The APL5940 integrates many functions. A Power-On- Reset (POR) circuit monitors both supply voltages on VCNTL and VIN pins to prevent erroneous operations. The functions of thermal shutdown and cur
Features
Compatible with APL5913
Ultra Low Dropout
- 0.30V(typical) at 4A Output Current
Low ESR Output Capacitor (Multi-Layer Chip Ca
pacitors (MLCC)) Applicable
0.8V Reference Voltage
High Output Accuracy
- ±1.5% over Line, Load, and Temperature Range
Fast Transient Response
Adjustable Output Voltage
Power-On-Reset Monitoring on Both VCNTL and
VIN Pins
Inernal Soft-Start
Current-Limit and Short Current-Limit Protections
Thermal Shutdown with Hysteresis
Open-Drain VOUT Voltage Indicator (POK)
Low Shutdown Quiescent Current (<30 µA)
Shutdown/Enable Control Function
Simple SOP-8P Package with Exposed Pad
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APL5940 is a 4A ultra low dropout linear regulator.
The IC needs two supply voltages, one is a control voltage
(VCNTL) for the control circuitry, the other is a main supply
voltage (VIN) for power conversion, to reduce power dissi-
pation and provide extremely low dropout voltage.
The APL5940 integrates many functions. A Power-On-
Reset (POR) circuit monitors both supply voltages on
VCNTL and VIN pins to prevent erroneous operations.
The functions of thermal shutdown and current-limit pro-
tect the device against thermal and current over-loads. A
POK indicates the output voltage status with a delay time
set internally. It can control other converter for power
sequence. The APL5940 can be enabled by other power
systems. Pulling and holding the EN voltage below 0.4V
shuts off the output.
The APL5940 is available in a SOP-8P package which
features small size as SOP-8 and an Exposed Pad to
reduce the junction-to-case resistance to extend power
range of applications.
Applications
· Front Side Bus VTT
· NoteBook PC Applications
·
-33Motherboard Applications

相关文件
Part _No | Package & Pins | Input Voltage (V) | VCNTL Voltage (V) | Quiescent Current (typ) (uA) | Reference Voltage (V) | Fixed Output Voltage (V) | Output Current (max) (A) | Dropout Voltage (typ) (V) | EN | POK | High PSRR | Low Noise | ||
min | max | min | max | |||||||||||
APL5155 | SOT-23-5 | 5.4 | 25 | N | N | 15 | 1.24 | 3.3 | 0.15 | 0.75 | Y | N | N | N |
APL5156 | SOT-23-5 | 6.5 | 25 | N | N | 70 | 1.24 | 3.3 | 0.15 | 1.9 | T | N | N | N |
APL78L05 | SOP-8 | 7 | 27 | N | N | 150 | N | 5 | 0.15 | 1.9 | N | N | N | N |
APL5833 | SOT-89 | 2.75 | 9 | N | N | 6000 | 1.25 | 2.85 | 0.3 | 1.2 | N | N | N | N |
APL5883 | SOT-89 | 2.75 | 9 | N | N | 6000 | 1.25 | 2.85 | 0.3 | 1.2 | N | N | N | N |
APL5835 | SOT-89 | 2.95 | 9 | N | N | 6000 | 1.25 | 1.8 | 0.45 | 1.3 | N | N | N | N |
APL5885 | SOT-89 | 2.95 | 9 | N | N | 6000 | 1.25 | 1.8 | 0.5 | 1.3 | N | N | N | N |
APL1088 | SOT-89 | 2.95 | 9 | N | N | 5500 | 1.25 | N | 0.5 | 1.3 | N | N | N | N |
APL1187 | SOT-223 | 2.9 | 9 | N | N | 5500 | N | 1.2 | 0.6 | 1.4 | N | N | N | N |
APL1087 | SOT-89 | 3.1 | 9 | N | N | 5500 | 1.25 | 1.8 | 0.8 | 1.3 | N | N | N | N |
APL1087R | SOT-89 | 3.1 | 9 | N | N | 5500 | 1.25 | 1.8 | 0.8 | 1.3 | N | N | N | N |
APL1117 | TO-220 | 2.75 | 12 | N | N | 5500 | 1.25 | 1.2 | 1 | 1.1 | N | N | N | N |
APL1117A | TO-252 | 2.75 | 12 | N | N | 5500 | 1.25 | 1.2 | 1 | 1.3 | N | N | N | N |
