for each Output its precision logic threshold allows for voltage lockout n Reverse Battery and Reverse Output-to-Input functionality. The LT3030 includes a PWRGD flag for each Protection channel to indicate output regulation. n Current Limit with Foldback and Thermal Shutdown The LT3030 optimizes stability and transient response with n Thermally Enhanced 20-Lead TSSOP and low ESR ceramic output capacitors, requiring a minimum 28-Lead (4mm × 5mm) QFN Packages of only 10μF/3.3μF.
applicaTions
Internal circuitry provides reverse-battery protection, n General Purpose Linear Regulator reverse-current protection, current limiting with foldback n Battery-Powered Systems and thermal shutdown with hysteresis. The adjustable n Microprocessor Core/Logic Supplies output voltage device has a 1.220V reference voltage. n Post Regulator for Switching Supplies The LT3030 is offered in the thermally enhanced 20-lead n Tracking/Sequencing Power Supplies TSSOP and 28-lead, low profile (4mm × 5mm × 0.75mm) L QFN packages. , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion 2.5VIN to 1.8V/1.5V Application Dropout Voltage vs Load Current
500 VIN IN1 OUT1 VOUT1 TJ = 25°C 2.5V 1.8V 450 3.3µF IN2 LT3030 10nF 10µF 750mA 113k 400 SHDN1 BYP1 1% 350 SHDN2 ADJ1 300 1M 1M 237k TAGE (mV) OUT2 1% 250 PWRGD1 200 OUT1 PWRGD2 OUT2 VOUT2 150 1.5V DROPOUT VOL 10nF 3.3µF 250mA 100 54.9k BYP2 1% 50 ADJ2 0 GND 0 75 150 225 300 375 450 525 600 675 750 237k 3030 TA01a 1% OUTPUT CURRENT (mA) 3030 TA01b 3030fa For more information www.linear.com/LT3030 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
FeaTures DescripTion
n
Output Current: 750mA/250mA
The LT®3030 is a dual, micropower, low noise, low dropout n
Low Dropout Voltage: 300mV
linear regulator. The device operates with either common n
Low Noise: 20μVRMS (10Hz to 100kHz)
or independent input supplies for each channel, over a n
Low Quiescent Current: 120μA/75μA
1.7V to 20V input voltage range. Output 1/Output 2 supply n Wide Input Voltage Range: 1.7V to 20V 750mA/250mA respectively with a typical dropout voltage n Adjustable Output: 1.220V Reference Voltage of 300mV. With an external 10nF bypass capacitor, output n Shutdown Quiescent Current: <1μA noise is only 20μVRMS over a 10Hz to 100kHz bandwidth. n Stable with 10µF/3.3µF Minimum Output Capacitor Designed for use in battery-powered systems, the low n Stable with Ceramic, Tantalum or Aluminum 120μA/75μA quiescent current makes it an ideal choice. Electrolytic Capacitors In shutdown, quiescent current drops to less than 1μA. n Precision Threshold for Shutdown Logic or UVLO Function Shutdown control is independent for each channel and n PWRGD Flag for each Output its precision logic threshold allows for voltage lockout n Reverse Battery and Reverse Output-to-Input functionality. The LT3030 includes a PWRGD flag for each Protection channel to indicate output regulation. n Current Limit with Foldback and Thermal Shutdown The LT3030 optimizes stability and transient response with n Thermally Enhanced 20-Lead TSSOP and low ESR ceramic output capacitors, requiring a minimum 28-Lead (4mm × 5mm) QFN Packages of only 10μF/3.3μF.
applicaTions
Internal circuitry provides reverse-battery protection, n General Purpose Linear Regulator reverse-current protection, current limiting with foldback n Battery-Powered Systems and thermal shutdown with hysteresis. The adjustable n Microprocessor Core/Logic Supplies output voltage device has a 1.220V reference voltage. n Post Regulator for Switching Supplies The LT3030 is offered in the thermally enhanced 20-lead n Tracking/Sequencing Power Supplies TSSOP and 28-lead, low profile (4mm × 5mm × 0.75mm) L QFN packages. , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion 2.5VIN to 1.8V/1.5V Application Dropout Voltage vs Load Current
500 VIN IN1 OUT1 VOUT1 TJ = 25°C 2.5V 1.8V 450 3.3µF IN2 LT3030 10nF 10µF 750mA 113k 400 SHDN1 BYP1 1% 350 SHDN2 ADJ1 300 1M 1M 237k TAGE (mV) OUT2 1% 250 PWRGD1 200 OUT1 PWRGD2 OUT2 VOUT2 150 1.5V DROPOUT VOL 10nF 3.3µF 250mA 100 54.9k BYP2 1% 50 ADJ2 0 GND 0 75 150 225 300 375 450 525 600 675 750 237k 3030 TA01a 1% OUTPUT CURRENT (mA) 3030 TA01b 3030fa For more information www.linear.com/LT3030 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
