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
