IRUH33P183B1M [INFINEON]
Ultra Low Dropout Positive Fixed Linear Regulator; 超低压差正，固定式线性稳压器
| 型号： | IRUH33P183B1M |
| 厂家： | 
Infineon |
| 描述： | Ultra Low Dropout Positive Fixed Linear Regulator |
| 文件： | 总7页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-97021
Ultra Low Dropout
IRUH33P183B1M
Positive Fixed Linear Regulator
+3.3Vin to 1.8Vout at 3.0A
Product Summary
I
V
V
out
Part Number
Dropout
O
in
IRUH33P183B1M
1.1V
3.0A
3.3V
1.8V
MO-078AA
Features:
n
Total dose to 1.0 Mrad(Si) and low dose
capability to 500 Krad(Si) allows use in
space applications
The IRUH33P183B1M 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 1.0 Mrad(Si) per MIL-STD-883, Method
1019 at both high and low dose rates under biased and
unbiased conditions to account for ELDRS effects in bipolar
devices. The ultra low dropout voltage of 1.1V @ 3A makes
the part particularly useful for applications requiring low
noise and higher efficiency.
n
Single Event latchup Immune
LET = 84 MeV/(mg/cm2)
Fluency = 1 x 109 Ions/cm2
n
n
Low noise, higher efficiency
Ultra low dropout voltage of 1.1V@ 3A out
significantly reduces power consumption
Remote shutdown permits power
sequencing to be easily implemented
Hermetic MO-078AA (TO-258AA)
pack ensures higher reliability
Space Level Screened
n
n
n
n
This part is also available in 8-Lead Flat Pack
Package as IRUH33P183A1M
Absolute Maximum Ratings
Parameter
Symbol
Value
3.5
Units
I
A
Output Current
Input Voltage
O
V
7.0
V
W
IN
Power Dissipation, T = 25°C
C
P
19
TOT
R
Thermal Resistance, Junction to Case
Operating Temperature Range
Storage Temperature Range
Lead Temperature
6.5
°C/W
THJC
T
J
-55 to +125
-65 to +150
300
T
S
°C
T
L
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1
11/14/05
IRUH33P183B1M
Pre-Radiation
Electrical Characteristics @TC = 25°C (Unless Otherwise Specified)
Parameter
Test Conditions
Symbol
Min. Typ. Max. Units
V
V
V
V
V
I
= 3.3V, I = 1.5A
1.782
1.71
1.71
1.71
1.71
2.9
-
1.8
1.818
1.89
1.89
1.89
1.89
6.5
1.1
-
IN
IN
IN
IN
IN
O
= 2.97V, I = 50mA
O
-
= 2.97V, I = 3.0A
O
-
Output Voltage
V
OUT
= 3.63V, I = 50mA
O
-
V
= 3.63V, I = 3.0A
O
-
= 3.0A
V
-
Input Voltage Range - Operating
Dropout Voltage
O
IN
I
= 3.0A, V
= 2.5V
V
-
O
OUT
DROP
V
IN
= 5.0V, Overcurrent Latchup
I
Current Limit
3.0
65
-
A
LATCH
F = 120Hz, I = 50mA
Ripple Rejection
-
200
-
-
dB
µA
O
V
= 5.0V
I
Shutdown Source Current
Shutdown Pin Threshold
-
-
SHDN
SHDN
V
= 5.0V
V
SHDN
1.0
1.6
+0.1
IN
IN
V
Output Voltage at Shutdown
V
= 3.3V, I = 50mA, V
O
= +5.0V V
OUT (SHDN)
-0.1
-
SHDN
Pre-Radiation
Electrical Characteristics @TC = -55°C to 125°C (Unless Otherwise Specified)
Parameter
Test Conditions
Symbol
Min. Typ. Max. Units
V
V
V
V
V
I
= 3.3V, I = 1.5A
1.71
1.71
1.71
1.71
1.71
2.9
-
1.8
1.89
1.89
1.89
1.89
1.89
6.5
1.1
-
IN
IN
IN
IN
IN
O
= 2.97V, I = 50mA
O
-
= 2.97V, I = 3.0A
O
-
Output Voltage
V
OUT
= 3.63V, I = 50mA
O
-
V
= 3.63V, I = 3.0A
O
-
= 3.0A
V
-
Input Voltage Range - Operating
