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TECHNICAL DATA
5-V Low-Drop Voltage Regulator
ILE 4260 is a 5-V low-drop fixed-voltage regulator in P-TO220-5 package. The maximum input voltage is 42 V (65 V 400 ms). The device can produce an output current of more than 500 mA. It is shortcircuit-proof and incorporates temperature protection that disables the circuit at unpermissibly high temperatures. Due to the wide temperature range of - 40 to 150 C, the ILE 4260 is also suitable for use in automotive applications. The IC regulates an input voltage VI in the range 6 < VI < 35 V to VQnominal =5.0 V. A reset signal is generated for an output voltage of VQ < 4.75 V. The reset delay can be set externally with a capacitor. If the output current is reduced below 10 mA, the regulator switches internally to standby and the reset generator is turned off. The standby current drops to max. 700 A.
ILE4260-2
ILE4260S-2
ILE4260-2
ILE 4260S-2 ILE 4260-2
P-TO220-5-2 P-TO220-5-1
TA = -40 / 125 C for all packages
Features
* Low-drop voltage * Very low quiescent current * Low starting current consumption * Integrated temperature protection * Protection against reverse polarity * Input voltage up to 42 V * Overvoltage protection up to 65 V ( 400 ms) * Short-circuit proof * Suited for automotive electronics * Wide temperature range
1
ILE4260-2
Pin Configuration (top view)
Pin Definitions and Functions (ILE 4260 and ILE 4260 S) Pin No. Symbol Function Input; block directly to ground at the IC by a 470-nF capacitor Reset output; open collector output controlled by the reset delay Ground Reset delay; wired to ground with a capacitor 5-V output voltage; block to ground with a 22-F capacitor
1 2 3 4 5
VI
QVRES GND DRES
VQ
2
ILE4260-2
Circuit Description The control amplifier compares a reference voltage, which is kept highly accurate by resistance adjustment, to a voltage that is proportional to the output voltage and drives the base of the series transistor via a buffer. Saturation control as a function of the load current prevents any over-saturation of the power element. If the output voltage goes below 96% of its typical value, an external capacitor is discharged on pin 4 by the reset generator. If the voltage on the capacitor reaches the lower threshold VST, a reset signal is issued on pin 2 and not cancelled again until the upper threshold VDT is exceeded. For an output current of less than IQN Off = 10 mA the standby changeover turns off the reset generator. The latter is turned on again when the output current increases, the output voltage drops below 4.2 V or the delay capacitor is discharged by external measures. The IC also incorporates a number of internal circuits for protection against: * Overload * Overvoltage * Overtemperature * Reverse polarity Block Diagram
3
ILE4260-2
Absolute Maximum Ratings
Parameter
Symbol
Limit Values min max
Unit
Remarks
Input (Pin 1) Input voltage Input current
VI VI II
- 42 - -
42 65 1.6
V V A
-
t 400 ms
-
Reset Output (Pin 2) Voltage VR Current IR Ground (Pin 3) Current Reset Delay (Pin 4) Voltage Current Output (Pin 5) Differential voltage Current Temperature Storage temperature Operating Range Input voltage
-0.3 -
42 -
V -
- internally limited
IGND
-0.5
-
A
-
VD ID
- 0.3 -
42 -
V -
- internally limited
VI - VQ IQ
- 5.25 -
VI
1.4
V A
- -
Tstg
- 50
150
C
-
VI Junction temperature Tj
Thermal Resistances Junction ambient Rthja Junction case Rthjc
1) See
- - 40
32 165
V C
1)
-
- -
65 3
K/W K/W
- -
diagram "Output Current versus Input Voltage"
4
ILE4260-2
Characteristics VI = 13.5 V; Tj = 25 C; (unless otherwise specified)
Limit Values Parameter Normal Operation Output voltage VQ 4.75 5.0 5.25 V 25 mA IQ 500 mA 6 V VI 28 V - 40 C Tj 125 C Short -circuit current ISC 500 1000 - mA VI =17 V to 28 V; VQ = 0 V Current consumption Iq = II - IQ Current consumption Iq = II - IQ Current consumption Iq = II - IQ Drop voltage Drop voltage Load regulation Supply-voltage regulation Supply-voltage regulation Ripple rejection Temperature drift of output voltage1) Standby Operation Quiscent current; Iq = II - IQ Quiscent current; Iq = II - IQ Iq Iq - - 500 750 700 850 A A 10V VI 16 V; IQ = 0mA 10V VI 16 V; IQ = 5mA Iq - 8.5 10 mA1) 6 V VI 28 V IQ = 150 mA 6 V VI 28 V IQ = 500 mA VI 6 V IQ = 500 mA VI = 4.5 V; IQ = 0.5 A VI = 4.5 V; IQ = 0.15 A 25mA IQ 500 mA VI 6 V to 28 V; IQ = 100 mA VI 6 V to 16 V; IQ = 100 mA f = 100 Hz; Vr = 0.5 Vpp VQ - 2x 10-4 - 1/C - Symbol min. typ. max. Unit Test Condition
Iq Iq VDR VDR VQ VQ VQ SVR
- - - - - - - -
50 - 0.35 0.2 15 15 5 54
65 80 0.5 0.3 35 50 25 -
mA1) mA1) V V mV mV mV dB
5
ILE4260-2
Characteristics (cont'd) VI = 13.5 V; Tj = 25 C; (unless otherwise specified)
Limit Values Parameter Symbol min. typ. max. Unit Test Condition
Standby Off/Normal On Current consumption Current consumption Normal Off/Standby On Current consumption Current consumption Switching threshold Switching hysteresis Reset Generator Switching threshold Saturation voltage Reverse current Charge current Switching threshold Delay switching threshold Delay time Delay time General Data Turn-Off voltage Turn-Off hysteresis Leakage current Reverse output current
IqSOFF IqNON
- -
1.0 1.7
1.2 2.2
mA mA
see test diagram see test diagram
IqNOFF IqSON IQNOFF IQ
- - 7.5 2.25
1.55 850 10 3
2.00 1050 12.5 4
mA A mA mA
see test diagram see test diagram see test diagram see test diagram
VRT VR IR ID VST VDT tD tt
94
96 0.25 - 10 1.1 2.50 25 5
97 0.40 1 13 1.3 2.75 - -
% V A A V V ms s
in % of VQ; IQ > 500mA;VI = 6 V IR = 3 mA;VI = 4.5 V VR = 5 V - - - CD = 100 nF CD = 100 nF
- - 7 0.9 2.15 - -
VIOFF VI IQS IQR
40 - - -
43 3.0 500 -
45 - - 1.5
V V A mA
IQ < 1 mA - VQ = 0 V; VI = 45 V VQ = 5 V; VI = open
1) See
diagram
6
ILE4260-2
Application Circuit
Time Responce
7
ILE4260-2
Time Response in Standby Condition
8
ILE4260-2
Package Dimensions P-TO220-5-2
P-TO220-5-1
9

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