AIC1740-25CY Analog Intergrations Corporation, AIC1740-25CY Datasheet

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AIC1740-25CY

Manufacturer Part Number
AIC1740-25CY
Description
Manufacturer
Analog Intergrations Corporation
Datasheet
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Analog Integrations Corporation
DS-1740-00 Aug 2, 00
TYPICAL APPLICATION CIRCUIT
FEATURES
APPLICATIONS
Low Dropout Linear Regulator
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Low Dropout Voltage of 900mV at 500mA
Output Current (3.0V Output Version).
Guaranteed 500mA Output Current.
Internal 1.5
Current.
Low Ground Current at 65 A.
2% Accuracy Output Voltage of 1.8V/ 2.0V/
2.5V/ 2.7V/ 3.0V.
Input Voltage Range up to 12V.
Needs only 4.7 F for Stability.
Current and Thermal Limiting.
Voltage Regulator for CD-ROM Drivers.
Voltage Regulator for LAN Cards.
Voltage Regulator for Monitor Microprocessor.
Voltage Regulator for RAM Module.
Wireless Communication Systems.
Battery Powered Systems.
V
I N
+
VIN
1 F
C
I N
AIC1740
P-MOSFET Draws no Base
GND
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
VOUT
+
V
10 F
C
OUT
OUT
Low Output Voltage, 500mA Low Dropout
FAX: 886-3-5772510
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DESCRIPTION
The AIC1740 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1740 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage.
approximately
65 A, from no load to maximum loading
conditions. Dropout voltage is exceptionally low.
Output current limiting and thermal limiting are
built in to provide maximal protection to the
AIC1740 against fault conditions.
The AIC1740 comes in the popular SOT-223,
TO-251 and TO-252 packages.
Typical
Linear Regulator
ground
current
www.analog.com.tw
AIC1740
remains
2

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AIC1740-25CY Summary of contents

Page 1

... V OUT + OUT FAX: 886-3-5772510 Linear Regulator DESCRIPTION The AIC1740 is a 3-pin low dropout linear regulator. The superior characteristics of the AIC1740 include zero base current loss, very low dropout voltage, and 2% accuracy output voltage. Typical ground current approximately 65 A, from no load to maximum loading conditions ...

Page 2

... AIC1740-18CF AIC1740-20CF AIC1740-25CF AIC1740-27CF AIC1740-30CF (TO-251) AIC1740-18CY AIC1740-20CY AIC1740-25CY AIC1740-27CY AIC1740-30CY (SOT-223) ...................................… … … … .................................... -0.3~12V .......… … … .............................. - .........................… … … … .......................... -65 C~150 C TO-251, TO-252 Package ....… … .… … .......... 12.5 C/W SOT-223 Package ....… … … … ..… … … .............15 C/W ...

Page 3

... V (Note 2) Current Limit V (Note 3) Dropout Voltage AIC1740s (Note 4) AIC1740-30 AIC1740-27 AIC1740-25 AIC1740-20 AIC1740-18 Ground Current I =0.1mA~I O Note 1: Guaranteed by design. Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low ON time. Note 3: Current limit is measured by pulsing a short time. Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below the value measured with a 1V differential ...

Page 4

... OUT V =2.7V OUT I OUT V =3.0V OUT 300 350 400 450 500 V IN 50mV/DIV V OUT Load Transient Response OUT V =3.0V OUT I =250mA OUT I =0.1mA OUT Time (0.5mS/DIV) Line Transient Response OUT I =1mA =4. =3.0V OUT Time (1mS/DIV) AIC1740 200mV/DIV 20mV/DIV 4 ...

Page 5

... Reference - VOUT GND recommended for operation below -25 C. The value of this capacitor may be increased without limit. A 0.1 F capacitor (or greater) should be placed from the AIC1740 input to ground if the lead inductance between the input and power source exceeds 500nH (approximately 10 inches of trace). AIC1740 5 ...

Page 6

... PHYSICAL DIMENSIONS l TO-251 (unit: mm TO-252 (unit: mm AIC1740 SYMBOL MIN A 2.19 A1 1.02 b 0.55 b2 5.21 C 0.46 C1 0.46 D 5.33 E 6.35 e 2.28 (TYP.) L 7.62 (TYP.) SYMBOL MIN A 2.19 A1 1.02 b 0.64 b2 5.21 C1 0.46 D 5.33 E 6.35 e 2.28 (TYP.) H 9.40 10.42 L 0.51 MAX 2.38 1.27 0.89 5.46 0.58 0.58 5.59 6.73 MAX 2.38 1.27 0.88 5.46 0.58 5.59 6. ...

Page 7

... SOT-223 (unit: mm (PLCS) 0.91 MIN l SOT-223 MARKING Part No. Marking AIC1740-18 AZ18 AIC1740-20 AZ20 AIC1740-25 AZ25 AIC1740-27 AZ27 AIC1740-30 AZ30 AIC1740 SYMBOL MIN MAX A1 0.02 B 0.60 B1 2.90 C 0.24 D 6.30 E 3.30 e 2.30 (TYP.) H 6.70 0.12 0.80 3.15 0.35 6.80 3.70 7.30 7 ...

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