FAN1951D18X Datasheet PDF - Fairchild Semiconductor
Part Number | FAN1951D18X | |
Description | 1.5A Low-Voltage Low-Dropout Regulator | |
Manufacturers | Fairchild Semiconductor | |
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FAN1950/FAN1951
1.5A Low-Voltage Low-Dropout Regulator
Features
• 1.5A minimum guaranteed output current
• 500mV maximum dropout at 1.5A
Ideal for 2.5V to 1.8V or 1.65V conversion
Ideal for 3.0V to 2.5V conversion
• Current Limiting and Thermal shutdown
• External Shut-down control (FAN1951 only)
• Error flag output (FAN1951 only)
• Fast transient response
• Low ground current
Applications
• General purpose conversion for low-voltage CPUs,
DSP and FPGAs
• SMPS post regulator
• Cable/Satellite set-top boxes
• PCI Graphics adapter cards
General Description
The FAN1950 and FAN1951 are 1.5A low-dropout linear
regulators that provide a low voltage, high current output
with a minimum of external components. Both of these
devices use a PNP output pass element achieving a maxi-
mum 500mV dropout at 1.5A load current. In addition these
devices offer overcurrent limit and thermal shutdown
features to ensure full protection.
The FAN1951 offers a logic level enable pin and an error
flag output to indicate undervoltage and over-current condi-
tions. 1.8V and 2.5V fixed output versions are available.
3.3V, 1.65V and 1.5V options are available upon request.
Typical Application
FAN1950-2.5V
FAN1951-1.8V
3.0V
2.5V
IN OUT
GND
10µF
2.5V IN OUT
100KΩ
Error Output
On/Off
FLAG
EN
GND
1.8V
10µF
REV. 0.1.6 8/30/04
|
|
Typical Performance Characteristics
0.6
0.5
0.4
0.3
0.2
0.1
0
0.5
Dropout Voltage vs. Output Current
+125°C
+25°C
-40°C
-10°C
+75°C
0.7 0.9 1.1 1.3
Load Current (A)
1.5
25.00
20.00
15.00
10.00
5.00
0.00
0
Ground Current vs. Load Current
Vin = Vout + 1V, 25°C
I gnd (mA)
500
1000
1500
Load Current (mA)
2000
FAN1950/FAN1951
0.6
0.5
0.4
0.3
0.2
0.1
0
-50
Dropout Voltage vs. Temperature
IL = 1.5A
IL = 1A
0 50 100
Tj
Vout = 2.5V, 1.8V, Iout = 1A, 1.5A
150
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
Ground Current vs. Supply Voltage
Vin = Vout + 1V, 25°C
5 10 15
Vin (V)
Iout = 10mA
20
REV. 0.1.6 8/30/04
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FAN1951D18X electronic component. |
Information | Total 11 Pages | |
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Download | [ FAN1951D18X.PDF Datasheet ] |
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Part Number | Description | MFRS |
FAN1951D18X | The function is 1.5A Low-Voltage Low-Dropout Regulator. Fairchild Semiconductor | |
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