PFM Controlled, Step‐Up DC/DC Converters (Duty Ratio 75%)

Series

487

4

■General Description

■Features

■Applications

■Typical Application Circuit

■Typical Performance

Characteristic

NDuty 75%

NCMOS Low Power Consumption

NOperating Voltage

: 0.9V~10.0V

NOutput Voltage Range

: 2.0V~7.0V

NOutput Voltage Accuracy: ±2.5%

The XC6382 series is a group of PFM controlled step-up DC/DC

converters.

The XC6382 series employs CMOS process and laser trimming

technologies so as to attain low power and high accuracy.

Max. oscillator frequency is trimmed to 100kHz (accuracy: ±15%)

Every built-in switching transistor type enables a step-up circuit to be

configured using only three external components ; a coil, a diode, and a

capacitor.

External transistor versions are available to accommodate high output

current applications.

Both built-in and external transistor types include 5-pin and 3-pin

packages, which are provided with either a CE (chip enable) function that

function (separating power and voltage detect pins).

SOT-23, SOT-25 and SOT-89-5 super mini-mold packages.

Operating (start-up) voltage range

: 0.9V~10V

Output voltage range : 2.0V~7.0V in 0.1V increments

Highly accurate

: Set-up voltage ±2.5%

Maximum oscillator frequency

: 100kHz (±15%)

Duty ratio

: 75%(±5%)

Both switching transistor built-in and external types are

available.

Five-lead packaged units offer either Chip Enable or

Small package

: SOT-23, 25 mini-mold (3-pin, 5-pin)

SOT-89, 89-5 mini-power mold

(3-pin, 5-pin)

GCellular phones, pagers

GPalmtops

GCameras, video recorders

GPortable equipment

21

(TOP VIEW)

SOT-23

3

SD

GND

（Tantalum）

L

XC6382A301

L=100μH,C=47μF（Tantalum）

0

20

40

60

80

100

100

80

60

40

20

0

1.5V

1.2V

0.9V

04S_09XC6382 02.09.12 14:53 ページ 487