Datasheet LT3015 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit |
| Pages / Page | 26 / 1 — FEATURES. DESCRIPTION. Output Current: 1.5A. Dropout Voltage: 310mV. … |
| File Format / Size | PDF / 555 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. Output Current: 1.5A. Dropout Voltage: 310mV. Precision Current Limit with Foldback
Model Line for this Datasheet
- LT3015EDD#PBF LT3015EDD#TRPBF LT3015EDD-12#PBF LT3015EDD-12#TRPBF LT3015EDD-15#PBF LT3015EDD-15#TRPBF LT3015EDD-2.5#PBF LT3015EDD-2.5#TRPBF LT3015EDD-3#PBF LT3015EDD-3#TRPBF LT3015EDD-3.3#PBF LT3015EDD-3.3#TRPBF LT3015EDD-5#PBF LT3015EDD-5#TRPBF LT3015EMSE#PBF LT3015EMSE#TRPBF LT3015EMSE-12#PBF LT3015EMSE-12#TRPBF LT3015EMSE-15#PBF LT3015EMSE-15#TRPBF LT3015EMSE-2.5#PBF LT3015EMSE-2.5#TRPBF LT3015EMSE-3#PBF LT3015EMSE-3#TRPBF LT3015EMSE-3.3#PBF LT3015EMSE-3.3#TRPBF LT3015EMSE-5#PBF LT3015EMSE-5#TRPBF LT3015EQ#PBF LT3015EQ#TRPBF LT3015EQ-12#PBF LT3015EQ-12#TRPBF LT3015EQ-15#PBF LT3015EQ-15#TRPBF LT3015EQ-2.5#PBF LT3015EQ-2.5#TRPBF LT3015EQ-3#PBF LT3015EQ-3#TRPBF LT3015EQ-3.3#PBF LT3015EQ-3.3#TRPBF LT3015EQ-5#PBF LT3015EQ-5#TRPBF LT3015ET#PBF LT3015ET-12#PBF LT3015ET-15#PBF LT3015ET-2.5#PBF LT3015ET-3#PBF LT3015ET-3.3#PBF LT3015ET-5#PBF LT3015IDD#PBF LT3015IDD#TRPBF LT3015IDD-12#PBF LT3015IDD-12#TRPBF LT3015IDD-15#PBF LT3015IDD-15#TRPBF LT3015IDD-2.5#PBF LT3015IDD-2.5#TRPBF LT3015IDD-3#PBF LT3015IDD-3#TRPBF LT3015IDD-3.3#PBF LT3015IDD-3.3#TRPBF LT3015IDD-5#PBF LT3015IDD-5#TRPBF LT3015IMSE#PBF LT3015IMSE#TRPBF LT3015IMSE-12#PBF LT3015IMSE-12#TRPBF LT3015IMSE-15#PBF LT3015IMSE-15#TRPBF LT3015IMSE-2.5#PBF LT3015IMSE-2.5#TRPBF LT3015IMSE-3#PBF LT3015IMSE-3#TRPBF LT3015IMSE-3.3#PBF LT3015IMSE-3.3#TRPBF LT3015IMSE-5#PBF LT3015IMSE-5#TRPBF LT3015IQ#PBF LT3015IQ#TRPBF LT3015IQ-12#PBF LT3015IQ-12#TRPBF LT3015IQ-15#PBF LT3015IQ-15#TRPBF LT3015IQ-2.5#PBF LT3015IQ-2.5#TRPBF LT3015IQ-3#PBF LT3015IQ-3#TRPBF LT3015IQ-3.3#PBF LT3015IQ-3.3#TRPBF LT3015IQ-5#PBF LT3015IQ-5#TRPBF LT3015IT#PBF LT3015IT-12#PBF LT3015IT-15#PBF LT3015IT-2.5#PBF LT3015IT-3#PBF LT3015IT-3.3#PBF LT3015IT-5#PBF LT3015MPMSE#PBF LT3015MPMSE#TR LT3015MPMSE#TRPBF LT3015MPMSE-12#PBF LT3015MPMSE-12#TRPBF LT3015MPMSE-15#PBF LT3015MPMSE-15#TRPBF LT3015MPMSE-2.5#PBF LT3015MPMSE-2.5#TRPBF LT3015MPMSE-3#PBF LT3015MPMSE-3#TRPBF LT3015MPMSE-3.3#PBF LT3015MPMSE-3.3#TRPBF LT3015MPMSE-5 LT3015MPMSE-5#PBF LT3015MPMSE-5#TRPBF LT3015MPQ#PBF LT3015MPQ#TRPBF LT3015MPQ-12#PBF LT3015MPQ-12#TRPBF LT3015MPQ-15#PBF LT3015MPQ-15#TRPBF LT3015MPQ-2.5#PBF LT3015MPQ-2.5#TRPBF LT3015MPQ-3#PBF LT3015MPQ-3#TRPBF LT3015MPQ-3.3#PBF LT3015MPQ-3.3#TRPBF LT3015MPQ-5#PBF LT3015MPQ-5#TRPBF
Text Version of Document
LT3015 Series 1.5A, Low Noise, Negative Linear Regulator with Precision Current Limit
FEATURES DESCRIPTION
n
Output Current: 1.5A
The LT®3015 series are low noise, low dropout, negative n
Dropout Voltage: 310mV
linear regulators with fast transient response. The devices n
Precision Current Limit with Foldback
supply up to 1.5A of output current at a typical dropout n
Low Output Noise: 60µVRMS (10Hz to 100kHz)
voltage of 310mV. Operating quiescent current is typically n
Low Quiescent Current: 1.1mA
1.1mA and drops to < 1µA in shutdown. Quiescent current n
Precision Positive or Negative Shutdown Logic
is also well controlled in dropout. In addition to fast tran- n
Fast Transient Response
