AIC1638 查看數據表（PDF） - Analog Intergrations

零件编号

产品描述 (功能)

比赛名单

AIC1638

3-PIN ONE-CELL STEP-UP DC/DC CONVERTER

Analog Intergrations 

AIC1638

3-PIN ONE-CELL STEP-UP DC/DC CONVERTER

SPEC NO: DS-1638-00 03/01/00

" TYPICAL PERFORMANCE CHARACTERISTICS (CONTINUED)

VOUT

50mV/div



Load Step

50mA/div

VOUT

20mv/div

VIN

0.5V/div

Load Transient Response

(L=100µH, Co=47µF, VIN=2V)

 BLOCK DIAGRAM

Line Transient Response

VOUT

1.25V REF.

SW

1M

-

+

GND

Enable OSC, 100KHz

 PIN DESCRIPTIONS

PIN1 : GND - Ground. Must be low impedance;

sorder directly to ground plane.

PIN2 : VOUT - IC supply pin. Connect VOUT to

the regulator output.

PIN3 : SW – Internal drain of N-MOSFET switch.

 APPLICATION INFORMATION

GENERAL DESCRIPTION

AIC1638 PFM (pulse frequency modulation) controller

ICs combine a switch mode regulator, N-channel

power MOSFET, precision voltage reference, and

voltage detector in a single monolithic device. They

offer both extreme low quiescent current, high

efficiency, and very low gate threshold voltage to

ANALOG INTEGRATIONS CORPORATION

4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.

ensure start-up with low battery voltage ( 0.8V typ.).

Designed to maximize battery life in portable products,

and minimize switching losses by only switching as

needed service the load.

PFM controllers transfer a discrete amount of energy

per cycle and regulate the output voltage by

modulating switching frequency with the constant

www.analog.com.tw

TEL: (8863)577-2500 FAX:(8863)577-2510

11

Share Link: