Datasheet LT3008 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 3μA IQ, 20mA, 45V Low Dropout Linear Regulators |
| Pages / Page | 20 / 1 — FEATURES. DESCRIPTION. Ultralow Quiescent Current: 3μA. Input Voltage … |
| File Format / Size | PDF / 242 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. Ultralow Quiescent Current: 3μA. Input Voltage Range: 2.0V to 45V. Output Current: 20mA
Model Line for this Datasheet
- LT3008EDC#PBF LT3008EDC#TRMPBF LT3008EDC#TRPBF LT3008EDC-1.2#PBF LT3008EDC-1.2#TRMPBF LT3008EDC-1.2#TRPBF LT3008EDC-1.5#PBF LT3008EDC-1.5#TRMPBF LT3008EDC-1.5#TRPBF LT3008EDC-1.8#PBF LT3008EDC-1.8#TRMPBF LT3008EDC-1.8#TRPBF LT3008EDC-2.5#PBF LT3008EDC-2.5#TRMPBF LT3008EDC-2.5#TRPBF LT3008EDC-3.3#PBF LT3008EDC-3.3#TRMPBF LT3008EDC-3.3#TRPBF LT3008EDC-5#PBF LT3008EDC-5#TRMPBF LT3008EDC-5#TRPBF LT3008ETS8#PBF LT3008ETS8#TRMPBF LT3008ETS8#TRPBF LT3008ETS8-1.2#PBF LT3008ETS8-1.2#TRMPBF LT3008ETS8-1.2#TRPBF LT3008ETS8-1.5#PBF LT3008ETS8-1.5#TRMPBF LT3008ETS8-1.5#TRPBF LT3008ETS8-1.8#PBF LT3008ETS8-1.8#TRMPBF LT3008ETS8-1.8#TRPBF LT3008ETS8-2.5#PBF LT3008ETS8-2.5#TRMPBF LT3008ETS8-2.5#TRPBF LT3008ETS8-3.3#PBF LT3008ETS8-3.3#TRMPBF LT3008ETS8-3.3#TRPBF LT3008ETS8-5#PBF LT3008ETS8-5#TRMPBF LT3008ETS8-5#TRPBF LT3008IDC#PBF LT3008IDC#TRMPBF LT3008IDC#TRPBF LT3008IDC-1.2#PBF LT3008IDC-1.2#TRMPBF LT3008IDC-1.2#TRPBF LT3008IDC-1.5#PBF LT3008IDC-1.5#TRMPBF LT3008IDC-1.5#TRPBF LT3008IDC-1.8#PBF LT3008IDC-1.8#TRMPBF LT3008IDC-1.8#TRPBF LT3008IDC-2.5#PBF LT3008IDC-2.5#TRMPBF LT3008IDC-2.5#TRPBF LT3008IDC-3.3#PBF LT3008IDC-3.3#TRMPBF LT3008IDC-3.3#TRPBF LT3008IDC-5#PBF LT3008IDC-5#TRMPBF LT3008IDC-5#TRPBF LT3008ITS8#PBF LT3008ITS8#TRMPBF LT3008ITS8#TRPBF LT3008ITS8-1.2#PBF LT3008ITS8-1.2#TRMPBF LT3008ITS8-1.2#TRPBF LT3008ITS8-1.5#PBF LT3008ITS8-1.5#TRMPBF LT3008ITS8-1.5#TRPBF LT3008ITS8-1.8#PBF LT3008ITS8-1.8#TRMPBF LT3008ITS8-1.8#TRPBF LT3008ITS8-2.5#PBF LT3008ITS8-2.5#TRMPBF LT3008ITS8-2.5#TRPBF LT3008ITS8-3.3#PBF LT3008ITS8-3.3#TRMPBF LT3008ITS8-3.3#TRPBF LT3008ITS8-5#PBF LT3008ITS8-5#TRMPBF LT3008ITS8-5#TRPBF LT3008MPTS8 LT3008MPTS8#PBF LT3008MPTS8#TR LT3008MPTS8#TRM LT3008MPTS8#TRMPBF LT3008MPTS8#TRPBF LT3008MPTS8-1.2#PBF LT3008MPTS8-1.2#TRMPBF LT3008MPTS8-1.2#TRPBF LT3008MPTS8-1.5#PBF LT3008MPTS8-1.5#TRMPBF LT3008MPTS8-1.5#TRPBF LT3008MPTS8-1.8#PBF LT3008MPTS8-1.8#TRMPBF LT3008MPTS8-1.8#TRPBF LT3008MPTS8-2.5#PBF LT3008MPTS8-2.5#TRMPBF LT3008MPTS8-2.5#TRPBF LT3008MPTS8-3.3 LT3008MPTS8-3.3#PBF LT3008MPTS8-3.3#TRM LT3008MPTS8-3.3#TRMPBF LT3008MPTS8-3.3#TRPBF LT3008MPTS8-5#PBF LT3008MPTS8-5#TRMPBF LT3008MPTS8-5#TRPBF