APL1117D/R | SOT-223 | 4.75 | 12 | N | N | 5500 | N | 3.3 | 1 | 1.2 | N | N | N | N |
APL1541 | SOP-8 | 2.75 | 12 | N | N | 5500 | 1.25 | 3.3 | 1 | 1.1 | N | N | N | N |
APL1086 | SOT-223 | 2.75 | 12 | N | N | 5500 | 1.25 | 1.8 | 1.5 | 1.3 | N | N | N | N |
APL1085 | TO-220 | 1.75 | 7 | N | N | 8000 | 1.25 | 3.3 | 3 | 1.3 | N | N | N | N |
APL1084 | TO-220 | 2.75 | 7 | N | N | 8000 | 1.25 | 3.3 | 5 | 1.3 | N | N | N | N |
APL5101/2 | SOT-23-5 | 2 | 6 | N | N | 4 | N | 1.2 ~ 3.5 | 0.15 | 0.2 | Y | N | N | N |
APL5151/2/3/4 | SOT-23-5 | 2.7 | 6 | N | N | 50 | N | 1.3 ~ 5.0 | 0.15 | 0.3 | Y | N | N | Y |
APL5158 | SOT-23-5 | 2.7 | 6 | N | N | 60 | N | 1.2 | 0.15 | 1.5 | Y | Y | N | N |
APL5301/2 | SOT-23-3 | 2.7 | 6 | N | N | 50 | N | 1.3 ~ 3.4 | 0.3 | 0.4 | Y | N | N | N |
APL5308/9 | SOT-23-3 | 2.7 | 6 | N | N | 60 | N | 1.5 ~ 4.5 | 0.3 | 0.4 | N | N | N | N |
APL5315 | SOT-23-5 | 2.8 | 6 | N | N | 135 | 0.8 | 1.2 | 0.3 | 0.23 | Y | N | N | N |
SOT-23-5 | 2.8 | 6 | N | N | 135 | N | 1.2 | 0.3 | 0.17 | Y | Y | N | N | |
APL5317 | SOT-23-5 | 2.8 | 6 | N | N | 135 | 0.8 | 1.2 | 0.3 | 0.23 | Y | N | N | N |
APL5320/1 | SOT-23 | 2.5 | 6 | N | N | 40 | N | 1.2~3.7 | 0.3 | 0.52 | Y | N | Y | Y |
APL5323/6 | SOT-23-5 | 3 | 6 | N | N | 135 | 1.25 | N | 0.3 | 0.5 | Y | N | N | N |
APL5324/5 | SOT-23-5 | 2.7 | 6 | N | N | 135 | 0.8 | N | 0.3 | 0.5 | Y | N | N | N |
APL5327 | SOT-23-5 | 3 | 6 | N | N | 135 | 1.2 | N | 0.3 | 0.5 | Y | N | N | N |
APL5505/6/7 | SOP-8 | 2.7 | 6 | N | N | 120 | N | 1.3~3.4 | 0.5 | 0.3 | Y | N | N | N |
APL5508R/9R | SOT-23-3 | 2.7 | 6 | N | N | 60 | N | 1.5~4.5 | 0.56 | 0.6 | N | N | N | N |
APL5601/2 | SOT-23-3 | 2.9 | 6 | N | N | 140 | N | 1.0~5.0 | 0.6 | 0.22 | N | N | N | N |
APL5603 | SOP-8 | 2.9 | 6 | N | N | 140 | N | 1.2 | 0.6 | 0.22 | N | N | N | N |
APL5605
| SOP-8 | 2.9 | 6 | N | N | 140 | 0 | N | 0.6 | 0.25 | Y | N | N | N |
APL5606 | SOP-8 | 4.5 | 6 | N | N | 140 | 0 | N | 0.6 | 0.25 | N | N | N | N |
APL5901/2 | SOT-89 | 2.7 | 6 | N | N | 50 | N | 1.3~3.4 | 0.9 | 0.21 | Y | N | Y | Y |
APL1565A | SOP-8 | 3 | 6 | N | N | 50 | N | 2.5 | 1 | 0.21 | N | N | Y | N |
APL5912 | SOP-8P | 1.1 | 3.3 | 3 | 6 | 1000 | 0.8 | N | 5 | 0.15 | Y | Y | N | N |
APL5913 | SOP-8P | 1.1 | 3.3 | 3 | 6 | 1000 | 0.8 | N | 4 | 0.17 | Y | Y | N | N |
APL5915 | SOP-8P | 1.1 | 3.5 | 3 | 6 | 1000 | 0.8 | N | 1.5 | 0.12 | Y | Y | N | N |
APL5910 | SOP-8 | 1.0 | 5.5 | 3 | 5.5 | 1000 | 0.8 | N | 1 | 0.12 | Y | Y | N | N |
APL5620 | TDFN3x3-10 | 1.2 | 5.5 | 3 | 5.5 | 1000 | 0.8 | N | 1 | 0.12 | Y | Y | N | N |
APL5920 | SOP-8P | 1.2 | 5.5 | 3 | 5.5 | 1000 | 0.8 | N | 2 | 0.24 | Y | Y | N | N |
APL5930 | SOP-8 | 1.2 | 3.65 | 3 | 5.5 | 1000 | 0.8 | N | 3 | 0.23 | Y | Y | N | N |
APL5932A/B/C/D | SOP-8 | 1.2 | 5.5 | 3 | 5.5 | 1000 | 0.8 | N | 3 | 0.23 | Y | Y | N | N |
APL5940 | SOP-8P | 1.2 | 3.65 | 3 | 5.5 | 1000 | 0.8 | N | 4 | 0.3 | Y | Y | N | N |
APL5950/A | SOP-8P | 1.0 | 5.25 | 3 | 5.5 | 1000 | 0.8 | N | 5 | 0.15 | Y | Y | N | N |
APL5330 | SOP-8P | 1.2 | 3.5 | 3 | 6 | 2000 | N | 0.8~3 | 2 | 0.47 | Y | N | N | N |
APL1581 | TO-220-5 | 2.05 | 5.5 | 2.75 | 5.5 | 8000 | 1.25 | 1.5 | 5 | 0.52 | N | N | Y | N |
APL1582 | TO-220-5 | 2.05 | 5.5 | 2.75 | 12 | 8000 | 1.25 | N | 3 | 0.45 | N | N | Y | N |

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