sient response, the LT3015 series exhibit very low output n Wide Input Voltage Range: –1.8V to –30V noise, making them ideal for noise sensitive applications. n Adjustable Output Voltage Range: –1.22V to –29.3V The LT3015 regulators are stable with a minimum 10µF n Fixed Output Voltages: –2.5V, –3V, –3.3V, –5V, –12V, –15V output capacitor. Moreover, the regulator can use small n Controlled Quiescent Current in Dropout ceramic capacitors without the necessary addition of ESR n <1µA Quiescent Current in Shutdown as is common with other regulators. Internal protection n Stable with 10µF Output Capacitor circuitry includes reverse output protection, precision cur- n Stable with Ceramic, Tantalum or Aluminum Capacitors rent limit with foldback and thermal limit with hysteresis. n Thermal Limit with Hysteresis n Reverse Output Protection The LT3015 regulators are available in fixed output volt- n 5-Lead TO-220 and DD-Pak, Thermally Enhanced ages of –2.5V, –3V, –3.3V, –5V, –12V and –15V and as an 12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm adjustable device with a –1.22V reference voltage. Pack- DFN Packages ages include the 5-lead TO-220 and DD-Pak, a thermally enhanced 12-lead MSOP and the low profile (0.75 mm)
APPLICATIONS
8-lead 3mm × 3mm DFN. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and n Post-Regulator for Switching Supplies ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Negative Logic Supplies n Low Noise Instrumentation n Industrial Supplies n Negative Complement to the LT1963A
TYPICAL APPLICATION Dropout Voltage
450 T
–5V, –1.5A, Low Noise Regulator
J = 25°C 400 350 GND 300 DD-PAK/TO-220 LT3015-5 TAGE (mV) 250 10µF 10µF 200 SHDN SENSE DFN/MSOP 150 VIN VOUT DROPOUT VOL –5.5V TO IN OUT –5V 100 –30V –1.5A 50 3015 TA01 0 0 –0.2 –0.4 –0.6 –0.8 –1.0 –1.2 –1.4 –1.6 LOAD CURRENT (A) 3015 TA01a 3015fb 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Output Current: 1.5A
The LT®3015 series are low noise, low dropout, negative n
Dropout Voltage: 310mV
linear regulators with fast transient response. The devices n
Precision Current Limit with Foldback
supply up to 1.5A of output current at a typical dropout n
Low Output Noise: 60µVRMS (10Hz to 100kHz)
voltage of 310mV. Operating quiescent current is typically n
Low Quiescent Current: 1.1mA
1.1mA and drops to < 1µA in shutdown. Quiescent current n
Precision Positive or Negative Shutdown Logic
is also well controlled in dropout. In addition to fast tran- n
Fast Transient Response
sient response, the LT3015 series exhibit very low output n Wide Input Voltage Range: –1.8V to –30V noise, making them ideal for noise sensitive applications. n Adjustable Output Voltage Range: –1.22V to –29.3V The LT3015 regulators are stable with a minimum 10µF n Fixed Output Voltages: –2.5V, –3V, –3.3V, –5V, –12V, –15V output capacitor. Moreover, the regulator can use small n Controlled Quiescent Current in Dropout ceramic capacitors without the necessary addition of ESR n <1µA Quiescent Current in Shutdown as is common with other regulators. Internal protection n Stable with 10µF Output Capacitor circuitry includes reverse output protection, precision cur- n Stable with Ceramic, Tantalum or Aluminum Capacitors rent limit with foldback and thermal limit with hysteresis. n Thermal Limit with Hysteresis n Reverse Output Protection The LT3015 regulators are available in fixed output volt- n 5-Lead TO-220 and DD-Pak, Thermally Enhanced ages of –2.5V, –3V, –3.3V, –5V, –12V and –15V and as an 12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm adjustable device with a –1.22V reference voltage. Pack- DFN Packages ages include the 5-lead TO-220 and DD-Pak, a thermally enhanced 12-lead MSOP and the low profile (0.75 mm)
APPLICATIONS
8-lead 3mm × 3mm DFN. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and n Post-Regulator for Switching Supplies ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. n Negative Logic Supplies n Low Noise Instrumentation n Industrial Supplies n Negative Complement to the LT1963A
TYPICAL APPLICATION Dropout Voltage
450 T
–5V, –1.5A, Low Noise Regulator
J = 25°C 400 350 GND 300 DD-PAK/TO-220 LT3015-5 TAGE (mV) 250 10µF 10µF 200 SHDN SENSE DFN/MSOP 150 VIN VOUT DROPOUT VOL –5.5V TO IN OUT –5V 100 –30V –1.5A 50 3015 TA01 0 0 –0.2 –0.4 –0.6 –0.8 –1.0 –1.2 –1.4 –1.6 LOAD CURRENT (A) 3015 TA01a 3015fb 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
