Datasheet > ELM9550D-N

ELM9550D-N

更新时间： 2022-12-28 03:24:59

品牌	Logo	应用领域
ELM-TECH		转换器
页数	文件大小	规格书
5页	71K
描述
CMOS PWM step-up DC/DC converter

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

ELM9550D-N 数据手册

CMOS PWM step-up DC/DC converter

ELM95xxD

■General description

ELM95xxD series is CMOS PWM step-up DC/DC converter which consists of reference voltage source, error

ampliﬁer, oscillation circuit, start-up circuit, PWM control circuit, switch transistor and output voltage setting

resistor. For external parts, coil, diode and capacitor are possible choices; with external parts, ELM95 series

can acquire constant output voltage higher than input voltage. The standard output voltages are 2.7V,3.0V,3.3V

and 5.0V; ELM95 series can also be designed as semi-custom IC within the range of 2.5V to 5.5V by 0.1V step.

With newly-developed PWM control circuit, ELM95 series is able to modulate switching time smoothly with

constant frequency and consequently generates stable output with small ripples.

■Features

■Application

• Output voltage range

• Low voltage operation

• Low power operation

• High efﬁciency

: 2.5V to 5.5V (by 0.1V)

: Vin≥0.98V (RL=30kΩ)

: 35μW (Typ. ELM9530D)

: Typ. 85%

• Constant voltage source for battery-

operated devices

• Constant voltage source for cameras

• Portable communication equipments

• Local regulator

• High output voltage accuracy : 2.5%

• Output current (e.g.)

: 10mA (When Vin=1.5V, Vout=3.0V)

• Constant output frequency : Typ. 55kHz

• Small ripples

• Package

: SOT-89

■Maximum absolute ratings

Parameter

Apply voltage to LX pin

Apply voltage to VOUT pin

Output current of LX pin

Power dissipation

Symbol

Vlx

Vout

Ilx

Top

Limit

200

300

-40 to +85

-55 to +125

Unit

°C

Operating temperature

Storage temperature

Tstg

°C

■Selection guide

ELM95xxD-x

Symbol

e.g.:

27: Vout=2.7V

30: Vout=3.0V

33: Vout=3.3V

50: Vout=5.0V

S : Refer to PKG file

N: Refer to PKG file

ELM95 x x D - x

a, b

Output voltage

↑ ↑ ↑

a b c

↑

Product version

Taping direction

5 - 1

12 3 4 5

下载PDF

与ELM9550D-N相关器件

型号	品牌	描述	获取价格	数据表
ELM9550D-S	ELM-TECH	CMOS PWM step-up DC/DC converter	获取价格
ELM95-SERIES	ELM-TECH	CMOS PWM step-up DC/DC converter	获取价格
ELM97	ELM	CMOS Voltage detector	获取价格
ELM9709CAA	ELM	CMOS voltage detector IC for battery-operated portable devices	获取价格
ELM9709CAB-N	ELM-TECH	CMOS Voltage detector	获取价格
ELM9709CAB-S	ELM-TECH	CMOS Voltage detector	获取价格