MFG:MAXIM Package Cooled:UCSP D/C:8
MFG: MAXIM
Package Cooled: UCSP
D/C: 8
Description: The MAX1820 low-dropout, pulse-width-modulated (PWM) DC-DC buck regulator is optimized to provide powe...
The MAX1820 low-dropout, pulse-width-modulated (PWM) DC-DC buck regulator is optimized to provide power to the power amplifier (PA) in WCDMA cell phones; however, it may be applied in many other applications where high efficiency is a priority. The supply voltage range is from 2.6V to 5.5V, and the guaranteed output current is 600mA; 1MHz PWM switching allows for small external components, while skip mode reduces quiescent current to 180A with light loads.
The MAX1820 is dynamically controlled to provide varying output voltages from 0.4V to 3.4V. The circuit is designed such that the output voltage settles in <30s for a full-scale change in voltage and current.
The MAX1820 includes a low on-resistance internal MOSFET switch and synchronous rectifier to maximize efficiency and minimize external component count; 100% duty-cycle operation allows for low dropout of only 150mV at 600mA load, including the external inductor resistance. The device is offered in 10-pin MAX and tiny 3 x 4 chipscale (UCSP™) packages
| Item | Rating |
| BATT, OUT (FB), SHDN, SYNC, SKIP, REF to GND | -0.3V to +6.0V |
| PGND to GND | -0.3V to+ 0.3V |
| LX, COMP to GND | -0.3V to (VBATT + 0.3V) |
| Output Short-Circuit Duration | Infinite |
| Operating Temperature Range | -40 to +85 |
| Junction Temperature | +150 |
| Storage Temperature Ranges | -65 to +150 |
| Lead Temperature (soldering, 10s) | +300 |
| Continuous Power Dissipation (TA = +70) 10-Pin MAX |
444mW |
| Derates above +70 10-Pin MAX | 5.6mW/ |
MAX1820ZEUB
PDF/DataSheet Download
IC REG BUCK WCDMA 10-MSOP
IC REG BUCK WCDMA 10-MSOP
The MAX1820EVKIT is a fully assembled and tested surface-mount circuit board that contains two separate buck switching-regulator circuits.The top circuit utilizes a MAX1820 and is configured for a +0.4V to +3.4V dynamically variable output voltage and provid...
The MAX1820 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that contains two separate buck switching-regulator circuits. The top circuit utilizes a MAX1820 and is configured for a +0.4V to +3.4V dynamically variable outpu...
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