CALMIRCO CMPWR161Y

CMPWR161
Micropower, Low Noise 4.75V/150mA LDO Regulator
Features
Product Description
•
The CMPWR161 is a micropower, low noise regulator
designed specifically to filter out noise from a 5V digital
supply making it ideal for noise-sensitive analog applications. The CMPWR161 delivers up to 150mA at a
fixed 4.75V output. A bandgap reference bypass pin
(BYP) provides low noise operation when an external
capacitor is connected between this pin and ground. In
addition, the CMPWR161 features an enable pin (EN)
which allows the regulator to be placed into shutdown
mode supporting low power and battery applications.
The CMOS regulator features low quiescent current
even at full load.
•
•
•
•
•
•
•
•
•
•
Excellent power supply ripple rejection for
VIN-VOUT down to 110mV
Excellent power supply ripple rejection in
audible band (20Hz to 20KHz)
Very low dropout voltage (110mV at 150mA)
Fast transient response minimizes glitches in
audible band.
Low noise in audible band
Guaranteed to deliver 150mA output at
4.75V output
Low quiescent current—300µA typical
"Zero" current shutdown mode
5205 compatible pin-out
5-lead SOT-23 package
Lead-free version available
The CMPWR161 is housed in a 5-pin SOT-23 package,
which is ideal for space critical applications. It is available with optional lead-free finishing.
Applications
•
•
•
•
•
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5V analog supply for audio CODEC
Low noise power supply ideal for audio use
Notebook computers
Sound cards
Motherboards
Set top boxes
Simplified Electrical Schematic
Typical Application Circuit
VIN
CMPWR161
5V
Supply
Voltage
VIN
VOUT
VOUT
+
CIN
1µF
GND
100nF
BYP
GND
EN
[email protected]
150mA
EN
+
VOUT
C
+ OUT
+
BYP
10kHz
VREF
4.75V
10µF
-
10nF
GND
© 2004 California Micro Devices Corp. All rights reserved.
01/14/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846
▲
www.calmicro.com
1
CMPWR161
PACKAGE / PINOUT DIAGRAM
Top View
1
GND
2
EN
3
5
VOUT
4
BYP
161Y/R
VIN
5-pin SOT23
Note: This drawing is not to scale.
PIN DESCRIPTIONS
PIN
NAME
1
VIN
DESCRIPTION
2
GND
3
EN
Enable/shutdown input. When EN is asserted high (VEN ≥ 2V), the regulator is enabled. When EN
is asserted low, the regulator is shutdown (VOUT=0V). This input is compatible with CMOS logic.
4
BYP
Reference bypass pin. This input is used to connect an external capacitor (CBYP) for noise reduction and to maximize power supply ripple rejection. A 10nF capacitor is recommended for this function.
5
VOUT
The regulated voltage output. An output capacitor of 10µF is recommended to provide the necessary phase compensation for the regulator and also minimize any transient disturbances.
Positive input voltage for the regulator. The internal loading on this input is typically 300µA whenever the regulator is enabled and less than 1µA when the regulator is disabled. If this input is
greater than 2 inches from the main input filter, a 1µF ceramic capacitor is recommended for additional filtering.
The negative reference for all voltages.
Ordering Information
PART NUMBERING INFORMATION
Standard Finish
Pins
Package
Ordering Part
Number1
5
SOT23-5
CMPWR161Y
Lead-free Finish
Part Marking
Ordering Part
Number1
Part Marking
161Y
CMPWR161R
161R
Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.
© 2004 California Micro Devices Corp. All rights reserved.