- LT3008EDC#TRMPBF LT3008EDC#TRPBF LT3008EDC-1.2#TRMPBF LT3008EDC-1.2#TRPBF LT3008EDC-1.5#TRMPBF LT3008EDC-1.5#TRPBF LT3008EDC-1.8#TRMPBF LT3008EDC-1.8#TRPBF LT3008EDC-2.5#TRMPBF LT3008EDC-2.5#TRPBF LT3008EDC-3.3#TRMPBF LT3008EDC-3.3#TRPBF LT3008EDC-5#TRMPBF LT3008EDC-5#TRPBF LT3008ETS8#TRMPBF LT3008ETS8#TRPBF LT3008ETS8-1.2#TRMPBF LT3008ETS8-1.2#TRPBF LT3008ETS8-1.5#TRMPBF LT3008ETS8-1.5#TRPBF LT3008ETS8-1.8#TRMPBF LT3008ETS8-1.8#TRPBF LT3008ETS8-2.5#TRMPBF LT3008ETS8-2.5#TRPBF LT3008ETS8-3.3#TRMPBF LT3008ETS8-3.3#TRPBF LT3008ETS8-5#TRMPBF LT3008ETS8-5#TRPBF LT3008IDC#TRMPBF LT3008IDC#TRPBF LT3008IDC-1.2#TRMPBF LT3008IDC-1.2#TRPBF LT3008IDC-1.5#TRMPBF LT3008IDC-1.5#TRPBF LT3008IDC-1.8#TRMPBF LT3008IDC-1.8#TRPBF LT3008IDC-2.5#TRMPBF LT3008IDC-2.5#TRPBF LT3008IDC-3.3#TRMPBF LT3008IDC-3.3#TRPBF LT3008IDC-5#TRMPBF LT3008IDC-5#TRPBF LT3008ITS8#TRMPBF LT3008ITS8#TRPBF LT3008ITS8-1.2#TRMPBF LT3008ITS8-1.2#TRPBF LT3008ITS8-1.5#TRMPBF LT3008ITS8-1.5#TRPBF LT3008ITS8-1.8#TRMPBF LT3008ITS8-1.8#TRPBF LT3008ITS8-2.5#TRMPBF LT3008ITS8-2.5#TRPBF LT3008ITS8-3.3#TRMPBF LT3008ITS8-3.3#TRPBF LT3008ITS8-5#TRMPBF LT3008ITS8-5#TRPBF LT3008MPTS8#TRMPBF LT3008MPTS8#TRPBF LT3008MPTS8-1.2#TRMPBF LT3008MPTS8-1.2#TRPBF LT3008MPTS8-1.5#TRMPBF LT3008MPTS8-1.5#TRPBF LT3008MPTS8-1.8#TRMPBF LT3008MPTS8-1.8#TRPBF LT3008MPTS8-2.5#TRMPBF LT3008MPTS8-2.5#TRPBF LT3008MPTS8-3.3#TRMPBF LT3008MPTS8-3.3#TRPBF LT3008MPTS8-5#TRMPBF LT3008MPTS8-5#TRPBF
Text Version of Document
LT3008 Series 3µA IQ, 20mA, 45V Low Dropout Linear Regulators
FEATURES DESCRIPTION
n
Ultralow Quiescent Current: 3μA
The LT®3008 series are micropower, low dropout voltage n
Input Voltage Range: 2.0V to 45V
(LDO) linear regulators. The devices supply 20mA output n
Output Current: 20mA
current with a dropout voltage of 300mV. No-load quiescent n
Dropout Voltage: 300mV
current is 3μA. Ground pin current remains at less than n
Adjustable Output (VADJ = VOUT(MIN) = 600mV)
5% of output current as load increases. In shutdown, n
Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
quiescent current is less than 1μA. n Output Tolerance: ±2% Over Load, Line and The LT3008 regulators optimize stability and transient Temperature response with low ESR ceramic capacitors, requiring a n Stable with Low ESR, Ceramic Output Capacitors minimum of only 2.2μF. The regulators do not require (2.2μF Minimum) the addition of ESR as is common with other regulators. n Shutdown Current: <1μA Internal protection circuitry includes current limiting, n Current Limit Protection thermal limiting, reverse-battery protection and reverse- n Reverse-Battery Protection current protection. n Thermal Limit Protection n TSOT-23 and 2mm × 2mm DFN Packages The LT3008 series are ideal for applications that require moderate output drive capability coupled with ultralow
APPLICATIONS
