iru1207 International Rectifier Corp., iru1207 Datasheet

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iru1207

Manufacturer Part Number
iru1207
Description
1a Very Low Dropout Positive Fixed And Adjustable Regulators -
Manufacturer
International Rectifier Corp.
Datasheet

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FEATURES
APPLICATIONS
TYPICAL APPLICATION
PACKAGE ORDER INFORMATION
Rev. 2.3
08/02/02
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
0 To 125
T
Low Dropout Voltage (500mV at 1A)
1% Voltage Reference Accuracy
Low Ground Current
1mA Maximum Quiescent Current in Shutdown
(IRU1207, IRU1208)
Fast Transient Response
Current Limit and Thermal Shutdown
Error Flag Signal for Output out of Regulation
(IRU1207, IRU1208)
2.5V Supply from 3.3V Input for the new
generation of Logic ICs
Computer Mother Board, Add-On Cards
High Efficiency Post Regulator in Switch Mode
Power Supply (SMPS)
J
(°C)
IRU1206-25CD IRU1206-25CY
IRU1206-18CD IRU1206-18CY
IRU1206-33CD IRU1206-33CY
2-PIN TO-252
(D-PAK)
NA
NA
NA
NA
NA
Figure 1 - Typical application of the 1206-XX in a 3-Pin SOT-223 package.
IRU1206-
SOT-223 (Y)
XX
V
3-PIN
IN
NA
NA
NA
NA
NA
IRU1206 / IRU1207 / IRU1208 / IRU1209
V
Gnd
OUT
V
IN
FIXED AND ADJUSTABLE REGULATORS
3
2
1
IRU1207-18CS
IRU1207-25CS
IRU1207-33CS
IRU1208CS
IRU1209CS
8-PIN PLASTIC
www.irf.com
C1
1A VERY LOW DROPOUT POSITIVE
SOIC (S)
NA
NA
NA
DESCRIPTION
The IRU1206 family of devices are ultra low dropout 1A
regulators using PNP transistor as the pass element.
These products are ideal when a single input supply is
only available and the dropout voltage is less than 1V,
exceeding the minimum dropout characteristics of NPN/
PNP hybrid regulators. One common application of these
regulators is where input is 3.3V and a 2.5V output is
needed.
Besides the low dropout of less than 0.5V, other fea-
tures of the family of the parts are: micro-power shut-
down capability and output UVLO detection where Flag
pin is switched low when output is below 5% of its nomi-
nal point.
VOLTAGE
2.5V
1.8V
3.3V
1.8V
2.5V
3.3V
Adj
Adj
C2
V
V
V
V
V
V
V
V
IN
V
IN
IN
IN
IN
IN
IN
IN
, V
, V
, V
OUT
, V
, V
, V
, V
, V
Data Sheet No. PD94134
OUT
OUT
OUT
PIN FUNCTIONS
OUT
OUT
OUT
OUT
OUT
, Gnd
, Gnd
, Gnd
, Gnd, Flag, Adj
, Gnd, Enable, Adj
, Gnd, Enable, Flag
, Gnd, Enable, Flag
, Gnd, Enable, Flag
1

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iru1207 Summary of contents

Page 1

... To 125 125 NA Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 1A VERY LOW DROPOUT POSITIVE FIXED AND ADJUSTABLE REGULATORS DESCRIPTION The IRU1206 family of devices are ultra low dropout 1A regulators using PNP transistor as the pass element. These products are ideal when a single input supply is ...

Page 2

... IRU1206 / IRU1207 / IRU1208 / IRU1209 ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) .................................................... 12V IN Enable Input Voltage ................................................ 12V Storage Temperature Range ...................................... -65°C To 150°C Operating Junction Temperature Range ..................... PACKAGE INFORMATION 2-PIN PLASTIC TO-252 (D-Pak) IRU1206 FRONT VIEW 3 V OUT Tab is Gnd IRU1207 TOP VIEW ...

Page 3

... The IRU120X series of regulators require the use of an output capacitor as part of the frequency compensation in order to make the regulator stable. A minimum of 2.2mF capacitance and the ESR in the range of 0 in- sures the stability of the system. Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 TEST CONDITION Enable=Open Q(SD) Regulator OFF (Note 4) EN(L) Regulator ON (Note 4) ...

