參數(shù)資料
型號: LR1117
廠商: 樂山無線電股份有限公司
元件分類: 基準電壓源/電流源
英文描述: 5.0 AMP POSITIVE VOLTAGE REGULATOR
中文描述: 5.0放大器正電壓穩(wěn)壓器
文件頁數(shù): 1/10頁
文件大?。?/td> 121K
代理商: LR1117
very tight output voltage tolerance, within ±1% at 25°C. The
ADJUSTABLE LR1117/A is pin to pin compatible with the
other standard Adjustable voltage regulators maintaining the
better performances in terms of Drop and Tolerance.
FEATURES
*Low dropout voltage (1V Typ.)
*2.85V device performances are suitable for SCSI-2 active
termination
*Output current up to 0.8/1.0A
*Fixed output voltage of: 1.5V, 1.8V, 2.5V, 2,85V, 3.0V, 3.3V,
*
3.6V, 5.0V
*Adjustable version availability (Vref=1.25V)
*Internal current and thermal limit
*Available in ±1%(at 25°C) and 2% in all temperature range
*Supply voltage rejection: 75dB (TYP)
*Temperature range: 0°C to 125°C
is assured by NPN pass transistor. In fact in the case, unlike
than PNP one, the Quiescent Current flows mostly into the
for stability. On chip trimming allows the regulator to reach a
The LRC LR1117/A is a LOW DROP Voltage Regulator
able to provide up to 0.8/1.0A of Output Current, available
even in adjustable version (Vref=1.25V). Concerning fixed
versions, are offered the following Output Voltages: 1.5V,
1.8V, 2.5V, 2.85V, 3.0V, 3.3V, 3.6V and 5.0V. The 2.85V type
is ideal for SCSI-2 lines active termination. High efficiency
DESCRIPTION
LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
ABSOLUTE MAXIMUM RATINGS
PARAMETER
DC Input Voltage
Power Dissipation
Storage temperature
Operating Junction Temperature
Thermal Resistance Junction
SYMBOL
V
IN
Ptot
Tstg
Top
VALUE
15
12
-65 ~ +150
0 ~ +125
UNIT
V
W
q
C
q
C
Note: Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional
operation under there condition is not implied. Over the above suggested Max Power Dissipation a Short Circuit
could definitively damage the device.
50
°C/W
ambien
Rthj-amb
LRC
LESHAN RADIO COMPANY,LTD.
1/10
2
1: GND 2: Out
p
ut 3: Input
3
1
2
3
1
23
1
TO-252
SOT-223
TO-220
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