Analog Devices, Inc. Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch ADP2139ACBZ-1.0-R7

Description
Product Details The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency. The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range. The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rect-ifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 μA (typical) from the input source. Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current over-shoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP). APPLICATIONS PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units
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Suppliers

Company
Product
Description
Supplier Links
Norwood, MA, USA
Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch
ADP2139ACBZ-1.0-R7
Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch ADP2139ACBZ-1.0-R7
Product Details The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency. The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range. The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rect-ifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 μA (typical) from the input source. Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current over-shoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP). APPLICATIONS PDAs and palmtop computers Wireless handsets Digital audio, portable media players Digital cameras, GPS navigation units

Product Details

The ADP2138 and ADP2139 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139 has the additional feature of an internal discharge switch. The total solution requires only three tiny external components. When the MODE pin is set high, the buck regulator operates in forced PWM mode, which provides low peak-to-peak ripple for power supply noise sensitive loads at the expense of light load efficiency. When the MODE pin is set low, the buck regulator automatically switches operating modes, depending on the load current level. At higher output loads, the buck regulator operates in PWM mode. When the load current falls below a predefined threshold, the regulator operates in power save mode (PSM), improving light load efficiency.
The ADP2138/ADP2139 operate on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 800 mA is achievable across the input voltage range.
The ADP2138/ADP2139 are available in fixed output voltages of 3.3 V, 3.0 V, 2.8 V, 2.5 V, 1.8 V, 1.5 V, 1.2 V, 1.0 V, and 0.8 V. All versions include an internal power switch and synchronous rect-ifier for minimal external part count and high efficiency. The ADP2138/ADP2139 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139 draw 0.2 μA (typical) from the input source.
Other key features include undervoltage lockout to prevent deep battery discharge, and soft start to prevent input current over-shoot at startup. The ADP2138/ADP2139 are available in a 6-ball wafer level chip scale package (WLCSP). APPLICATIONS

  • PDAs and palmtop computers
  • Wireless handsets
  • Digital audio, portable media players
  • Digital cameras, GPS navigation units
Supplier's Site Datasheet
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators - ADP2139ACBZ-1.0-R7 - Shenzhen Shengyu Electronics Technology Limited
Futian, China
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
ADP2139ACBZ-1.0-R7
Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators ADP2139ACBZ-1.0-R7
IC REG BUCK 1V 800MA 6WLCSP

IC REG BUCK 1V 800MA 6WLCSP

Supplier's Site
Voltage Regulators - DC DC Switching Regulators - ADP2139ACBZ-1.0-R7 - Quarktwin Technology Ltd.
Shenzhen, Guangdong, China
Voltage Regulators - DC DC Switching Regulators
ADP2139ACBZ-1.0-R7
Voltage Regulators - DC DC Switching Regulators ADP2139ACBZ-1.0-R7
Buck Switching Regulator IC Positive Fixed 1V 1 Output 800mA 6-UFBGA, WLCSP

Buck Switching Regulator IC Positive Fixed 1V 1 Output 800mA 6-UFBGA, WLCSP

Supplier's Site Datasheet
Sheung Wan, Hong Kong
Switching Voltage Regulators
ADP2139ACBZ-1.0-R7
Switching Voltage Regulators ADP2139ACBZ-1.0-R7
Switching Voltage Regulators Compact 800mA 3MHz Step-Down

Switching Voltage Regulators Compact 800mA 3MHz Step-Down

Supplier's Site Datasheet
PMIC - Voltage Regulators - DC DC Switching Regulators - ADP2139ACBZ-1.0-R7 - Lingto Electronic Limited
Shenzhen, China
PMIC - Voltage Regulators - DC DC Switching Regulators
ADP2139ACBZ-1.0-R7
PMIC - Voltage Regulators - DC DC Switching Regulators ADP2139ACBZ-1.0-R7
IC REG BUCK 1V 800MA 6WLCSP

IC REG BUCK 1V 800MA 6WLCSP

Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
505-ADP2139ACBZ-1.0-R7CT-ND
Voltage Regulators - DC DC Switching Regulators 505-ADP2139ACBZ-1.0-R7CT-ND
IC REG BUCK 1V 800MA 6WLCSP

IC REG BUCK 1V 800MA 6WLCSP

Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
505-ADP2139ACBZ-1.0-R7TR-ND
Voltage Regulators - DC DC Switching Regulators 505-ADP2139ACBZ-1.0-R7TR-ND
IC REG BUCK 1V 800MA 6WLCSP

IC REG BUCK 1V 800MA 6WLCSP

Supplier's Site Datasheet
Thief River Falls, MN, United States
Voltage Regulators - DC DC Switching Regulators
505-ADP2139ACBZ-1.0-R7DKR-ND
Voltage Regulators - DC DC Switching Regulators 505-ADP2139ACBZ-1.0-R7DKR-ND
IC REG BUCK 1V 800MA 6WLCSP

IC REG BUCK 1V 800MA 6WLCSP

Supplier's Site Datasheet

Technical Specifications

  Analog Devices, Inc. Shenzhen Shengyu Electronics Technology Limited Quarktwin Technology Ltd. VAST STOCK CO., LIMITED Lingto Electronic Limited DigiKey
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 ADP2139ACBZ-1.0-R7 ADP2139ACBZ-1.0-R7 ADP2139ACBZ-1.0-R7 ADP2139ACBZ-1.0-R7 ADP2139ACBZ-1.0-R7 505-ADP2139ACBZ-1.0-R7CT-ND
Product Name Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators 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; WLCSP Other; 6-UFBGA, WLCSP Other; 6-UFBGA, WLCSP
Life Cycle Stage Production Active Active
IOUT 0.8000 amps 0.8000 amps 0.8000 amps 0.8000 amps 0.8000 amps
VIN 2.3 to 5.5 volts 2.3 to 5.5 volts 2.3 to 5.5 volts
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