LM65440-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

• Wide input voltage range: 3V to 36V

• Designed for low EMI requirements

– Facilitates CISPR 25 class 5 compliance

– ±5% dual-random spread spectrum

– Enhanced HotRod™ QFN package with

symmetrical pinout

– Switching frequency from 300kHz to 2.2MHz

– Pin-configurable 400kHz and 2.1MHz

– Pin-configurable AUTO or FPWM operation

– Dual phase capable up to 16A for high current

designs

– Pin-pin with 65V LM656x5-Q1 family

• Low minimum on time: 40ns (maximum)

• High-efficiency power conversion at all loads

– > 94.65% peak efficiency at 12VIN, 5VOUT,

400kHz

– 3.0μA PFM no-load input current

• High power density

– Internal compensation, current limit, and TSD

– 3.6mm × 2.6mm, wettable flank, 20-pin

package

– ϴJA = 24.0°C/W (LM654x0-Q1EVM)

• Create a custom design using the LM654x0-Q1

with the WEBENCH® Power Designer

2 Applications

• Advanced driver assistance systems (ADAS)

• Automotive infotainment and cluster

• Hybrid, electric, and powertrain systems

3 Description

The LM654x0-Q1 are a family of automotive buck

converters designed for high efficiency, high power

density, and ultra-low electromagnetic interference

(EMI). The converters operate over a wide input

voltage range of 3V to 36V (42V tolerant) The

LM654x0-Q1 is dual phase capable by simply

connecting the compensated error signal between

the primary and secondary device. The LM654x0-

Q1 comes with pin selectable fixed output voltages

of 3.3V and 5V or in adjustable configuration. The

low EMI operation is enabled with minimized loop

inductance and optimized switch node slew rate. The

current-mode control architecture with a 30ns typical

minimum on-time allows high conversion ratios at high

frequencies coupled with a fast transient response

and excellent load and line regulation.