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PDF NCP59744 Data sheet ( Hoja de datos )
| Número de pieza | NCP59744 | |
| Descripción | Dual-Rail Very Low-Dropout Linear Regulator | |
| Fabricantes | ON Semiconductor | |
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NCP59744
3.0 A, Dual-Rail Very
Low-Dropout Linear
Regulator with
Programmable Soft-Start
The NCP59744 is dual−rail very low dropout voltage regulator that
is capable of providing an output current in excess of 3.0 A with a
dropout voltage of 115 mV typ. at full load current. The devices are
stable with ceramic and other low ESR output capacitors. This series
contains adjustable output voltage version with output voltage down
to 0.8 V. Internal protection features consist of built−in thermal
shutdown and output current limiting protection. User−programmable
Soft−Start and Power Good pins are available. The NCP59744 is
available in QFN20−5x5−0.65P package.
Features
• Output Current in Excess of 3.0 A
• 0.25% Typical Accuracy Over Line and Load
• VIN Range: 0.8 V to 5.5 V
• VBIAS Range: 2.2 V to 5.5 V
• Output Voltage Range: 0.8 V to 3.6 V
• Dropout Voltage: 115 mV at 3 A
• Programmable Soft Start
• Open Drain Power Good Output
• Excellent Transient Response
• Current Limit and Thermal Shutdown Protection
• These are Pb−Free Devices
Applications
• Telecom and Industrial Equipment Point of Load Regulation
• FPGA, DSP and Logic Power Supplies
• Switching Power Supply Post Regulation
• Applications with Specific Start−up Time or Sequencing
Requirements
NCP59744
www.onsemi.com
QFN20
CASE 485DB
PIN CONNECTIONS
IN
IN
IN
PG
BIAS
54321
6 20
7 19
8 GND 18
9 17
10 16
11 12 13 14 15
OUT
OUT
OUT
NC
FB
QFN20, 5x5, 0.65P
MARKING DIAGRAM
1
NCP59744
AWLYYWWG
G
QFN20
A = Assembly Location
L/WL = Wafer Lot
Y/YY = Year
W/WW = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
Figure 1. Typical Application Schematic
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 9 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 1
1
Publication Order Number:
NCP59744/D
1 page  
NCP59744
0.20
0.15
0.10
0.05
0
−0.05
−0.10
−0.15
−0.20
0
TYPICAL CHARACTERISTICS
At TJ = +25°C, VOUT = 1.5 V, VIN = VOUT(TYP) + 0.3 V, VBIAS = 3.3 V, IOUT = 50 mA, VEN = VIN,
CIN = 1 mF, CBIAS = 1 mF, CSS = 0.01 mF, and COUT = 10 mF, unless otherwise noted.
0.5
0.4
0.3
−40°C
+125°C
0.2
0.1 −40°C
+125°C
+25°C
0
−0.1 +25°C
−0.2
−0.3
−0.4
−0.5
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0.5 1.0 1.5 2.0 2.5 3.0 3.5
VIN − VOUT (V)
Figure 3. VIN Line Regulation
VBIAS − VOUT (V)
Figure 4. VBIAS Line Regulation
4.0
0.5
0.4
0.3
0.2
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
0
+125°C
+25°C
−40°C
10 20 30 40
IOUT, OUTPUT CURRENT (mA)
Figure 5. Load Regulation
0.5
0.4
0.3
0.2
0.1
0
−0.1
−0.2
−0.3
−0.4
−0.5
50 0
+125°C
+25°C
−40°C
0.5 1.0 1.5 2.0 2.5
IOUT, OUTPUT CURRENT (A)
Figure 6. Load Regulation
3.0
140
+125°C
120
100 +25°C
80
60 −40°C
40
20
0
0 0.5 1.0 1.5 2.0 2.5 3.0
IOUT, OUTPUT CURRENT (A)
Figure 7. VIN Dropout Voltage vs. IOUT and
Temperature TJ
500
450
400 IOUT = 3 A
350
300
250
200 +25°C
150 +125°C
100
50 −40°C
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VBIAS − VOUT (V)
Figure 8. VIN Dropout Voltage vs. (VBIAS −
VOUT) and Temperature TJ
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5
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| PDF Descargar | [ Datasheet NCP59744.PDF ] | |
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