The AP2953A is a monolithic synchronous buck regulator. The device integrates 100mΩ MOSFETS that provide 3A continuous load current over a wide operating input voltage of 4.75V to 18V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn-on. In shutdown mode, the supp.
3A Output Current
Wide 4.75V to 18V Operating Input Range
Integrated 100mΩ Power MOSFET Switches
Output Adjustable from 0.925V to 15V
Up to 95% Efficiency
Programmable Soft-Start
Stable with Low ESR Ceramic Output Capacitors
Fixed 370KHz Frequency
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
Thermally Enhanced 8-Pin SOP Package
Package
SOP8-PP
2 3 4
8 7 6 5
Typical Application Circuit
Figure 1. Typical Application Circuit
Efficy(%)
100 90 80 70 60 50 40 30 20 10 0 0
Vout=5V
Vin=12V Vin=18V Vin=9V
500 1000 1500 2000 2500 3000 3500 Load(mA)
Figu.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | AP2953 |
Chipown |
Synchronous Step-Down Regulator | |
2 | AP2952 |
Chipown |
18V Synchronous Rectified Step-Down Converter | |
3 | AP2952A |
Chipown |
18V Synchronous Rectified Step-Down Converter | |
4 | AP2900EC4 |
Advanced Power Electronics |
DUAL N-CHANNEL ENHANCEMENT MODE POWER MOSFET | |
5 | AP2904EC4 |
Advanced Power Electronics |
DUAL N-CHANNEL ENHANCEMENT MODE POWER MOSFET | |
6 | AP2906EY |
Advanced Power Electronics |
N-CHANNEL ENHANCEMENT MODE POWER MOSFET | |
7 | AP2919 |
apx |
TRANSFORMERS | |
8 | AP2960 |
Chipown |
30V 3.0A Synchronous CV/CC Step-Down Converter | |
9 | AP2961A |
Chipown |
42V 3A CC/CV Step-Down DC/DC Converter | |
10 | AP200-B10 |
LEM |
AC Current transducer AP-B10 | |
11 | AP200-B420L |
LEM |
AC Current transducer AP-B420L | |
12 | AP2000 |
Chipown |
Micropower Synchronous Step-Up Converter |