IRUH33PA13B20 [INFINEON]
Ultra Low Dropout Positive Adjustable Linear Regulator; 超低压差正可调线性稳压器
| 型号： | IRUH33PA13B20 |
| 厂家： | 
Infineon |
| 描述： | Ultra Low Dropout Positive Adjustable Linear Regulator |
| 文件： | 总7页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-97029
Ultra Low Dropout
Positive Adjustable Linear Regulator
IRUH33PA13B20
+3.3Vin at 3.0A
Product Summary
I
V
V
out
Part Number
Dropout
O
in
1.265V To (V - 0.4V)
IN
IRUH33PA13B20
0.4V
3.0A
3.3V
MO-078AA
Features:
n
Total dose to 200Krad(Si) and low dose
capability to 30Krad(Si) allows use in
space applications
The IRUH33PA13B20 is a space qualified, ultra low
dropout linear regulator designed specifically for space
applications. This product has been characterized to a total
ionizing dose of 200Krad(Si) per MIL-STD-883, Method
1019 at 200Krad at high dose and 100Krad at low dose
rates under biased and unbiased conditions to account for
ELDRS effects in bipolar devices. The ultra low dropout
voltage of 0.4V @ 3A makes the part particularly useful for
applications requiring low noise and higher efficiency.
n
n
Low noise, higher efficiency
Ultra low dropout voltage of 0.4V@ 3A out
significantly reduces power consumption
Remote shutdown permits power
sequencing to be easily implemented
Hermetic MO-078AA (TO-258AA)
pack ensures higher reliability
n
n
n
Space Level Screened
Absolute Maximum Ratings
Parameter
Symbol
Value
3.5
Units
A
I
O
Output Current
Input Voltage
V
7.0
IN
V
V
OUT
Output Voltage
1.265V To (V - 0.4V)
IN
Power Dissipation, T = 25°C
C
P
19
8.5
W
TOT
R
THJC
Thermal Resistance, Junction to Case
Operating Temperature Range
Storage Temperature Range
Lead Temperature
°C/W
T
J
-55 to +125
-65 to +150
300
T
S
T
L
°C
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1
03/22/06
IRUH33PA13B20
Pre-Radiation
PRELIMINARY
Electrical Characteristics @TC = 25°C (Unless Otherwise Specified)
Parameter
Test Conditions
Symbol
Min. Typ. Max. Units
I
O
= 3.0A
V
2.9
-
6.5
Input Voltage Range - Operating
Reference Voltage
IN
V
V
1.252 1.265 1.278
REF
≤
≤
3.8, I = 50mA
2.9
V
IN
V
Line Regulation
-0.25
-1.0
-
-
+0.25
1.0
0.4
-
% / V
% / A
V
O
LINE
V
= 3.3V, 50mA ≤ I
= 3.0A, V
≤ 3.0A
V
Load Regulation
-
IN
OUT
LOAD
I
O
= 2.5V
V
Dropout Voltage
-
OUT
DROP
V
= 3.3V, Overcurrent Latchup
I
Current Limit
3.0
65
-
-
A
IN
LATCH
F = 120Hz, I = 50mA
Ripple Rejection
-
200
-
-
dB
O
V
= 5.0V
I
Shutdown Source Current
Shutdown Pin Threshold
Output Voltage at Shutdown
-
µ
A
SHDN
SHDN
µ
I
= 200 A
V
SHDN
1.0
1.6
+0.1
SOURCE
V
V
= 3.3V, I = 50mA, V
O
= +5.0V V
SHDN OUT (SHDN)
-0.1
-
IN
Pre-Radiation
Electrical Characteristics @TC = -55°C to +125°C
Parameter
Test Conditions
Symbol
Min. Typ. Max. Units
I
O
= 3.0A
V
2.9
-
6.5
Input Voltage Range - Operating
Reference Voltage
IN
V
V
1.225 1.265 1.305
REF
≤
≤
3.8, I = 50mA
2.9
V
IN
V
Line Regulation
-0.5
-2.0
-
-
+0.5
2.0
0.4
-
% / V
% / A
V
O
LINE
V
= 3.3V, 50mA ≤ I
= 3.0A, V
≤ 3.0A
V
Load Regulation
-
IN
OUT
LOAD
I
O
= 2.5V
V
Dropout Voltage
-
OUT
DROP
V
= 3.3V, Overcurrent Latchup
I
Current Limit
3.0
65
-
-
A
IN
LATCH
F = 120Hz, I = 50mA
Ripple Rejection
-
200
-
-
dB
O
V
= 5.0V
I
Shutdown Source Current
Shutdown Pin Threshold
Output Voltage at Shutdown
-
µ
A
SHDN
SHDN
µ
I
= 200 A
V
SHDN
1.0
1.6
+0.1
SOURCE
V
V
= 3.3V, I = 50mA, V
O
= +5.0V V
SHDN OUT (SHDN)
-0.1
-
IN
For notes, please refer to page 3
2
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PRELIMINARY
IRUH33PA13B20
Post-Radiation
Electrical Characteristics @TC = 25°C (Unless Otherwise Specified)
Parameter
Line Regulation
Test Conditions
Symbol
Min. Typ. Max. Units
2.9V ≤ V ≤ 3.8V, I = 50mA
V
-0.5
-2.0
3.0
40
-
-
-
-
+0.5
2.0
-
% / V
% / A
A
IN
O
LINE
≤
≤
3.0A
V
V
= 3.3V, 50mA
I
V
Load Regulation
IN
IN
OUT
LOAD
= 3.3V
I
Current Limit
MAX
F = 120Hz, I = 50mA
Ripple Rejection
-
dB
V
O
Output Voltage at Shutdown
V
= 3.3V, I = 50mA, V
= +5.0V V
-0.1
-
+0.1
IN
O
SHDN OUT (SHDN)
Notes for Electrical Characteristic Tables
VShutdown ramp from 0.8V to 4.8V, output monitored for a 100mV drop below the nominal specification for Vout
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3
IRUH33PA13B20
PRELIMINARY
Pre-Radiation Characteristics
3A
120
100
80
60
40
20
0
1.5A
.75A
.50A
100
1,000
10,000
100,000
1,000,000
Frequency (Hz)
Fig 1. Ripple Rejection Vs Frequency
Post-Radiation Testing and Characterization is in process
Radiation Performance Characteristics
Test
Conditions
Min
Max
Unit
MIL-STD-883, Method 1019
