TPS564242DRLR集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

TPS564242DRLR属于集成电路（IC）的稳压器-DC-DC开关稳压器。由德州仪器制造生产的TPS564242DRLR稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。

1 Features

• Configured for a wide range of applications

– 3-V to 16-V input voltage range

– 0.6-V to 7-V output voltage range

– 0.6-V reference voltage

– ±1 reference accuracy at 25°C

– ±1.5 reference accuracy at –40°C to 125°C

– Integrated 28.8-mΩ and 15.4-mΩ RDSON FET

– 120-μA low quiescent current

– 1.2-MHz switching frequency

– Supports maximum 95 duty cycle operation

– Precision EN threshold voltage

– 1.39-ms fixed typical soft-start time

• Ease of use and small solution size

– Eco-mode (TPS564242) and FCCM mode at

light loading (TPS564247)

– Part of a full P2P family including solutions for 4

A, 5 A, and 6 A and FCCM/ECO operation

– D-CAP3™ control topology

– Support start-up with prebiased output

– Non-latch for OV/OT/UVLO protection

– Hiccup mode for UV protection

– Cycle-by-cycle OC and NOC limit

– 6-pin SOT-563 package

• Create a custom design using the TPS564242 with

the WEBENCH® Power Designer

• Create a custom design using the TPS564247 with

the WEBENCH® Power Designer

2 Applications

• LCD TV, STB and DVR, streaming media player

• IP network camera, video doorbell, building

security gateway

• WLAN/Wi-Fi access point, modem (cable/DSL/

GFAST), solid state drive

3 Description

The TPS56424x is simple, easy-to-use, high power

density, high efficiency synchronous buck converter.

The device supports input voltage ranging from 3 V to

16 V and up to 4-A continuous current with a SOT-563

package.

The TPS56424x uses D-CAP3 topology to provide

a fast transient response and support low-ESR

output capacitors with no requirement for external

compensation. It has two grounds, GND and AGND,

which should be connected together for optimal

thermal performance. AGND also provides a good

load and line regulation. The device can support up

to 95 duty operation.

The TPS564242 operates in Eco-mode, which

maintains high efficiency during light loading. The

TPS564247 operates in FCCM mode, which keeps

the same frequency and lower output ripple during

all load conditions. It integrates complete protection

through OVP, OCP, UVLO, OTP, and UVP with

hiccup. The device is available in 1.6-mm × 1.6-

mm SOT-563 package and has an optimized pinout

for easy PCB layout. The junction temperature is

specified from –40°C to 125°C.