OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

ILC7280AR8585X

P1-P3P4-P6P7-P9
www.fairchildsemi.com
REV. 1.0.5 6/3/02
Features
• Low Power Consumption
• 150mV Dropout at 150mA
• 1% Output Voltage Accuracy
• Requires only 0.47µF Output Capacitor
• Only 135µA Ground Current at 150mA load
• 50µV
RMS
Noise at BW = 300Hz to 50kHz
• Excellent Line and Load Transient Response
• Over Current/Over Temperature Protection
• 8-pin MSOP package
• Voltage Options Available: 3.3/3.3V, 3.0/3.0V, 3.0/2.8V,
3.0/2.5V, 2.8/2.8V, 2.85/2.85V. Other Custom Values
available upon request.
• Minimum External Components
Applications
• Cellular Phones, pagers and wireless headsets
• Palmtops, organizers, PDAs and portable electronics
• Battery powered portable appliances and equipment
• Remote data accumulation and instrumentation
General Description
The ILC7280 is two independent 150mA low dropout
(LDO)voltage regulators in an 8-pin MSOP package. Each
regulator output is independently short circuit protected and
has independent enable lines. The device offers a unique
combination of low dropout voltage and low quiescent
current offered by CMOS technology as well as the low
noise and good ripple rejection characteristics of bipolar
LDO regulators.
The ILC7280 is available in a space saving MSOP-8
package.
Block Diagram
Current Limit
Thermal Shutdown
V
INA
V
OUTA
+
–
Bandgap
Reference
Current Limit
Thermal Shutdown
+
–
EN
A
*C
NOISE
*Optional
GND
EN
B
V
INB
V
OUTB
ILC7280
Micropower Dual 150mA CMOS RF LDO™
Regulators
ILC7280 PRODUCT SPECIFICATION
2
REV. 1.0.5 6/3/02
Pin Configuration
Pin Definitions
*If maximum current is required from each regulator, then connect both pin 6 and 8 to power supply.
Absolute Maximum Ratings
Absolute maximum ratings are the values beyond which the device may be damaged or have its useful life
impaired. Functional operation under these conditions is not implied.
Recommended Operating Conditions
Pin Number Pin Name Pin Function Description
1
V
OUTA
Output A.Regulated voltage
2 GND Ground of the IC
3 V
OUTB
Output B.Regulated voltage
4 C
NOISE
Optional bypass for noise reduction.
5 EN
A
Digital Input Enable for regulator A
6 V
INB
Supply input B.Internally connected to pin 8*
7 EN
B
Digital Input Enable for regulator B
8 V
INA
Supply input B.Internally connected to pin 6*
Parameter Min. Max. Units
Supply Voltage: V
INA
or V
INB
to GND
10 V
Voltage on all other pin to GND –0.3 V
IN
+ 0.3
V
Junction Temperature –
65
150
°C
Storage Temperature –
65
150
°C
Lead Soldering Temperature, 10 seconds 300 °C
Power Dissipation at 85°C 315 mW
Parameter Conditions Min. Typ. Max. Units
Supply Voltage V
DD
V
INA
or V
INB
to GND V
OUT
+ V
DO
V
OUT
+ 1V 9 V
Output Current I
OUT
150 mA
Ambient Operating Temperature -40 85
°
C
1
MSOP-8
V
OUTA
8
V
INA
2
GND
7
EN
A
3
V
OUTB
6
V
INB
4
C
NOISE
(Optional)
5
EN
B
PRODUCT SPECIFICATION ILC7280
REV. 1.0.5 6/3/02
3
Electrical Specifications
(All values are for each regulator at V
IN
=V
OUTnom
+1V, I
OUT
=1mA, C
OUT
=0.47µF, C
N
=0, V
EN
=2V and T
A
= +25°C
using Test circuit in Figure 1, unless otherwise noted.)
Figure 1. Test Circuit
Parameter Conditions Min. Typ. Max. Units
Output Voltage 0.99
V
OUTnom
V
OUTnom
1.01
V
OUTnom
V
Dropout Voltage I
OUT
= 10mA 5.5 7 mV
I
OUT
= 150mA 155 180
Line Regulation V
OUT
+ 1V
≤
V
IN
≤
V
OUT
+ 2V 0.2 0.5 %/V
Load Regulation I
OUT
: 1mA to 150mA 0.3 0.75 %
Ground Pin Current
One Regulator ON
I
OUT
= 0mA 80 105
µ
A
I
OUT
= 10mA 85 110
I
OUT
= 150mA 95 125
Ground Pin Current
Both Regulators ON
I
OUT
= 0mA 120
µ
A
I
OUT
= 10mA 125
I
OUT
= 150mA 135
OFF State Current V
EN
= 0V 150 220
nA
Enable Input Current V
OUT
= 2V 4 10
µ
A
V
OUT
= 0.6 0.2 0.5
Shut Down Input Voltage High = Regulator ON 2 V
Low = Regulator OFF 0.6
Output Voltage Noise C
OUT
= 2.2µF, C
N
=1nF,
I
OUT
= 10mA, BW = 300Hz to 50kHz
50
µ
Vrms
Ripple Rejection C
OUT
= 4.7µF, f = 120Hz 50 dB
C
OUT
= 4.7µF, f = 1KHz 45
Dynamic Line Regulation V
IN
: V
OUT
+ 1V to V
OUT
+ 2V
dV/dt = 1V/µS
20 mV
Dynamic Load Regulation I
OUT
: 0 to 150mA
DI/dt = 1A/µS
10 mV
C
OUT
V
OUTA
V
INA
C
IN
C
OUT
C
N
V
IN
V
OUTB
EN
B
EN
A
V
INB
P1-P3P4-P6P7-P9

ILC7280AR8585X

Mfr. #:
Buy ILC7280AR8585X
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR 2.85V/2.85V 8MSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet