TK65433TL Просмотр технического описания (PDF) - Toko America Inc

Номер в каталоге

Компоненты Описание

производитель

TK65433TL

STEP-DOWN CONVERTER WITH BATTERY MONITOR

Toko America Inc  

TK654xx

ADVANCED INFORMATION

APPLICATION INFORMATION (CONT.)

Wireless Application Extend battery life, yet keep RF clean

Application results with waveforms for TK65430 in a Buck and Linear Mode

Figure 13 is a schematic of an application board available from Toko as APO14-99 from which the results shown

below were obtained. This application uses the TK11330 Low Dropout Regulator with the control function enabling

the regulator on when this control pin is low.

LBO

SB

3.0 V

Note A: This is a low ESR

(80 mΩ) capacitor from

AVX TPSD107 M010R0080

Note B

100 µH

100 µF

VOUT

SW

Note A

TK65430

GND

VIN

Control

VIN

Note B: Coil used to obtain

waveforms was D63LCB type

A921CY-101M from Toko

GND

TK11330

Noise

Bypass

1000 pF

GND

VOUT

10 µF

Transmit/

Receive

VIN

FIGURE 13: BUCK AND LINEAR SCHEMATIC

VIN

CIN

GND

10 µF

Page 24

CON

TK654xx

1

TK113xxBM

1

CN

1000pF

D1

Optional

875FU-xxxM

CL

100 µF

VOUT

FIGURE 14: BUCK AND LINEAR APPLICATION BOARD LAYOUT

September 1999 TOKO, Inc.

Share Link: