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82,182 pcs
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82182 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LM3243TMX from Texas Instruments is a high-current step-down DC-DC converter optimized for powering multi-mode 2G, 3G, and 4G RF power amplifiers. It features high-efficiency PFM and PWM modes with internal synchronous rectification.
The converter supports a wide input voltage range of 2.7 V to 5.5 V, making it suitable for single Li-ion cell applications. The output voltage is dynamically adjustable from 0.4 V to 3.6 V. It can deliver a maximum load current of 2.5 A in PWM mode and operates with a PWM switching frequency of 2.7 MHz (average).
Key features include an analog bypass function with low dropout resistance and modulated switching frequency to aid Rx band compliance. The device also incorporates current and thermal overload protection. Its design reduces inductor requirements and size, contributing to a minimum total solution size.
The LM3243TMX is available in a compact DSBGA (YFQ) package, measuring 3.24 mm², suitable for space-constrained applications. It operates within a temperature range of -30°C to 90°C.
| Qty | Low | High |
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| 1+ | $1.08 | $1.08 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2.7 V to 5.5 V.
The maximum load current is 2.5 A in PWM Mode.
The output voltage can be dynamically adjusted from 0.4 V to 3.6 V.
The PWM switching frequency is 2.7 MHz on average.
The operating temperature range is -30°C to 90°C.
The LM3243TMX is supplied in a DSBGA (YFQ) package with a size of 3.24 mm².