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IRU1205-33CL |IRU120533CLIRN/a40400avai0.3A Fixed LDO Linear Regulator in a SOT-23 5-Leads package
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IRU1205-36CLTR |IRU120536CLTRIRN/a6000avai0.3A Fixed LDO Linear Regulator in a SOT-23 5-Leads package


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IRU1205-25CLTR-IRU1205-28CLTR-IRU1205-30CLTR-IRU1205-33CL-IRU1205-33CLTR-IRU1205-36CLTR-IRU1205CLTR
0.3A Fixed LDO Linear Regulator in a SOT-23 5-Leads package
Data Sheet No. PD94133 IRU1205
lnterryoiif.),ryol |RU1205-18 I IRU1205-25 / IRU1205-28
TOR Rectifier IRU'1205-30 I IRU1205-33 I IRU1205-36
300mA ULTRA LOW DROPOUT POSITIVE
ADJUSTABLE AND FIXED REGULATORS
FEATURES DESCRIPTION
El SOT-23 Package The IRU1205 device is an efficient linear voltage regula-
El Stable with 2.2uF Ceramic Capacitor tor with better than 1% initial voltage accuracy, very low
Cl 1% Voltage Reference Accuracy dropout voltage and very low ground current designed
Cl Only 270mV Dropout at 300mA especially for hand held, battery powered applications.
and 170mV Dropout at 150mA Other features of the device are: TTL compatible enable/
Cl 5wA Quiescent Current in Shutdown shutdown control input, current limiting and thermal shut-
D Current Limit and Thermal Shutdown down.
D Logic Input Enable Pin
The IRU1205 is available in foted and adjustable output
APPLICATIONS voltage versions in a small SOT-23 5-Pin package.
Laptop, Notebook & Palmtop computers
Battery Powered Equipments
PCMCIA Vcc & Vpp Regulator
Consumer Electronics
High Eeciency Linear Power Supplies
TYPICAL APPLICATION
VlN>T-{ 1 VIN
Vo = 1.25x (1+ 'bl)
SD Enable "--(E En
Figure 1 - Typical application of the IRU1205 ajustable voltage regulator.
3-3v'tr--IE IAN Vow 5 2.5V
22qu +
2.2tgfr
SD l Erie-IES En OBYP E103 I
I 1000pF _
Figure 2 - Typical application of the IRU1205-25 foted voltage regulator.
PACKAGE ORDER INFORMATION
Tu (°C) 5-PIN SOT-23 OUTPUT
SOT-23 (L5) MARKING VOLTAGE
0 To 125 IRU1205CL ATOO Ad]
0 To 125 1RU1205-18CL AT18 1.8V
0 To 125 IRU1205-25CL AT25 2.5V
0 To 125 IRU1205-28CL AT28 2.8V
0 To 125 1RU1205-30CL AT30 3.0V
0 To 125 IRU1205-33CL AT33 3.3V
0 To 125 IRU1205-36CL AT36 3.6V
Rev. 2.3 1
07/16/02
IRU1205 .
|RU1205-18 / IRU1205-25 I IRU1205-28 International
IRU1205-30 I IRU1205-33 / IRU1205-36 TOR Rectifier
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V IN) ..................................................... 10V
Enable Input Voltage ................................................. 10V
Storage Temperature Range ....................................... -65°C To 150°C
Operating Junction Temperature Range ...................... 0°C To 150°C
PACKAGE INFORMATION
5-PIN SOT-23 (L5) 5-PIN SOT-23 (L5)
En Gnd VJN En Gnd VIN
AT00 Adjustable ATxx Fixed
E: JS, °JA=256°CNV CBYP E. 6JA=256°C/W
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over CN=Co=22wF, Io=100wA, 1hN(oN)=2.5V(Adjustable
devices) V|N=VO + 1V(for fixed voltage devices), Vour=VFB(for adjustable version only), CtsYP=470pF(for AT18, AT25,
AT28, AT30, AT33 and AT36), VENB=2V and TA=25°C. Typical values refer to TA=25°C. Low duty cycle pulse testing
is used which keeps junction and case temperatures equal to the ambient temperature.
PARAMETER SYM TEST CONDITION MIN TYP MAX UNITS
Reference Voltage Vo -1 1 %
(See Table 1 for typical values) (Note 4) -2
Line Regulation AVI Vo + 1VLoad Regulation (Note 1) AVL 1mA100mADropout Voltage (Note 2) AVKO) lo=100wA 10 50 mV
Io=100wA (Note 4) 13 70
lo=50mA 85 110
Io=50mA (Note 4) 100 140
lo=150mA 170 220
lo=150mA (Note 4) 204 260
lo=300mA 270 350
|o=300mA (Note 4) 324 400
Ground Current (Note 3) lo Ven=2V, lo=100wA 120 160 wA
lo=100wA (Note 4) 240
lo=50mA 420 600
lo=50mA (Note 4) 540
|o=150mA 2200 2900
|o=150mA (Note 4) 2900
lo=300mA 7200 9500
lo=300mA (Note 4) 9300
Ground Current-SD Activated lmsm Ven=0V to 0.8V or Open 5 p.A
Current Limit ICL Vo=0V 320 420 mA
Thermal Regulation AVP V|N=10V, lo=150mA, 10ms Pulse 0.05 %/W
Adjust Pin Current IADJ VIN=2.5V, V0=VADJ 0.1 WA
Enable Pin Input LO Voltage VEN(L) Regulator OFF 0.8 V
Enable Pin Input HI Voltage VEN(H) Regulator ON 2 V
Enable Pin Input LO Current VEN(L)=0V to 0.8V 0.01 WA
Enable Pin Input HI Current VEN(H)=2V to VIN 20 WA
2 Rev. 2.3
07/16/02
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