© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 1
1 Publication Order Number:
NCP59744/D
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
• V
IN
Range: 0.8 V to 5.5 V
• V
BIAS
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
Figure 1. Typical Application Schematic
NCP59744
QFN20
CASE 485DB
MARKING DIAGRAM
www.onsemi.com
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)
PIN CONNECTIONS
See detailed ordering, marking and shipping information in the
package dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
NCP59744
AWLYYWWG
G
QFN20
1
QFN20, 5x5, 0.65P
IN
IN
IN
PG
BIAS
OUT
OUT
OUT
NC
FB
IN
NC
NC
NC
OUT
EN
GND
NC
NC
SS
GND
20
19
18
17
16
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6
7
8
9
10
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