MAX17126B Electronics IC Chips Integrated Circuits IC Component
High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs
Features
♦ Ultra-High Efficiency
♦ No Current-Sense Resistor (Lossless ILIMIT)
♦ Quick-PWM with 100ns Load-Step Response
♦ ±1% VOUT Accuracy over Line and Load
♦ 4-Bit On-Board DAC (MAX1710)
♦ 5-Bit On-Board DAC (MAX1711/MAX1712)
♦ 0.925V to 2V Output Adjust Range (MAX1711/MAX1712)
♦ 2V to 28V Battery Input Range
♦ 200/300/400/550kHz Switching Frequency
♦ Remote GND and VOUT Sensing
♦ Over/Undervoltage Protection
♦ 1.7ms Digital Soft-Start
♦ Drive Large Synchronous-Rectifier FETs
♦ 2V ±1% Reference Output
♦ Power-Good Indicator
♦ Small 24-Pin QSOP Package
Applications
• Portable Equipment
• A/D Converter Driver
• Photo Diode Pre-amp
• Analog Filters
• Data Acquisition
• Notebooks and PDAs
• Sensor Interface
MAXIMUM RATINGS (Voltages Referenced to VSS)
| Symbol |
Parameter |
Value |
Unit |
|
Vdd
|
DC Supply Voltage Range |
-0.5 to +18.0 |
V |
| Vin Vout |
Input or Output Voltage Range (DC or Transient) |
-0.5 to Vdd+0.5 |
V |
| Iin Iout |
Input or Output Current (DC or Transient) Per Pin |
+-10 |
mA |
|
PD
|
Power Dissipation, Per Package |
500 |
mW |
| TA |
Ambient Temperature Range |
-55 to +125 |
°C |
| Tstg |
Storage Temperature Range |
-65 to +150 |
°C |
| TL |
Lead Temperture |
260 |
°C |
ABSOLUTE MAXIMUM RATINGS
V+ to GND..............................................................-0.3V to +30V
VCC, VDD to GND .....................................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
SHDN, PGOOD to GND ...........................................-0.3V to +6V
OVP, ILIM, FB, FBS, CC, REF, D0–D4, GNDS, TON to GND..............................-0.3V to (VCC + 0.3V)
SKIP to GND (Note 1).................................-0.3V to (VCC + 0.3V)
DL to PGND................................................-0.3V to (VDD + 0.3V)
BST to GND............................................................-0.3V to +36V
DH to LX .....................................................-0.3V to (BST + 0.3V)
LX to BST..................................................................-6V to +0.3V
REF Short Circuit to GND...........................................Continuous Continuous Power Dissipation
(T A = +70°C) 24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
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