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Efficient and Tiny Power IC Products Extend Battery Life and Functionality >>
Reduce BOM Costs with DC-to-DC Boost Controller >>
Low Dropout Regulators Deliver Accuracy and Reliability >>
Thermal Management IC Simplifies Electronic System Designs >>
DC-to-DC Controller Delivers 14 V Input Range at a 40% Cost Saving >>
High Efficiency Step-Down DC-to-DC Converters >>
CPU Power Controllers Optimized for Next Generation Applications >>
High Efficiency Controller IC for Switch Mode Li-ion Battery Chargers >>
New Quad Channel Voltage Monitor/Sequencer for Communications Applications >>
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Precise Temperature Control Independent of the Microprocessor >>
Low Voltage, High Accuracy Microprocessor Supervisory Circuit >>
All prices in this bulletin are in USD in quantities greater than 1000 (unless otherwise noted), recommended lowest grade resale, FOB U.S.A.
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New DC-to-DC Controller Delivers a 14 V Input Range at a 40% Cost Saving
 he ADP1864 constant frequency, current-mode, step-down dc-to-dc controller offers a 40% cost saving over competing ICs. Thus, for designers who are looking to reduce the cost of their power supplies without sacrificing performance in 5 A distributed power systems, the ADP1864 is a cost efficient solution. The device's 14 V input range provides greater design flexibility, and it is well-suited for low cost, 12 V power supply wall bricks or systems requiring more than 10 V input voltages. On-board reference accuracy is 3× better than the closest competing devices, and its load line regulation of only 1 mV/A is 2× that of competing devices. Go to www.analog.com/ADP1864tool to start using our new online dc-to-dc converter tool.
• Reference voltage: ±1.25%, 0.8 V
• Programmable current limit
• Internal soft start
• Thermal overload protection
• Overvoltage protection
• Undervoltage lockout
• Shutdown current: 7 µA
• Temperature range: –40°C to +85°C
• Input range: 14 V
| Part Number |
Function |
VIN (V) |
VOUT (V) |
Max SW Current (A) |
IOUT (A) |
SWF (MHz) |
Price ($U.S.) |
ADP1821/
ADP1822 |
Step-down margining, tracking |
1 to 24 |
0.6 to 85% of VIN |
20 |
- |
0.3 to 0.6, or up to 1.2 |
1.50/1.80 |
| ADP1823 |
Dual step down |
3 to 20 |
0.6 to 85% of VIN |
20 |
- |
0.3, 0.6, or up to 1.2 |
2.1 |
| ADP1864 |
Step down |
3.15 to 14 |
Down to 0.8 |
5 |
- |
0.55 |
1.05 |
High Efficiency Step-Down DC-to-DC Converters with Internal Switches
he ADP2105/ADP2106/ADP2107 make up a product family of low quiescent current, synchronous, step-down dc-to-dc converters in a compact, 4 mm × 4 mm LFCSP package. At medium to high load currents, these devices use a currentmode, constant-frequency, pulse-width modulation (PWM) control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the ADP210 products use a power-saving pulse frequency modulation (PFM) control scheme under light load conditions that reduces switching frequency to save power.
For more information on ADI's complete portfolio of switching regulators, visit www.analog.com/regulators.
| Part Number |
Output Voltage (V) |
Output Current (A) |
Supply Current (µA) |
Frequency (MHz) |
Package |
Price ($U.S.) |
| ADP2105 |
1.2, 1.5, 1.8, 3.3 adjustable |
1 |
22 |
1.2 |
4 mm × 4 mm,
16-lead LFCSP |
1.95 |
| ADP2106 |
1.2, 1.5, 1.8, 3.3 adjustable |
1.5 |
22 |
1.2 |
4 mm × 4 mm,
16-lead LFCSP |
2.00 |
| ADP2107 |
1.2, 1.5, 1.8, 3.3 adjustable |
2 |
22 |
1.2 |
4 mm × 4 mm,
16-lead LFCSP |
2.05 |
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