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TK65015MTL

更新时间： 2024-11-19 22:32:35

品牌	Logo	应用领域
TOKO		转换器监控监视器升压转换器
页数	文件大小	规格书
8页	120K
描述
STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR

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中文翻译

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数据手册

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TK65015MTL 数据手册

TK65015

STEP-UP VOLTAGE CONVERTER

WITH VOLTAGE MONITOR

FEATURES

■ 0.9 V Operation

APPLICATIONS

■ Battery Powered Systems

■ Very Low Quiescent Current

■ Internal Bandgap Reference

■ High Efficiency

■ Cellular Telephones

■ Pagers

■ Low Output Ripple

■ Personal Communications Equipment

■ Portable Instrumentation

■ Portable Consumer Equipment

■ Radio Control Systems

■ Microprocessor Reset Output

■ Laser-Trimmed Output Voltage

■ Undervoltage Lockout

■ Regulation by Pulse Burst Modulation (PBM)

DESCRIPTION

The TK65015 Low Power Step-Up DC-DC converter is

designed for portable battery powered systems, capable of

operating from a single battery cell down to 0.9 V.

the "bursting" and skipping of pulses which can be seen at

the IND pin of the IC.

The output voltage is laser-trimmed to 3.0 V. An internal

detector monitors the output voltage and provides an

active-low microprocessor reset signal whenever the out-

put voltage falls below an internally preset limit. An internal

undervoltage lockout circuit is utilized to prevent the induc-

tor switch from remaining in the "ON" mode when the

battery voltage is too low to permit normal operation.

Special care has been taken to achieve high reliability

through the use of Oxide, Nitride passivation and an

additional polyimide coating. The TK65015 is available in a

very small plastic surface mount package. (SOT-23L)

Pulse burst modulation (PBM) is used to regulate the

The TK65015 provides the power switch and the control

circuit for a boost converter. The converter takes a DC

input (typically a single battery cell) and boosts it up to 3

volts. Thisregulated3voltoutputistypicallyusedtosupply

power to a microprocessor-controlled system.

TK65015M

RESET

GND

IND

M15

voltage at the V

pin at the IC. PBM is the process in

OUT

which an oscillator signal is gated or not gated to the switch

driveeachperiod.Thedecisionismadejustbeforethestart

ofeachcycleandisbasedoncomparingtheoutputvoltage

to an internally-generated bandgap reference. The deci-

sion is latched, so the duty ratio is not modulated within a

cycle. The average duty ratio is effectively modulated by

BLOCK DIAGRAM

ORDERING INFORMATION

IND

TK65015M

UVLO

REF

Tape/Reel Code

CONTROL

CIRCUIT

RESET

RC OSC.

TAPE/REEL CODE

BX : Bulk/Bag

TL : Tape Left

2,5

GND

February, 1996 TOKO, Inc.

2-2-96

Page 1

12 3 4 5 6 7 8

中文翻译

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与TK65015MTL相关器件

型号	品牌	获取价格	描述	数据表
TK65018	TOKO	获取价格	CMOS SWITCHED CAPACITOR VOLTAGE CONVERTER WITH REGULATOR
TK65018M	TOKO	获取价格	CMOS SWITCHED CAPACITOR VOLTAGE CONVERTER WITH REGULATOR
TK65018MI	TOKO	获取价格	Switched Capacitor Regulator, 0.005A, 166kHz Switching Freq-Max, CMOS, PDSO6, SOT-23L, SMT
TK65018MITL	TOKO	获取价格	CMOS SWITCHED CAPACITOR VOLTAGE CONVERTER WITH REGULATOR
TK65020	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER
TK65020MTL	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER
TK65020MTL/20M	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER
TK65025	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65025M	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR
TK65025MBX	TOKO	获取价格	STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR

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