LM21305SQ/NOPB

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Details for Texas Instruments

LM21305SQ/NOPB

3-18V, 5A, Current Mode Synchronous Buck Regulator with Adjustable Frequency
Buy Directly from Texas Instruments (1811 in Stock)
$2.5000 per unit
Series Information for LM21305SQ/NOPB - Texas Instruments

Description

DC/DC CONV SYNC BUCK 1.5MHZ WQFN-28
The LM21305 is a full-featured, 5-A, synchronous buck dc-dc converter optimized for solution size, flexibility, and high conversion efficiency. High-power density LM21305 designs are easily achieved by virtue of monolithic integration of high-side and lowside power MOSFETs, high switching frequency, peak current-mode control, and optimized thermal design. The efficiency of the LM21305 is maximized at light loads with diode emulation mode operation and at heavy loads by optimal design of the MOSFET adaptive gate drivers to minimize switch dead-times and body-diode conduction losses. The LM21305 accepts a wide input voltage range of 3 V to 18 V for interface to various intermediate bus voltages, including 3.3-V, 5-V, and 12-V rails. A 1.5% voltage reference and 70-ns, high-side MOSFET minimum controllable on-time enable output voltages as low as 0.598 V with excellent setpoint accuracy. The LM21305 is available in a 5-mm × 5-mm2 WQFN-28 thermally-enhanced package with 0.5-mm pitch.

Specifications

DC / DC Converter Type:
-
Input Voltage Min:
3V
Input Voltage Max:
18V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
WQFN
No. of Pins:
28Pins
Output Current:
5A
Output Voltage Min:
600mV
Output Voltage Max:
-
Switching Frequency:
1.5MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Max:
85°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2A - 4 weeks
SVHC:
No SVHC (27-Jun-2018)
Adjustable Output Voltage Min:
600mV
Output Type:
Adjustable

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 3V to 18V 28-Pin LLP EP

Avnet America product

Avnet Europe

Conv DC-DC Single Step Down 3V to 18V 28-Pin LLP EP

Avnet Europe product

Texas Instruments

3-18V, 5A, Current Mode Synchronous Buck Regulator with Adjustable Frequency

Texas Instruments product