Mfr. #:
LM27403SQ/NOPB
Description:
Switching Controllers High Perf Sync Buck Controller
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New from this manufacturer.
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LM27403SQ/NOPB Information

LM27403 Synchronous Buck Controller
Texas Instruments LM27403 synchronous buck controller offers exceptional levels of integration and performance for superior efficiency in high power density, point-of-load (POL) DC-DC regulator solutions. The resistor-programmable switching frequency from 200 kHz to 1.2 MHz and integrated, high-current MOSFET gate drivers with adaptive deadtime offer flexibility to optimize solution size and maximize conversion efficiency. High precision and low output voltage are easily obtained with a 0.6-V, 1% accurate voltage reference together with a 30-ns high-side MOSFET minimum controllable on-time. Using lossless inductor dc resistance (DCR) current sensing and an inexpensive 2N3904 BJT to sense temperature remotely at the inductor, the LM27403 supports accurate and thermally-compensated overcurrent protection (OCP). The LM27403 has a conventional voltage-mode control loop with high gain-bandwidth error amplifier and PWM input voltage feedforward to simplify compensation design and enable excellent transient response throughout the full line voltage and load current ranges. Forced-PWM (FPWM) operation eliminates frequency variation to minimize EMI in sensitive applications. An open-drain Power Good circuit provides power-rail sequencing and fault reporting. Other features include programmable system-level thermal shutdown with automatic recovery, output voltage remote sense, configurable soft-start, monotonic startup into prebiased loads, an integrated bias supply low-dropout (LDO) regulator, external power supply tracking, precision enable with customizable hysteresis for programmable line undervoltage lockout (UVLO), and synchronization capability for beat frequency sensitive and multiregulator applications. The LM27403 is offered in a 4-mm x 4-mm thermally-enhanced WQFN-24 package with 0.5-mm pitch.Learn More

Specifications

RoHS: Y
Package / Case: WQFN-24
Product: Voltage Controllers
Manufacturer: Texas Instruments
Brand: Texas Instruments
Description/Function: Synchronous buck controller offering exceptional levels of integration and performance for superior efficiency in high power density, point-of-load DC-DC regulator solutions
Type: Synchronous Buck Controller
Product Category: Switching Controllers
Product Type: Switching Controllers
Shutdown: Shutdown
Mounting Style: SMD/SMT
Packaging: Reel
Subcategory: PMIC - Power Management ICs
Development Kit: LM27403EVM
Series: LM27403
Output Type: Fixed
Topology: Buck
Duty Cycle - Max: 93 %
Output Voltage: 4.7 V
Operating Supply Current: 3.5 mA
Operating Supply Voltage: 3 V to 20 V
Rise Time: 20 us
Fall Time: 20 us
Input Voltage: 20 V
Switching Frequency: 1050 kHz
Factory Pack Quantity: 1000
Number of Outputs: 1 Output
Unit Weight: 0.001411 oz
Operating Temperature Range: - 40 C to + 125 C
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 125 C

LM27403SQ/NOPB Price & Stock

Texas Instruments LM27403SQ/NOPB pricing and available inventory.

SellerSKUStock 1 10 100 1000 10000 Updated
Digi-Key 3296-37015-1-ND5,84519.7817.7713.4111.4011.402019-12-23T15:38:40Z
Digi-Key296-37015-6-ND5,84519.7817.7713.4111.4011.402019-12-23T15:38:40Z
Digi-Key296-37015-2-ND5,000---8.798.142019-12-23T15:38:40Z
Texas InstrumentsLM27403SQ/NOPB15,59717.5215.7312.697.407.402019-12-24T02:03:22Z
Mouser595-LM27403SQ/NOPB2,34719.1616.2813.019.428.182019-12-18T08:26:38Z
Arrow Electronics 2LM27403SQ/NOPB6,000---8.477.892019-12-23T16:07:31Z
Arrow ElectronicsLM27403SQ/NOPB8517.6615.2915.1315.1315.132019-12-18T08:26:38Z
Verical 2LM27403SQ/NOPB10,000---9.358.572019-12-23T17:46:21Z
VericalLM27403SQ/NOPB85-15.5814.8014.8014.802019-12-23T17:46:21Z
AvnetLM27403SQ/NOPB----9.718.392019-12-24T03:33:56Z
Avnet EuropeLM27403SQ/NOPB----13.3510.422019-12-24T08:04:15Z
Semi SourceLM27403SQ/NOPB100-----2019-12-18T20:43:51Z
SourceabilityLM27403SQ/NOPB1,510-----2019-12-18T20:43:39Z
LTL Group4914625188-----2019-12-23T01:29:13Z
Sierra ICLM27403SQ/NOPBContact-----2019-12-16T00:48:56Z

AD5242BRUZ1M distributor

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