MM1349 Просмотр технического описания (PDF) - Mitsumi

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MM1349

Step-Up DC/DC Converter (PWM)

Mitsumi 

MITSUMI

Step-Up DC/DC Converter (PWM) MM1349

Electrical Characteristics (Ta=25°C)(Except where noted otherwise,VIN=1.5V, IO=1mA)

Item

Symbol

Measurement conditions

Min. Typ. Max. Units

Operating voltage

VIN

No-load

0.90

VOUT V

A 4.80 5.00 5.20

B 3.36 3.50 3.64

C 3.07 3.20 3.33

Output voltage

VOUT

VIN=1.5V, Io=1mA

D 2.88 3.00 3.12 V

E 2.59 2.70 2.81

F 2.40 2.50 2.60

G 2.11 2.20 2.29

Output voltage temperature coefficient

Ta=-20~75°C

±100

ppm/°C

Input fluctuations

VIN=1.1 1.7V, Io=1mA

1 %/V

Load fluctuation

VIN=1.5V, Io=0 4mA

1 %/mA

Efficiency

VIN=1.5V, Io=1mA

80

µA

VL pin leakage current

IVLLK

VL=10V

1 µA

Oscillation frequency

fOSC

VIN=1.5V, Io=1mA

35 65 95 kHz

Note: These characteristics assume the following externally mounted components.

Coil: L=120µH (Mitsumi model C5-R)

Capacitor: C=33µF (tantalum electrolytic capacitor)

Schottky barrier diode (Rohm model RB451F)

Measuring Circuit

Application Circuits

Note 1: A: DC ammeter

V: DC voltmeter

Note 2: L=120µH

Coil: L=120µH (Mitsumi model C5-R)

Capacitor: C=33µF (tantalum electrolytic capacitor)

Schottky barrier diode (Rohm model RB451F)

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