1

Parameter

Symbol

Limit

Unit

Apply voltage to LX pin

Vlx

12

V

Apply voltage to VOUT pin

Vout

12

V

Output current of LX pin

Ilx

200

mA

Power dissipation

Pd

300

mW

Operating temperature

Top

-40 to +85

°C

Storage temperature

Tstg

-55 to +125

°C

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.

• Constant voltage source for battery-

operated devices

• Constant voltage source for cameras

• Portable communication equipments

• Local regulator

ELM95xxD-x

Symbol

a, b

Output voltage

e.g.:

27: Vout=2.7V

30: Vout=3.0V

33: Vout=3.3V

50: Vout=5.0V

c

Product version

D

d

Taping direction

S : Refer to PKG file

N : Refer to PKG file

ELM95 x x D - x

↑ ↑ ↑

↑

a b c

d

■General description

■Features

■Application

■Maximum absolute ratings

■Selection guide

5 -

• Output voltage range

: 2.5V to 5.5V (by 0.1V)

• Low voltage operation

: Vin≥0.98V (RL=30kΩ)

• Low power operation

: 35μW (Typ. ELM9530D)

• High efficiency

: Typ. 85%

• 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