Product Details
The ADP1878/ADP1879 are versatile current mode, synchronous step-down controllers. They provide superior transient response, optimal stability, and current-limit protection by using a constant on-time, pseudo fixed frequency with a programmable current limit, current control scheme. In addition, these devices offer optimum performance at low duty cycles by using a valley, current mode control architecture. This allows the ADP1878/ADP1879 to drive all N-channel power stages to regulate output voltages to as low as 0.6 V.
The ADP1879 is the power saving mode (PSM) version of the device and is capable of pulse skipping to maintain output regulation while achieving improved system efficiency at light loads (see the ADP1879 Power Saving Mode (PSM) section for more information).
Available in three frequency options (300 kHz, 600 kHz, and 1.0 MHz, plus the PSM option), the ADP1878/ADP1879 are well suited for a wide range of applications that require a single-input power supply range from 2.95 V to 20 V. Low voltage biasing is supplied via a 5 V internal low dropout regulator (LDO).
In addition, soft start, programmability is included to limit input in-rush current from the input supply during startup and to provide reverse current protection during precharged output conditions. The low-side current sense, current gain scheme and integration of a boost diode, along with the PSM/forced pulsewidth modulation (PWM) option, reduce the external part count and improve efficiency.
The ADP1878/ADP1879 operate over the −40°C to +125°C junction temperature range and are available in a 14-Lead LFCSP_WD package.
APPLICATIONS
Buck Regulator Positive Output Step-Down DC-DC Controller IC 14-LFCSP-WD (4x3)
Manufacturer: Analog Devices Inc.
Win Source Part Number: 173096-ADP1878ACPZ-0
Packaging: Reel - TR
Output Type: Transistor Driver
Topology: Buck
Frequency - Switching: 300kHz
Control Features: Enable, Power Good, Soft Start
Number of Outputs: 1
Synchronous Rectifier: Yes
Output Phases: 1
Duty Cycle (Max): 84%
Clock Sync: No
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 125°C (TJ)
Case / Package: 14-LFCSP-WD (4x3)
Purpose: Step-Down
Supply Voltage - Operating: 2.95 V to 20 V
Popularity: Medium
Fake Threat In the Open Market: 38 pct.
Supply and Demand Status: Limited
Buck Regulator Positive Output Step-Down - DC-DC Controller IC 14-LFCSP-WD (4x3)
IC REG CTRLR BUCK 14LFCSP
Switching Controllers Constant On-Time & Valley Crnt Mode
| Analog Devices, Inc. | DigiKey | Win Source Electronics | Nova Technology(HK) Co.,Ltd | Lingto Electronic Limited | VAST STOCK CO., LIMITED | |
|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | ADP1878ACPZ-0.3-R7 | ADP1878ACPZ-0.3-R7TR-ND | 173096-ADP1878ACPZ-0.3-R7 | ADP1878ACPZ-0.3-R7 | ADP1878ACPZ-0.3-R7 | ADP1878ACPZ-0.3-R7 |
| Product Name | Synchronous Buck Controller with Constant On-Time and Valley Current Mode | DC DC Switching Controllers | PMIC - PMIC - Voltage Regulators - DCDC Switching Controllers - ADP1878ACPZ-0.3-R7 | PMIC - Voltage Regulators - DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | Switching Controllers |
| Configuration / Function | Buck | Buck | Buck | Buck | ||
| Package Type | Other; LFCSP | Other; 14-WFDFN Exposed Pad, CSP | Other; 14-LFCSP-WD (4x3) | Other; 14-WFDFN Exposed Pad, CSP | ||
| Life Cycle Stage | Production | Maturity; Active | ||||
| IOUT | 30 amps | |||||
| VIN | 2.95 to 20 volts |
