TD1410 TD泰德授权代理商 DCDC降压IC 代替MPS1410

产品详情

The TD1410 is a 380 KHz fixed frequency monolithic

step down switch mode regulator with a built in internal

Power MOSFET. It achieves 2A continuous output

current over a wide input supply range with excellent

load and line regulation.

The device includes a voltage reference, oscillation

circuit, error amplifier, internal PMOS and etc.

The PWM control circuit is able to adjust the duty ratio

linearly from 0 to . An enable function, an over

current protection function and a short circuit protection

function are built inside. An internal compensation block

is built in to minimize external component count.

The TD1410 serves as ideal power supply units for

portable devices.

Applications

z Portable DVD

z LCD Monitor / TV

z Battery Charger

z ADSL Modem

z Telecom / Networking Equipment

The maximum junction temperature of TD1410 is 145°C,

which limits the maximum load current capability. Please

see the thermal de-rating curves for the maximum load

current of the TD1410 under different ambient

temperatures.

The thermal performance of the TD1410 is trongly

affected by the PCB layout. Extra care should be taken

by users during the design process to nsure that the IC

will operate under the recommended environmental

conditions.

Several layout tips are listed below for the best electric

and thermal performance.

1. Do not use thermal relief connection to the VIN and

the GND pin. Pour a maximized copper area to the GND

pin and the VIN pin to help thermal dissipation.

2. Input capacitor should be connected to the VIN pin

and the GND pin as close as possible.

3. Make the current trace from VOUT pins to L to the

GND as short as possible.

4. Pour copper plane on all unused board area and

connect it to stable DC nodes, like VIN, GND, or VOUT.

5. Keep sensitive signal traces such as trace connecting

FB pin away from the VOUT pins.