Analog Devices, Inc. High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator ADP2370ACPZ-1.8-R7

Description
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 Portable and battery-powered equipment Automatic meter readers (WSN) Point of sales and transaction processing instruments Medical instruments Medium format display tablets and pads
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator
ADP2370ACPZ-1.8-R7
High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator ADP2370ACPZ-1.8-R7
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 Portable and battery-powered equipment Automatic meter readers (WSN) Point of sales and transaction processing instruments Medical instruments Medium format display tablets and pads

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

  • Portable and battery-powered equipment
  • Automatic meter readers (WSN)
  • Point of sales and transaction processing instruments
  • Medical instruments
  • Medium format display tablets and pads
Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7TR-ND
Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7TR-ND
IC REG BUCK 1.8V 800MA 8LFCSP

IC REG BUCK 1.8V 800MA 8LFCSP

Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7CT-ND
Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7CT-ND
IC REG BUCK 1.8V 800MA 8LFCSP

IC REG BUCK 1.8V 800MA 8LFCSP

Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7DKR-ND
Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7DKR-ND
IC REG BUCK 1.8V 800MA 8LFCSP

IC REG BUCK 1.8V 800MA 8LFCSP

Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - ADP2370ACPZ-1.8-R7 - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7
IC REG BUCK 1.8V 800MA 8LFCSP

IC REG BUCK 1.8V 800MA 8LFCSP

Supplier's Site
Sheung Wan, Hong Kong
Switching Voltage Regulators
ADP2370ACPZ-1.8-R7
Switching Voltage Regulators ADP2370ACPZ-1.8-R7
Switching Voltage Regulators 1.2MHz/600kHz 800mA High VTG

Switching Voltage Regulators 1.2MHz/600kHz 800mA High VTG

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - ADP2370ACPZ-1.8-R7 - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7
PMIC - Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7
IC REG BUCK 1.8V 800MA 8LFCSP

IC REG BUCK 1.8V 800MA 8LFCSP

Supplier's Site Datasheet
 - ADP2370ACPZ-1.8-R7 - Rochester Electronics
Newburyport, MA, United States
ADP2370 - High Voltage, 1.2 MHz/600 KHz, 800mA, Low Quiescent Current Buck Regulator

ADP2370 - High Voltage, 1.2 MHz/600 KHz, 800mA, Low Quiescent Current Buck Regulator

Supplier's Site Datasheet
Voltage Regulators - DC DC Switching Regulators - ADP2370ACPZ-1.8-R7 - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
ADP2370ACPZ-1.8-R7
Voltage Regulators - DC DC Switching Regulators ADP2370ACPZ-1.8-R7
Buck Switching Regulator IC Positive Fixed 1.8V 1 Output 800mA 8-WFDFN Exposed Pad, CSP

Buck Switching Regulator IC Positive Fixed 1.8V 1 Output 800mA 8-WFDFN Exposed Pad, CSP

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. DigiKey Shenzhen Shengyu Electronics Technology Limited VAST STOCK CO., LIMITED Lingto Electronic Limited Rochester Electronics Quarktwin Technology Ltd.
Product Category IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Switching Voltage Regulators IC Voltage Regulators IC Switching Voltage Regulators
Product Number ADP2370ACPZ-1.8-R7 ADP2370ACPZ-1.8-R7TR-ND ADP2370ACPZ-1.8-R7 ADP2370ACPZ-1.8-R7 ADP2370ACPZ-1.8-R7 ADP2370ACPZ-1.8-R7 ADP2370ACPZ-1.8-R7
Product Name High Voltage, 1.2 MHz/600 kHz, 800 mA, Low Quiescent Current Buck Regulator 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 Voltage Regulators - DC DC Switching Regulators
Configuration / Function Buck Buck
Package Type Other; LFCSP Other; 8-WFDFN Exposed Pad, CSP Other; LFCSP8 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
VIN 3.2 to 15 volts 3.2 to 15 volts 3.2 to 15 volts
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