standby power consumption. The device is available in n fi xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and Automotive n 5V, and an adjustable version with an output voltage range Low Current Battery-Powered Systems n of 0.6V to 44.5V. The LT3008 is available in the thermally Keep-Alive Power Supplies n enhanced 6-lead DFN and 8-lead TSOT-23 packages. Remote Monitoring n Utility Meters L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Low Power Industrial Applications
TYPICAL APPLICATION 3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent Current
500 6 ILOAD = 20mA 450 DROPOUT VOUT VOLTAGE 5 IN OUT 3.3V QUIESCENT CURRENT (μA) V 400 IN 20mA 3.8V TO 1μF 2.2μF 350 45V LT3008-3.3 4 300 SHDN SENSE 250 3 IQ GND 200 2 150 3008 TA01a DROPOUT VOLTAGE (mV) 100 1 50 0 0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 3008 TA01b 3008fc 1
FEATURES DESCRIPTION
n
Ultralow Quiescent Current: 3μA
The LT®3008 series are micropower, low dropout voltage n
Input Voltage Range: 2.0V to 45V
(LDO) linear regulators. The devices supply 20mA output n
Output Current: 20mA
current with a dropout voltage of 300mV. No-load quiescent n
Dropout Voltage: 300mV
current is 3μA. Ground pin current remains at less than n
Adjustable Output (VADJ = VOUT(MIN) = 600mV)
5% of output current as load increases. In shutdown, n
Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
quiescent current is less than 1μA. n Output Tolerance: ±2% Over Load, Line and The LT3008 regulators optimize stability and transient Temperature response with low ESR ceramic capacitors, requiring a n Stable with Low ESR, Ceramic Output Capacitors minimum of only 2.2μF. The regulators do not require (2.2μF Minimum) the addition of ESR as is common with other regulators. n Shutdown Current: <1μA Internal protection circuitry includes current limiting, n Current Limit Protection thermal limiting, reverse-battery protection and reverse- n Reverse-Battery Protection current protection. n Thermal Limit Protection n TSOT-23 and 2mm × 2mm DFN Packages The LT3008 series are ideal for applications that require moderate output drive capability coupled with ultralow
APPLICATIONS
standby power consumption. The device is available in n fi xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and Automotive n 5V, and an adjustable version with an output voltage range Low Current Battery-Powered Systems n of 0.6V to 44.5V. The LT3008 is available in the thermally Keep-Alive Power Supplies n enhanced 6-lead DFN and 8-lead TSOT-23 packages. Remote Monitoring n Utility Meters L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Low Power Industrial Applications
TYPICAL APPLICATION 3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent Current
500 6 ILOAD = 20mA 450 DROPOUT VOUT VOLTAGE 5 IN OUT 3.3V QUIESCENT CURRENT (μA) V 400 IN 20mA 3.8V TO 1μF 2.2μF 350 45V LT3008-3.3 4 300 SHDN SENSE 250 3 IQ GND 200 2 150 3008 TA01a DROPOUT VOLTAGE (mV) 100 1 50 0 0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 3008 TA01b 3008fc 1