Dropout Voltage
O
IN
I
= 3.0A, V
= 2.5V
V
-
O
OUT
DROP
V
IN
= 5.0V, Overcurrent Latchup
I
Current Limit
3.0
65
-
A
LATCH
F = 120Hz, I = 50mA
Ripple Rejection
-
200
-
-
dB
µA
O
V
= 5.0V
I
Shutdown Source Current
Shutdown Pin Threshold
-
-
SHDN
SHDN
V
= 5.0V
V
SHDN
1.0
1.6
+0.1
IN
IN
V
Output Voltage at Shutdown
V
= 3.3V, I = 50mA, V
O
= +5.0V V
OUT (SHDN)
-0.1
-
SHDN
For notes, please refer to page 3
2
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IRUH33P183B1M
Post-Radiation
Electrical Characteristics @TC = 25°C (Unless Otherwise Specified)
Parameter
Test Conditions
Symbol
Min. Typ. Max. Units
V
V
V
V
V
V
= 3.3V, I = 1.5A
1.71
1.71
1.71
1.71
1.71
3.0
1.8
1.89
1.89
1.89
1.89
1.89
-
IN
IN
IN
IN
IN
IN
O
= 2.97V, I = 50mA
O
-
-
-
-
-
-
= 2.97V, I = 3.0A
O
Output Voltage
V
V
OUT
= 3.63V, I = 50mA
O
= 3.63V, I = 3.0A
O
= 3.3V
I
Current Limit
A
dB
V
MAX
F = 120Hz, I = 50mA
Ripple Rejection
40
-
O
Output Voltage at Shutdown
V
IN
= 5.0V, I = 50mA, V
= +5.0V V
SHDN OUT (SHDN)
-0.1
-
+0.1
O
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
IRUH33P183B1M
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
Radiation Performance Characteristics
Test
Conditions
Min
Typ
Unit
MIL-STD-883, Method 1019
Total Ionizing Dose (Gamma)
1,000
Krads (Si)
Neutrons/cm2
MeV*cm2/mg
Operating Bias applied during exposure
Full Rated Load, Vin=3.3V
Neutron Fluence
MIL-STD-883, Method 1017
1.00E+09 1.00E+13
Single Event effects
Heavy Ions (LET)
84
SEU, SEL, SEGR, SEB
Operating Bias applied during exposure
Full Rated Load, Vin=3.3 V
4
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IRUH33P183B1M
Vout
Vin
Vout
Vin
IRUH33P183B1M
100uF 16V
Tantalum
SHDN
GND
1.0uFx10
Ceramic X 7R
1000uF 6.3V
Low ESR Tantalum
Ground
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, IRUH33P183B1M 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 IRUH33P183B1M 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
IRUH33P183B1M
Vout
Vin
Drive
Gnd
Shutdown
Ground
Fig 3. Simplified Schematic Circuit
Space Level Screening Requirements
TEST/INSPECTION
SCREENING LEVEL
SPACE
MIL-STD-883
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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IRUH33P183B1M
Case Outline and Dimensions - MO-078AA
Pin Assignment
Pin # Pin Description
V
in
1
2
3
GND
V
out
4
5
SHUTDOWN
N/C
Note:
1) All dimensions are in inches
Part Numbering Nomenclature
IR 33
U
H
P
18
3
B
1M
P
Screening
P = Unscreened, 25°C
Linear Regulator Module
U = Ultra Low Dropout Regulator
Electrical Test ( Not for Qual)
K = Space Level Screening
Radiation Hardening
H = RAD Hardened or Tolerant
RAD Level
1M = 1M Rads
Input Voltage
33 = 3.3V
Package Code
B = MO-078AA
Polarity
P = Positive
Maximum Output Current
3 = 3 Amp
Output Voltage
18 = 1.8V
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. 11/2005
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7
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