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
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA 6-UFBGA, WLCSP
IC REG BUCK 3.3V 800MA 6WLCSP
Win Source Part Number: 1352712-ADP2139ACBZ-
Category: Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators
Temperature Range - Operating: -40°C ~ 85°C (TA)
Fake Threat In the Open Market: 50 pct.
MSL Level: 1 (Unlimited)
Mfr: Analog Devices Inc.
Package: Tape & Reel
Product Status: Active
Package / Case: 6-UFBGA, WLCSP
Supplier Device Package: 6-WLCSP (1.03x1.50)
Base Product Number: ADP2139
Mounting Type: Surface Mount
HTSUS: 8542.39.0001
REACH Status: REACH Unaffected
ECCN: EAR99
Function: Step-Down
Output Type: Fixed
Output Configuration: Positive
Voltage - Input (Max): 5.5V
Voltage - Output (Min/Fixed): 3.3V
Current - Output: 800mA
Topology: Buck
Number of Outputs: 1
Voltage - Input (Min): 2.3V
Frequency - Switching: 3MHz
Synchronous Rectifier: Yes
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA 6-UFBGA, WLCSP
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA 6-UFBGA, WLCSP
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 800mA 6-UFBGA, WLCSP
Switching Voltage Regulators Compact 800mA 3MHz Step-Down
IC REG BUCK 3.3V 800MA 6WLCSP
| Analog Devices, Inc. | Quarktwin Technology Ltd. | Shenzhen Shengyu Electronics Technology Limited | Win Source Electronics | DigiKey | VAST STOCK CO., LIMITED | Lingto Electronic 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 | IC Switching Voltage Regulators |
| Product Number | ADP2139ACBZ-3.3-R7 | ADP2139ACBZ-3.3-R7 | ADP2139ACBZ-3.3-R7 | 1352712-ADP2139ACBZ-3.3-R7 | 505-ADP2139ACBZ-3.3-R7TR-ND | ADP2139ACBZ-3.3-R7 | ADP2139ACBZ-3.3-R7 |
| Product Name | Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter with an Internal Discharge Switch | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | 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 |
| Configuration / Function | Buck | Buck | Buck | ||||
| Package Type | Other; WLCSP | Other; 6-UFBGA, WLCSP | Other; Tape & Reel | 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 |
