Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz), the ADP1872/ADP1873ARMZ-0.3-R7 are well suited for a wide range of applications. These ICs not only operate from a 2.75 V to 5.5 V bias supply, but also can accept a power input as high as 20 V.
In addition, an internally fixed soft start period is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during soft start for a pre¬charged output. The low-side current-sense, current-gain scheme, along with the PSM/forced pulse-width modulation (PWM) option, reduces the external part count and improves efficiency.The ADP1872/ADP1873ARMZ-0.3-R7 operate over the –40°C to +125°C junction temperature range and are available in a 10-lead MSOP.
ApplicationsFeature
- Power input voltage as low as 2.75 V to 20 V
- Bias supply voltage range:2.75 V to 5.5 V
- Minimum output voltage: 0.6 V
- 0.6 V reference voltage with ±1.0% accuracy
- Supports all N-channel MOSFET power stages
- Available in 300 kHz, 600 KHz, and 1.0 MHz options
- No current-sense resistor required
- Power saving mode (PSM) for light loads (ADP1873 only)
- Resistor Programmable Current Sense Gain
- Thermal overload protection
- Short-circuit protection
- See data sheet for additional features
Applications
- Telecom and networking systems
- Mid to High End servers
- Set-top boxes
- DSP core power supplies
(Picture: Pinout)