Total Ionizing Dose (Gamma)
200
Krads (Si)
Operating Bias applied during exposure
Vin = 6.8V, Vout = 2.5V, Io = 10mA
Neutrons/cm2
Neutron Fluence
MIL-STD-883, Method 1017
1.00E+10 1.00E+12
Single Event effects
SEL, SET
Heavy Ions (LET)
Operating Bias applied during exposure
Vin = 2.9V to 7.0V for SEL
Vin = 2.9V to 3.7V for SET
MeV*cm2/mg
84
4
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PRELIMINARY
IRUH33PA13B20
ADJUST
RESISTOR
Vin
Vout
Vout
Vin
R1
IRHU33PA13B20
100uF 16V
Tantalum
SHDN
GND
1.0uF X10
CeramicX7R
1000uF 6.3V
Low ESR Tantalum
Ground
Vout = Vref X ( 1+ R1/1000 )
Fig 2. Typical Application Circuit
Input Capacitance
Recommended input capacitance for a generic application is a 100µF, 16V tantalum capacitor. However, the
input capacitance is not critical to the stability of the regulator and is therefore application dependant. In
designs with a clean bus voltage that is situated close to the input of the regulator, only a small ceramic
capacitor will be needed to decouple high frequency noise. On the other hand , in designs with a noisy bus,
a larger capacitor will be needed. Care should be taken to ensure that the input to the regulator is sufficiently
free of noise and disturbances.
Output Capacitance
Like most ultra low dropout voltage regulators, IRUH33PA13B20 requires the use of output capacitors as
part of the device frequency compensation. The device requires a minimum of 220µF tantalum to ensure
stability.
Many different types of capacitor are available and have widely varying characteristics. These capacitors
differ in capacitor tolerance, equivalent series resistance (ESR), equivalent series inductance and capacitance
temperature coefficient. The IRUH33PA13B20 frequency compensation optimizes frequency response with
low ESR capacitors. In general, use capacitors with an ESR of less than 50mΩ for heavy load applications.
High quality bypass capacitors must be also be used to limit the high frequency noise generated by the load.
Multiple small ceramic capacitors are typically required to limit parasitic inductance (ESL) and ESR in the
capacitors to acceptable levels.
The upper limit of the capacitance is governed by the delayed over-current latch function of the regulator. The
regulator has a protection circuit that will latch the device off in the event of a short circuit. However, since it is
known that the regulator will draw a large in-rush current upon startup, the latch-off is delayed by about 10ms
to allow the outout capacitors to charge to a steady state without shutting down. During this period, the
regulator will have an output current at its maximum of around 5A typical. Therefore, the maximum output
capacitance can be as high as 20,000µF without causing device to latch-off during start-up.
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5
IRUH33PA13B20
PRELIMINARY
Vout
Vin
Drive
Gnd
Adjust
Shutdown
Ground
Fig 3. Simplified Schematic Circuit
Space Level Screening Requirements
TEST/INSPECTION
SCREENING LEVEL
MIL-STD-883
SPACE
METHOD
Pre Seal Burn-In
Nondestructive Bond Pull
Internal Visual
Temperature Cycle
Constant Acceleration
Mechanical Shock
PIND
Optional
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
1030
2023
2017
1010
2001
2002
2020
Pre Burn-In-Electrical
Burn-In
1015
Final Electrical
Seal
1014
2012
2009
Radiographic
External Visual
Note:
International Rectifier currently doesnot have a DSCC certified Radiation Hardness Assurance Program
6
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PRELIMINARY
IRUH33PA13B20
Case Outline and Dimensions - MO-078AA
Pin Assignment
Pin #
Pin Description
V
IN
1
2
3
GND
V
OUT
4
5
SHUTDOWN
ADJUST
Notes:
1) All dimensions are in inches
Part Numbering Nomenclature
IR 33
U
H
P
A1
3
B
20
P
Screening
Linear Regulator Module
P = Unscreened, 25°C
Electrical Test ( Not for Qual)
K = Space Level Screening
U = Ultra Low Dropout Regulator
Radiation Hardening
H = RAD Hardened or Tolerant
RAD Level
20 = 200KRads
Input Voltage
33 = 3.3V
Package Code
B = MO-078AA
Polarity
P = Positive
Maximum Output Current
3 = 3 Amp
Output Voltage
A1 = Adjustable 1.26V to 3.2V
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
IR LEOMINSTER : 205 Crawford St., Leominster, Massachusetts 01453, USA Tel: (978) 534-5776
TAC Fax: (310) 252-7903
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 03/06
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7
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