LM3686TL-AADWEV datasheet
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LM3686TL-AADWEV Texas Instruments
Texas Instruments
Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.
View All Product from Texas InstrumentsThe LM3686TL-AADWEV is a step-down DC-DC converter with a very low-dropout linear regulator and a low-noise linear regulator optimized for powering ultra-low voltage circuits. It provides three outputs with combined load current up to 900 mA over an input voltage range from 2.7 V to 5.5 V.
The device offers superior features and performance for many applications. Automatic intelligent switching between PWM low-noise and PFM low-current mode offers improved system control. During full-power operation, a fixed-frequency 3 MHz (typical), PWM mode drives loads from approximately 70 mA to 600 mA maximum. Hysteretic PFM mode extends the battery life through reduction of the quiescent current to 28 μA (typical) at light load and system standby. Internal synchronous rectification provides high efficiency.
For all available packages, see the orderable addendum at the end of the data sheet.All trademarks are the property of their respective owners.
Three enable (EN_x) pins allow the separate operation of either the DC-DC, post-regulation linear regulator, or the linear regulator alone. If the DC-DC is not enabled during start-up of the post-regulation linear regulator, a parallel small-pass transistor supplies the linear regulator from VBATT with maximal 50 mA. In the combined operation where both enables are raised together, the small-pass transistor is deactivated and the big pass transistor provides 350 mA output current. In shutdown mode (EN_x pins pulled low), the device turns off and reduces battery consumption to 2.5 μA (typical).
The LM3686TL-AADWEV is available in a 12-pin DSBGA package. A high-switching frequency of 3 MHz (typical) allows the use of a few tiny surface-mount components. Only six external surface-mount components, an inductor and five ceramic capacitors, are required to establish a 15.66 mm2 total solution size.
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TYPE | DESCRIPTION | Select all |
---|---|---|
Package | Box | |
Utilized IC / Part | LM3686 | |
Product Status | Obsolete | |
Main Purpose | DC/DC, Step Down with LDO | |
Outputs and Type | 3, Non-Isolated | |
Voltage - Output | 1.2V, 2.8V, 1.8V | |
Current - Output | 350mA, 300mA, 250mA | |
Voltage - Input | 2.7V ~ 5.5V | |
Regulator Topology | Buck | |
Frequency - Switching | 3MHz | |
Board Type | Fully Populated | |
Supplied Contents | Board(s) |
Texas Instruments
Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.
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