iruh3301a1ak International Rectifier Corp., iruh3301a1ak Datasheet

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iruh3301a1ak

Manufacturer Part Number
iruh3301a1ak
Description
Radiation Hardended Ultra Low Dropout Adjustable Positive Linear Regulator
Manufacturer
International Rectifier Corp.
Datasheet
Radiation Hardended Ultra Low Dropout
Adjustable Positive Linear Regulator
Description
The IRUH3301A1 is a space qualified, ultra low dropout
linear regulator designed specifically for applications
requiring high reliability, low noise and radiation hardness.
The output voltage can be adjusted to a low 0.8V with a
droput voltage of 400mV at the full rated current of 3.0
Amps.
www.irf.com
Product Summary
Absolute Maximum Ratings
Power Dissipation @ T
Maximum Output Current @ Maximum
Power Dissipation with no Derating
Non-Operating Input Voltage
Operating Input Voltage
Ground
Shutdown Pin Voltage
Output Pin Voltage
Operating Case Temperature Range
Storage Temperature Range
Maximmum Junction Temperature
Lead Temperature (Soldering 10sec)
Pass Transistor Thermal Resistance, Junction to Case
IRUH3301A1AK
IRUH3301A1AP
Part Number
Parameter
C
Dropout
= 125°C
0.4V
3.0A
I
O
3.3V
V
IN
Symbol
V
R
V
GND
SHDN
V
V
THJC
P
T
T
I
OUT
T
T
O
Features
n
n
n
n
n
n
n
n
n
n
n
n
IN
IN
O
D
S
L
J
V
Sequencing Easily Implemented
Ensures Higher Reliability
as IRUH3301A1BK / IRUH3301A1BP
ADJ
Silicon On Insulator (SOI) CMOS Regulator
ELDRS up to 100Krad(Si) (Condition D)
SEU Immune up to LET = 80 MeV*cm
Space Level Screened
Fast Transient Response
Timed Latch-Off Over-Current Protection
Internal Thermal Protection
Adjustable Output as low as 0.8V
On/Off Control via Shutdown Pin, Power
Isolated Hermetic 8-Lead Flat Pack
This part is also available in MO-078 Package
IC, CMOS Latch-Up Immune,
Inherently Rad Hard
Total Dose Capability up to 300Krads(Si)
(Condition A); Tested to 500Krad (Si)
OUT
+3.3V
Min.
-0.3
-0.3
-0.3
-0.3
-55
-65
2.9
-
-
-
-
-
IN
IRUH3301A1AK
IRUH3301A1AP
to V
See Fig 4
V
V
8-LEAD FLAT PACK
IN
IN
Max.
+140
+150
+150
+300
+8.0
6.4
0.3
1.0
25
+ 0.3
+ 0.3
ADJ
PD-97533A
@3.0A
Units
°C/W
08/02/10
2
/mg
°C
W
A
V
1

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iruh3301a1ak Summary of contents

Page 1

... Ensures Higher Reliability This part is also available in MO-078 Package n as IRUH3301A1BK / IRUH3301A1BP Symbol GND V SHDN V OUT THJC PD-97533A IRUH3301A1AK IRUH3301A1AP to V @3.0A IN ADJ 8-LEAD FLAT PACK 2 /mg Min. Max. Units - See Fig 4 A -0.3 +8.0 2.9 6.4 V 0.3 -0 ...

Page 2

... IRUH3301A1AK IRUH3301A1AP Electrical Characteristics Pre-Radiation @T = 25° Parameter 2.97V ≤ V 2.97V ≤ V Reference Voltage -55°C to +125°C 2.97V ≤ V (Measured @ ADJ Pin) Post -Rad ™ 3.0A Dropout Voltage Post -Rad Over-Current Latching, -55°C to +125°C, Current Limit Post -Rad I > I ...

Page 3

... International Rectifier does not currently have a DSCC certified Radation Hardness Assurance Program. www.irf.com Conditions Min 300 100 84 SCREENING LEVEL SPACE 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% 100% IRUH3301A1AK IRUH3301A1AP Typ Unit 500 Krads (Si) d See Krads (Si) 2 MeV*cm / Neutrons/cm 1.0e MIL-STD-883 METHOD 2023 2017 1014 ...

Page 4

... IRUH3301A1AK IRUH3301A1AP Application Information Input Voltage 0.1uF and 1uF Ceramic; Two 100uF Low ESR Tantalum Fig. 1. Typical Regulator Circuit; Note the SHDN Pin is hardwired in the “ON” position. The ADJ Pin is connected as noted in the “General Layout Rules” section. Setting the Output Voltage Choose R1 based upon the desired output voltage using the formula below ...

Page 5

... Fig. 2a. Layer 1 conductor. Ground plane below layer 1 www.irf.com Pin are required for proper operation. When the IN V Pin using as short a trace as possible with the OUT and GND Pins with as wide a trace as OUT Fig. 2b. Layer 1 silkscreen IRUH3301A1AK IRUH3301A1AP can be as much as Pin ...

Page 6

... IRUH3301A1AK IRUH3301A1AP V IN SHDN Thermal Shutdown Latch Timing capacitor GND Fig. 3. Maximum Output Current (A) with no derating at Maximum Dissipation 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 100 110 Fig. 4. Maximum Output Current versus Mounting Surface Temperature Dissipation 6 Input Undervoltage detect Shutdown Disable & Over Current Latch - Error Amp + VREF ...

Page 7

... Change in Output Voltage vs. Total Ionizing Dose Radiation Exposure at Both High and Low Dose Rates Fig. 6. Typical Power Supply Ripple Rejection at 100mA and 1.6A using recommended layout and capacitors. Results above 10KHz are influenced by testing setup and layout. www.irf.com VOut 10 100 1000 10000 Total Dose (Rad (Si)) IRUH3301A1AK IRUH3301A1AP ELDRS TID 100000 7 ...

Page 8

... IRUH3301A1AK IRUH3301A1AP Fig 7. Case Outline and Dimensions - 8-Lead Flat Pack (Lead Form Down) Fig 8. Case Outline and Dimensions - 8-Lead Flat Pack (Lead Trimmed) 8 Pin Assignment Pin # Pin Description 1 GND 2 GND 3 SHUTDOWN V 4 ADJ 5 V OUT 6 V OUT VIN Note: ...

Page 9

... K = Class K per MIL-PRF-38534 Package Type Lead Flat Pack Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 08/2010 IRUH3301A1AK IRUH3301A1AP Lead Form Options Blank = Lead Form Down (Fig Lead Form Lead Trimmed (Fig. 8) ...

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