Features: 5.5V max supply input
Fixed output voltage: 1.1V-4.2V with 100 mV ncrement
1Aoutput current
Integrated low on resistance power switches
Synchronous rectification
UP to 95% efficiency
Power Good signal
Internally compensated current mode control
High initial accuracy: ±1
850kHz switching frequency
Constant PWM mode
Low output ripple with light load
Internal softstart
Current limit protection
Over-Temperature protection
MSOP-8 packageApplicationComputer Peripherals
Set Top Boxes
Network Cards
Cable/DSLModems
High efficiency conversion from 5V or 3.3V
supplyPinout
Specifications
- 5.5V max supply input
- Fixed or adjustable output voltage: 1.0V?.2V with 100 mV increment
- 1A output current
- Integrated low on-resistance power switches
- Up to 95% efficiency
- Power Good signal
- Internally compensated current mode control
- High initial accuracy: 1%
- 850kHz switching frequency
- Constant PWM mode
- Low output ripple with light load
- Internal soft start
- Current limit protection
- Over-temperature protection
- MSOP-8 package
| Symbol |
Description
|
Value |
Units |
|
VCC , VP
|
VCC , VP to GND |
6 |
V |
VLX
|
LX to GND |
-0.3 to VP +0.3 |
V |
VFB
|
FB to GND |
-0.3 to V CC+0.3 |
V |
VEN , VPOK
|
POK, EN to GND |
-0.3 to 6 |
V |
TJ
|
Operating Junction Temperature Range |
-40 to 150 |
°C |
| TLEAD |
Maximum Soldering Temperature (at leads, 10 sec) |
300 |
°C |
| VESD |
ESDRating1 - HBM |
3000 |
V |
Descriptionspan id="lblDescription">
The AAT1152 SwitchReg is a member of AnalogicTech Total Power Management IC product family. The step-down switching converter is ideal for applications where high efficiency, small size, and low ripple are critical. Able to deliver 1A with internal Power MOSFETs, the current-mode controlled IC provides high efficiency over a wide operating range. Fully internally compensated, the AAT1152 simplifies system design and lowers external part count. The AAT1152 features a Power Good (POK) function which monitors output, alerting the system if the output voltage falls out of regulation. The AAT1152 is available in an MSOP-8 package, rated over the -40 to +85C temperature range.
The AAT1152 SwitchReg™ is a member of AnalogicTech product family. The Step-down switching converter is ideal for applications where high efficiency, small size, and low ripple are critical. Able to deliver 1A with internal Power MOSFETs, the current-mode controlled IC provides high efficiency using syn- chronous rectification. Fully internally compensat- ed, the AAT1152 simplifies system design and low- ers external part count.
The AAT1152 features a Power Good (POK) func-tion which monitors the output, alerting the system if the output voltage falls out of regulation. The AAT1152 is available in MSOP-8 package, rated over -40 to 85°C.
AAT1152 Data Sheet
