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LD1117DT18TR

Linear Voltage Regulator IC Positive Fixed 1 Output 800mA DPAK

Manufacturer:

ST
Mfr.Part #:

LD1117DT18TR
Datasheet:

LD1117DT18TR Datasheet (PDF)
Output Configuration:

Positive
Output Type:

Fixed
Number of Regulators:

1
Voltage - Input (Max):

15V
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LD1117DT18TR General Description

The LD1117 is a low drop voltage regulator able to provide up to 800 mA of output current, available even in adjustable version (VREF= 1.25 V). Concerning fixed versions, are offered the following output voltages: 1.2 V, 1.8 V, 2.5 V, 2.85 V, 3.3 V and 5.0 V. The device is supplied in: SOT-223, DPAK, SO-8 and TO-220. The SOT-223 and DPAK surface mount packages optimize the thermal characteristics even offering a relevant space saving effect. High efficiency is assured by NPN pass transistor. In fact in this case, unlike than PNP one, the quiescent current flows mostly into the load. Only a very common 10 μF minimum capacitor is needed for stability. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 1 % at 25 °C. The adjustable LD1117 is pin to pin compatible with the other standard. Adjustable voltage regulators maintaining the better performances in terms of drop and tolerance.

Key Features

Low dropout voltage (1 V typ.)
2.85 V device performances are suitable for SCSI-2 active termination
Output current up to 800 mA
Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V
Adjustable version availability (V_REF= 1.25 V)
Internal current and thermal limit
Available in ± 1 % (at 25 °C) and 2 % in full temperature range
Supply voltage rejection: 75 dB (typ.)

Specifications

Output Configuration	Positive	Output Type	Fixed
Number of Regulators	1	Voltage - Input (Max)	15V
Voltage - Output (Min/Fixed)	1.8V	Voltage - Output (Max)	-
Voltage Dropout (Max)	1.2V @ 800mA	Current - Output	800mA
Current - Quiescent (Iq)	10 mA	Current - Supply (Max)	-
PSRR	75dB (120Hz)	Control Features	-
Protection Features	Over Current, Over Temperature	Operating Temperature	0°C ~ 125°C
Mounting Type	Surface Mount