Page 4

... IRU1206 / IRU1207 / IRU1208 / IRU1209 TYPICAL APPLICATION IRU1206 Ref Desig Description C1 Capacitor C2 Capacitor 5 Gnd Flag 6 Gnd V IRU1207 7 Gnd 8 Gnd Enable SD Enable V IN Ref Desig Description C1 Capacitor C2 Capacitor R1 Resistor OUT 2 Gnd Note: Tab must also be connected to ground. Figure 2 - Typical application of IRU1206. ...

Page 5

... OUT IRU1208 7 Gnd 8 Gnd Flag V IN Figure 4 - Typical application of IRU1208 in 3.3V to 2.5V regulator. Ref Desig Description C1 Capacitor C2 Capacitor R1 Resistor R2 Resistor R3 Resistor Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 4 Adj 1. Qty Part # 1 10mF, Tantalum 1 10mF, Tantalum 1 127V 124V 10KV, 5% www ...

Page 6

... IRU1206 / IRU1207 / IRU1208 / IRU1209 TYPICAL APPLICATION 5 Gnd 6 Gnd IRU1209 7 Gnd 8 Gnd SD Enable V IN Figure 5 - Typical application of IRU1209 in 3.3V to 2.5V regulator. Ref Desig Description C1 Capacitor C2 Capacitor R1 Resistor R2 Resistor 6 4 Adj 3 V OUT Enable Qty Part # 1 10mF, Tantalum 1 10mF, Tantalum ...

Page 7

... Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 IRU1209 Line Regulation @ 5mA to 100mA Vout Percent Error Input Voltage Figure 6 IRU1209 Maximum Output Current ~ 1.25A while in the current limit mode. IRU1209 Output Voltage in Yellow offset equal to the output voltage is applied to improve resolution. ...

Page 8

... IRU1206 / IRU1207 / IRU1208 / IRU1209 CHARACTERISTICS IRU1209 Voltage Drop-out Variation with Ambient Temperature with various load currents 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 - 100 Temperature ( & & C) Figure 8 100 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 8 IRU1209 Vout Variation with Ambient Temperature 2 ...

Page 9

... Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 (D) TO-252 Package 2-Pin 458 NOTE: ALL MEASUREMENTS www.irf.com SYMBOL MIN MAX A 6.477 6.731 B 5.004 5.207 C 0.686 0.838 D 7.417 8.179 E 9.703 10.084 F 0.635 0.889 2.286 BSC G H 4.521 4 ...

Page 10

... IRU1206 / IRU1207 / IRU1208 / IRU1209 8-Pin Surface Mount, Narrow Body PIN NO NOTE: ALL MEASUREMENTS ARE IN MILLIMETERS. 10 (S) SOIC Package DETAIL-A 0.386 0.015 x 458 K F 8-PIN SYMBOL MIN MAX A 4.80 4.98 B 1.27 BSC 0.53 REF C D 0.36 0.46 E 3.81 3.99 F 1.52 1.72 G 0.10 0. BSC I 0.19 0.25 J 5.80 6. 0.41 1. ...

Page 11

... Rev. 2.3 08/02/02 IRU1206 / IRU1207 / IRU1208 / IRU1209 (Y) SOT-223 Package 3-Pin SYMBOL H E NOTE: ALL MEASUREMENTS www.irf.com MIN MAX A 1.498 1.702 A1 0.02 0.11 B 2.895 3.15 B1 0.637 0.85 C 0.239 0.381 D 6.299 6.706 E 3.30 3.708 e 2.209 2.953 e1 4.496 4.699 H 6.70 7. 108 Q1 78 168 Q2 78 168 S 0 ...

Page 12

... IRU1206 / IRU1207 / IRU1208 / IRU1209 PACKAGE SHIPMENT METHOD PKG PACKAGE DESIG DESCRIPTION D TO-252, (D-Pak) S SOIC, Narrow Body Y SOT-223 1 1 Feed Direction Figure A IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 12 PIN PARTS COUNT PER TUBE ...

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