Product Details
The ADP2370/ADP2371 are high efficiency, low quiescent current, 800 mA buck (step-down) dc-to-dc converters in small 8-lead, 3 mm × 3 mm LFCSP (QFN) packages. The total solution requires only three tiny external components.
The buck regulator uses a proprietary high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. The need for an external rectifier is eliminated by using a high efficiency synchronous rectifier architecture.
To ensure the longest battery life in portable applications, the ADP2370/ADP2371 employ a power saving variable frequency mode that reduces the switching frequency under light load conditions. The ADP2370/ADP2371 operate from input voltages of 3.2 V to 15 V allowing the use of multiple alkaline/NiMH, lithium cells, or other standard power sources.
The ADP2370/ADP2371 offer multiple options for setting the operational frequency. The ADP2370/ADP2371 can be synchronized to a 600 kHz to 1.2 MHz external clock or it can be forced to operate at 600 kHz or 1.2 MHz via the FSEL pin. The ADP2370/ ADP2371 can be forced to operate in PWM mode (FPWM) when noise considerations are more important than efficiency.
A power-good output is available to indicate when the output voltage is below 92% of its nominal value.
The ADP2371 is identical to the ADP2370 except that the ADP2371 includes the addition of an integrated switched resistor, quick output discharge function (QOD) that automatically discharges the output when the device is disabled.
Both devices include an internal power switch and a synchronous rectifier for minimal external part count and high efficiency. The ADP2370/ADP2371 also include internal soft start and internal compensation for ease of use.
During a logic controlled shutdown, the input is disconnected from the output and the regulator draws less than 1.2 μA from the input source. Other key features include undervoltage lockout to prevent deep battery discharge and soft start to prevent input overcurrent at startup. Short-circuit protection and thermal overload protection circuits prevent damage under adverse conditions.
The ADP2370/ADP2371 each use one 0805 capacitor, one 1206 capacitor, and one 4 mm × 4 mm inductor. The total solution size is about 53 mm2 resulting in a very small footprint solution to meet a variety of portable applications.
APPLICATIONS
Buck Switching Regulator IC Positive Fixed 5V 1 Output 800mA 8-WFDFN Exposed Pad, CSP
High Voltage, 1.2 MHz/600 KHz, 800mA, Low Quiescent Current Buck Regulator
Buck Switching Regulator IC Positive Fixed 5V 1 Output 800mA 8-WFDFN Exposed Pad, CSP
Manufacturer: Analog Devices Inc.
Win Source Part Number: 1141246-ADP2370ACPZ-
Packaging: Reel - TR
Operating Temperature Range: -40°C ~ 85°C (TA)
Package: 8-WFDFN Exposed Pad, CSP
Mounting: SMD
Output Type: Fixed
Function: Step-Down
Topology: Buck
Frequency - Switching: 600kHz ~ 1.2MHz
Number of Outputs: 1
Output Configuration: Positive
Synchronous Rectifier: Yes
Output Current: 800mA
Family Name: ADP2370
Output Voltage: 5V
Categories: Integrated Circuits (ICs)
Manufacturer Homepage: www.analog.com
Manufacturer Package: 8-LFCSP-WD (3x3)
Input Voltage MIN: 3.2V
Voltage Input MAX: 15V
Alternative Parts (Cross-Reference): TS30111-M050QFNR-13;
Introduction Date: April 02, 2012
ECCN: EAR99
Country of Origin: Republic of Korea
Estimated EOL Date: 2028
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 61 pct.
Supply and Demand Status: Limited
Buck Switching Regulator IC Positive Fixed 5V 1 Output 800mA 8-WFDFN Exposed Pad, CSP
Buck Switching Regulator IC Positive Fixed 5V 1 Output 800mA 8-WFDFN Exposed Pad, CSP
Buck Switching Regulator IC Positive Fixed 5V 1 Output 800mA 8-WFDFN Exposed Pad, CSP
IC REG BUCK 5V 800MA 8LFCSP
Switching Voltage Regulators 1.2MHz/600kHz 800mA High VTG
IC REG BUCK 5V 800MA 8LFCSP
| Analog Devices, Inc. | Quarktwin Technology Ltd. | Rochester Electronics | Nova Technology(HK) Co.,Ltd | Win Source Electronics | DigiKey | Shenzhen Shengyu Electronics Technology Limited | VAST STOCK CO., LIMITED | Lingto Electronic Limited | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Voltage Regulators | 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 | ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7 | 1141246-ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7TR-ND | ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7 | ADP2370ACPZ-5.0-R7 |
| Product Name | High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ADP2370ACPZ-5.0-R7 | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | |
| Configuration / Function | Buck | Buck | Buck | ||||||
| Package Type | Other; LFCSP | Other; 8-WFDFN Exposed Pad, CSP | Other; LFCSP8 | Other; 8-WFDFN Exposed Pad, CSP | Other; 8-WFDFN Exposed Pad, CSP | Other; 8-WFDFN Exposed Pad, CSP | |||
| Life Cycle Stage | Production | Active | Active | ||||||
| IOUT | 0.8000 amps | 0.8000 amps | 0.8000 amps | 0.8000 amps | 0.8000 amps | 0.8000 amps | 0.8000 amps | 0.8000 amps | |
| VIN | 3.2 to 15 volts | 3.2 to 15 volts | 3.2 volts | 3.2 to 15 volts |
