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CS8481YDPR5

P1-P3P4-P6
Semiconductor Components Industries, LLC, 2004
January, 2004 − Rev. 9
1 Publication Order Number:
CS8481/D
CS8481
3.3 V/250 mA, 5.0 V/100 mA
Micropower Low Dropout
Regulator with ENABLE
The CS8481 is a precision, dual Micropower linear voltage
regulator. The switched 3.3 V primary output (V
OUT1
) supplies up to
250 mA while the secondary 5.0 V (V
OUT2
) is capable of supplying
100 mA. Both outputs have a maximum dropout voltage of 600 mV
and low reverse current. Quiescent current drain is typically 150 A
when supplying 100 A from each output.
The ENABLE input provides logic level control of the primary
output. With the primary output disabled, quiescent current drain is
typically 100 A when supplying 100 A from the secondary output.
The CS8481 is extremely robust with protection provided for
reverse battery, short circuit, overvoltage, and overtemperature on
both outputs.
The CS8481 is available in a D
2
PAK−5.
Features
• 3.3 V/250 mA Primary Output
• 5.0 V/100 mA Secondary Output
• 3.0% Tolerance, Both Outputs
• ON/OFF Control for Primary Output
• Low Quiescent Current Drain (100 A V
OUT2
)
• Low Reverse Current
• Protection Features
− Reverse Battery (−15 V)
− 74 V Peak Transient Voltage
− Short Circuit
− Overtemperature
− Overvoltage (34 V)
PIN CONNECTIONS AND
MARKING DIAGRAM
Device Package Shipping
†
ORDERING INFORMATION*
50 Units/RailCS8481YDP5 D
2
PAK−5
750 Tape & ReelCS8481YDPR5 D2PAK−5
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
*Consult your local sales representative for SO−8,
SO−16, DIP−8, DIP−16, TO−220−5, and D
2
PAK−7
packaging options.
D
2
PAK−5
DP SUFFIX
CASE 936AC
1
5
CS8481
AWLYWW
1
Tab = GND
Pin 1. V
IN
2. V
OUT1
3. GND
4. V
OUT2
5. ENABLE
http://onsemi.com
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
CS8481
http://onsemi.com
2
Figure 1. Block Diagram
+
−
+
−
Primary Output
Current Limit
+
−
Secondary Output
Current Limit
Overvoltage
Shutdown
Bandgap
Reference
Thermal
Shutdown
GND
Pwr GND
ENABLE
V
IN
V
OUT1
(3.3 V)
V
OUT1
SENSE
V
OUT2
(5.0 V)
V
OUT2
SENSE
MAXIMUM RATINGS*
Rating Value Unit
Input Voltage (V
IN
) Operating Range
Reverse Battery
Peak Transient Voltage (60 V Load Dump @ 14 V V
IN
)
30
−15
74
V
V
V
ENABLE 10 V
Power Dissipation Internally Limited −
Maximum Junction Temperature −40 to +150 °C
Storage Temperature Range −55 to +150 °C
Electrostatic Discharge (Human Body Model) 4.0 kV
Lead Temperature Soldering Reflow (SMD styles only) (Note 1) 230 peak °C
1. 60 second maximum above 183°C
*The maximum package power dissipation must be observed.
CS8481
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS: (6.0 V ≤ V
IN
≤ 26 V, I
OUT1
= I
OUT2
= 100 A, −40°C ≤ T
A
≤ 125°C,
−40°C ≤ T
C
≤ 125°C; unless otherwise specified.)
Characteristic
Test Conditions Min Typ Max Unit
Primary Output Stage (V
OUT1
)
Output Voltage, V
OUT1
100 A ≤ I
OUT1
≤ 250 mA 3.2 3.3 3.4 V
Line Regulation 6.0 V ≤ V
IN
≤ 26 V − 5.0 50 mV
Load Regulation 1.0 mA ≤ I
OUT1
≤ 250 mA, V
IN
= 14 V − 5.0 50 mV
Quiescent Current ENABLE = HIGH, V
IN
= 16V, I
OUT1
= 250 mA − 22 50 mA
Ripple Rejection f = 120 Hz, I
OUT1
= 125 mA, 7.0 V ≤ V
IN
≤ 17 V 60 70 − dB
Current Limit 9.0 V ≤ V
IN
≤ 26 V 260 400 − mA
Short Circuit Current Limit V
OUT1
= 0 V, V
IN
= 16 V 25 − − mA
Reverse Current V
OUT1
= 3.3 V, V
IN
= 0 V − 100 1500 A
Secondary Output (V
OUT2
)
Output Voltage, (V
OUT2
) 100 A ≤ I
OUT2
≤ 100 mA 4.85 5.00 5.15 V
Dropout Voltage I
OUT2
= 100 mA
I
OUT2
= 100 A
−
400
100
600
150
mV
mV
Line Regulation 6.0 V ≤ V
IN
≤ 26 V − 5.0 50 mV
Load Regulation 100 A ≤ I
OUT2
≤ 100 mA, V
IN
= 14 V − 5.0 50 mV
Quiescent Current ENABLE = LOW, V
IN
= 12.8 V
ENABLE = HIGH, V
IN
= 16 V, I
OUT2
= 100 mA
−
−
100
8.0
150
30
A
mA
Ripple Rejection f = 120 Hz; I
OUT2
= 10 mA, 7.0 V ≤ V
IN
≤ 17 V 60 70 − dB
Current Limit 9.0 V ≤ V
IN
≤ 26 V 105 200 − mA
Short Circuit Current Limit V
OUT2
= 0 V, V
IN
= 16 V, I
OUT1
= 0 A 25 − − mA
Reverse Current V
OUT2
= 5.0 V, V
IN
= 0 V − 100 250 A
ENABLE Function (ENABLE)
Input Threshold ENABLE = LOW, 6.0 V ≤ V
IN
≤ 26 V
ENABLE = HIGH, 6.0 V ≤ V
IN
≤ 26 V
−
2.0
1.2
1.2
0.8
−
V
V
Input Bias Current 0 V ≤ V
ENABLE
≤ 5.0 V −2.0 0 2.0 A
Protection Circuits
Overtemperature Threshold
Note 2 150 180 − °C
Overvoltage Shutdown − 30 34 38 V
2. Guaranteed by Design.
PACKAGE PIN DESCRIPTION
PACKAGE LEAD #
D
2
PAK−5
LEAD SYMBOL FUNCTION
1 V
IN
Supply voltage to IC, usually direct from battery.
2 V
OUT1
3.3 V regulated output which is activated by ENABLE input.
3 GND Ground connection.
4 V
OUT2
Standby output 5.0 V, 100 mA capability; always on.
5 ENABLE CMOS compatible input lead; switches V
OUT1
. When ENABLE
is high, V
OUT1
is active.
P1-P3P4-P6

CS8481YDPR5

Mfr. #:
Buy CS8481YDPR5
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR 3.3V/5V D2PAK-5
Lifecycle:
New from this manufacturer.
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