- Mfr. #:
- LM27403SQ/NOPB
- Description:
- Switching Controllers High Perf Sync Buck Controller
- Lifecycle:
- New from this manufacturer.
- Delivery
- DHL / FedEx / Ups / TNT / EMS
- Payment
- T/T / Paypal / Visa / MoneyGram / Western / Union
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.
Seller | SKU | Stock | 1 | 10 | 100 | 1000 | 10000 | Updated |
---|---|---|---|---|---|---|---|---|
Digi-Key | 296-37015-1-ND | 5,845 | 19.78 | 17.77 | 13.41 | 11.40 | 11.40 | 2019-12-23T15:38:40Z |
Digi-Key | 296-37015-6-ND | 5,845 | 19.78 | 17.77 | 13.41 | 11.40 | 11.40 | 2019-12-23T15:38:40Z |
Digi-Key | 296-37015-2-ND | 5,000 | - | - | - | 8.79 | 8.14 | 2019-12-23T15:38:40Z |
Texas Instruments | LM27403SQ/NOPB | 15,597 | 17.52 | 15.73 | 12.69 | 7.40 | 7.40 | 2019-12-24T02:03:22Z |
Mouser | 595-LM27403SQ/NOPB | 2,347 | 19.16 | 16.28 | 13.01 | 9.42 | 8.18 | 2019-12-18T08:26:38Z |
Arrow Electronics | LM27403SQ/NOPB | 6,000 | - | - | - | 8.47 | 7.89 | 2019-12-23T16:07:31Z |
Arrow Electronics | LM27403SQ/NOPB | 85 | 17.66 | 15.29 | 15.13 | 15.13 | 15.13 | 2019-12-18T08:26:38Z |
Verical | LM27403SQ/NOPB | 10,000 | - | - | - | 9.35 | 8.57 | 2019-12-23T17:46:21Z |
Verical | LM27403SQ/NOPB | 85 | - | 15.58 | 14.80 | 14.80 | 14.80 | 2019-12-23T17:46:21Z |
Avnet | LM27403SQ/NOPB | - | - | - | - | 9.71 | 8.39 | 2019-12-24T03:33:56Z |
Avnet Europe | LM27403SQ/NOPB | - | - | - | - | 13.35 | 10.42 | 2019-12-24T08:04:15Z |
Semi Source | LM27403SQ/NOPB | 100 | - | - | - | - | - | 2019-12-18T20:43:51Z |
Sourceability | LM27403SQ/NOPB | 1,510 | - | - | - | - | - | 2019-12-18T20:43:39Z |
LTL Group | 4914625 | 188 | - | - | - | - | - | 2019-12-23T01:29:13Z |
Sierra IC | LM27403SQ/NOPB | Contact | - | - | - | - | - | 2019-12-16T00:48:56Z |
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Alternate Names
Texas Instruments has several brands around the world that may have alternate names for LM27403SQ/NOPB due to regional differences or acquisition. LM27403SQ/NOPB may also be known as the following names:
- TI
- TEXAS
- TEXAS INST
- TEXAS INSTR
- TEXAS INSTRUMENT
- TEXAS INS
- TEXAS INSTRUMENTS INC
- TEXAS INSTRUMEN
- TEX
- TEXAS INSTRU
- TI/NS
- Texas Instruments (TI)
- TEXASIN
- TEXINS
- TEXAS INSTRUMENTS INCORPORATED
- TEAXS
- TEXAS INTRUMENTS
- TEXAS INSTRUM
- TEXAS INSRUMENT
- TEXAS IST
- TI-PB
- TI-ROHS
- Texas Instruments Rfid Systems
- TEXINST
- TEXAS INSRUMENTS
- Texas Instr.
- Texas Instruments Inc.