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LT3015IDD-2.5

更新时间： 2024-11-28 05:00:35
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
26页 542K
描述
Fixed Negative LDO Regulator, 2.5V, 0.5V Dropout, PDSO8

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LT3015IDD-2.5 数据手册

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LT3015 Series  
1.5A, Low Noise,  
Negative Linear Regulator  
with Precision Current Limit  
FEATURES  
DESCRIPTION  
The LT®3015 series are low noise, low dropout, negative  
linear regulators with fast transient response. The devices  
supply up to 1.5A of output current at a typical dropout  
voltage of 310mV. Operating quiescent current is typically  
1.1mA and drops to < 1µA in shutdown. Quiescent current  
is also well controlled in dropout. In addition to fast tran-  
sient response, the LT3015 series exhibit very low output  
noise, making them ideal for noise sensitive applications.  
n
Output Current: 1.5A  
n
Dropout Voltage: 310mV  
n
Precision Current Limit with Foldback  
Low Output Noise: 60µV  
Low Quiescent Current: 1.1mA  
Precision Positive or Negative Shutdown Logic  
Fast Transient Response  
Wide Input Voltage Range: –1.8V to –30V  
Adjustable Output Voltage Range: –1.22V to –29.3V  
Fixed Output Voltages: –2.5V, –3V, –3.3V, –5V, –12V, –15V  
Controlled Quiescent Current in Dropout  
<1µA Quiescent Current in Shutdown  
Stable with 10µF Output Capacitor  
Stable with Ceramic, Tantalum or Aluminum Capacitors  
Thermal Limit with Hysteresis  
Reverse Output Protection  
n
(10Hz to 100kHz)  
RMS  
n
n
n
n
n
n
n
n
n
n
n
n
n
The LT3015 regulators are stable with a minimum 10µF  
output capacitor. Moreover, the regulator can use small  
ceramic capacitors without the necessary addition of ESR  
as is common with other regulators. Internal protection  
circuitryincludesreverseoutputprotection,precisioncur-  
rent limit with foldback and thermal limit with hysteresis.  
The LT3015 regulators are available in fixed output volt-  
ages of –2.5V, –3V, –3.3V, –5V, –12V and –15V and as an  
adjustable device with a –1.22V reference voltage. Pack-  
ages include the 5-lead TO-220 and DD-Pak, a thermally  
enhanced 12-lead MSOP and the low profile (0.75 mm)  
8-lead 3mm × 3mm DFN.  
5-Lead TO-220 and DD-Pak, Thermally Enhanced  
12-Lead MSOP and 8-Lead 3mm × 3mm × 0.75mm  
DFN Packages  
APPLICATIONS  
L, 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.  
n
Post-Regulator for Switching Supplies  
n
Negative Logic Supplies  
n
Low Noise Instrumentation  
Industrial Supplies  
Negative Complement to the LT1963A  
n
n
Dropout Voltage  
TYPICAL APPLICATION  
450  
T
= 25°C  
J
–5V, –1.5A, Low Noise Regulator  
400  
350  
300  
250  
200  
150  
100  
50  
GND  
DD-PAK/TO-220  
LT3015-5  
10µF  
10µF  
SHDN  
SENSE  
DFN/MSOP  
V
V
OUT  
–5V  
–1.5A  
IN  
IN  
OUT  
–5.5V TO  
–30V  
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  
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