ADP2139CB-3.3EVALZ datasheet
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ADP2139CB-3.3EVALZ Analog Devices Inc.
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
View All Product from Analog Devices Inc.The ADP2138 and ADP2139ACBZ-3.3-R7 are high efficiency, low quiescent current, synchronous step-down dc-to-dc converters. The ADP2139ACBZ-3.3-R7 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/ADP2139ACBZ-3.3-R7 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/ADP2139ACBZ-3.3-R7 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 rectifier for minimal external part count and high efficiency. The ADP2138/ADP2139ACBZ-3.3-R7 have internal soft start and they are internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2138/ADP2139ACBZ-3.3-R7 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 overshoot at startup. The ADP2138/ADP2139ACBZ-3.3-R7 are available in a 6-ball wafer level chip scale package (WLCSP).
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Mfr Part # | Price ($) | Quantity Available | |
---|---|---|---|
ADP2119ACPZ-2.5-R7IC REG BUCK 2.5V 2A 10LFCSP | 2.20 |
63
Marketplace | |
ADP2120ACPZ-R7IC REG BUCK ADJ 1.25A 10LFCSP | 2.07 |
50000
Marketplace | |
ADP2118ACPZ-R7IC REG BUCK ADJ 3A 16LFCSP | 0.69 |
10000
Marketplace | |
ADP2119ACPZ-R7IC REG BUCK ADJ 2A 10LFCSP | 1.65 |
3544
Marketplace |
TYPE | DESCRIPTION | Select all |
---|---|---|
Package | Box | |
Utilized IC / Part | ADP2139 | |
Product Status | Active | |
Main Purpose | DC/DC, Step Down | |
Outputs and Type | 1, Non-Isolated | |
Voltage - Output | 3.3V | |
Current - Output | 800mA | |
Voltage - Input | 2.3V ~ 5.5V | |
Regulator Topology | Buck | |
Frequency - Switching | 3MHz | |
Board Type | Fully Populated | |
Supplied Contents | Board(s) |
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
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