2
430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846
▲
www.calmicro.com
01/14/04
CMPWR161
Specifications
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNITS
+2000
V
[GND - 0.5] to [+6.5]
[GND - 0.5] to [+6.5]
[GND - 0.5] to [VCC+0.5]
V
V
V
-40 to +150
°C
0 to +70
0 to +125
°C
°C
ESD Protection (HBM)
Pin Voltages
VIN
VOUT
VEN
Storage Temperature Range
Operating Temperature Range
Ambient
Junction
STANDARD OPERATING CONDITIONS
PARAMETER
RATING
UNITS
VIN
4.9 to 5.5
V
Ambient Operating Temperature Range
0 to +70
°C
Load Current
0 to 150
mA
COUT
10 +10%
µF
ELECTRICAL OPERATING CHARACTERISTICS(SEE NOTE 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Regulator Output Voltage
0mA < ILOAD < 150mA
4.65
4.75
4.85
V
VR LOAD
Load Regulation
5mA < ILOAD < 150mA, VIN=5.0V
0
mV
VR LINE
Line Regulation xx
ILOAD = 5mA, 4.9V < VCC< to 5.5V
1
mV
Regulator Dropout Voltage
Minimum VIN −VOUT for ILOAD= 150mA
110
250
mV
VIN Current
Shutdown (Regulator Disabled), VOUT
tied to GND
0.01
10
µA
Ground Current
Regulator Enabled, ILOAD= 0mA
300
500
µA
Regulator Enabled, ILOAD= 150mA
300
500
µA
VOUT
VDO
IIN
IGND
RREJ
Ripple Rejection
VIH
EN Input Logic High Threshold
VIL
EN Input Logic Low Threshold
VIN −VOUT = 150mV, ILOAD= 150mA,
CBYP = 10nF
ƒ =100Hz
ƒ =10kHz
xx
xx
42
25
dB
dB
2.0
V
0.5
V
Note 1: Operating Characteristics are over Standard Operating Conditions unless otherwise specified.
© 2004 California Micro Devices Corp. All rights reserved.
01/14/044
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
3
CMPWR161
Performance Information
CMPWR161 Typical DC Characteristics (nominal conditions unless specified otherwise)
Nominal Conditions: CIN=10µF & 0.1µF, COUT=10µF & 0.1µF, CBYP=0.01µF, VIN=5.0V, ILOAD=5mA.
Load Regulation
125
4.80
100
4.78
Output Voltage [V]
Dropout [mV]
Dropout Voltage vs. Load (VOUT=4.70V)
75
50
25
0
4.76
4.74
4.72
4.70
0
50
100
Load Current [mA]
150
0
4.78
4.77
4.77
4.76
4.75
4.74
250
300
4.76
4.75
4.74
4.73
4.73
4.72
4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10
Supply Voltage [V]
4.72
4.75 4.80 4.85 4.90 4.95 5.00 5.05 5.10
Supply Voltage [V]
Supply Current vs. Voltage (EN = VIN)
Ground Current vs. Output Load
500
Ground Current [uA]
500
Supply Current [uA]
100
150 200
Load Current [mA]
Line Regulation (150mA Load)
4.78
Output Voltage [V]
Output Voltage [V]
Line Regulation (5mA Load)
50
400
300
200
100
0
4.75
400
300
200
100
0
5.00
5.25
Supply Voltage [V]
5.50
0
50
100
Load Current [mA]
150
© 2004 California Micro Devices Corp. All rights reserved.
4
430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846
▲
www.calmicro.com
01/14/04
CMPWR161
Performance Information (cont’d)
CMPWR161 Transient Characteristics (nominal conditions unless specified otherwise)
1mA-150mA Load Step (VIN -VOUT=250mV)
4.8V – 5.2V Line Step (5mA Load)
Enable Response (no BYP cap)
Enable Response (CBYP = 10nF)
Disable Response (no BYP cap)
Disable Response (CBYP = 10nF)
EN
© 2004 California Micro Devices Corp. All rights reserved.
01/14/044
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
5
CMPWR161
Performance Information (cont’d)
CMPWR161 Supply Rejection
(nominal conditions with 10mV peak-to-peak sine wave on VIN and ILOAD=150mA)
Ripple Rejection vs. Frequency (VIN-VOUT=250mV)1
70
70
5mA Load
60
50
Ripple Rejection (dB)
Ripple Rejection (dB)
Ripple Rejection vs. Frequency (VIN-VOUT=125mV)1
150mA Load
40
30
20
10
0
100
1000
5mA Load
60
50
40
30
150mA Load
20
10
0
100
10000
1000
100Hz Ripple Rejection vs. Dropout (150mA)
10kHz Ripple Rejection vs. Dropout (150mA)
70
70
60
60
Ripple Rejection (dB)
Ripple Rejection (dB)
10000
Frequency
Frequency
50
40
30
20
10
0
50
40
30
20
10
0
0
50
100
150
200
V IN - V OUT [mV]
250
300
0
100
200
300
VIN - VOUT [mV]
Note:1 VIN – VOUT is measured from the DC operating point on the output to the DC operating point on the input.
© 2004 California Micro Devices Corp. All rights reserved.
6
430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846
▲
www.calmicro.com
01/14/04
CMPWR161
Performance Information (cont’d)
CMPWR161 Typical Thermal Characteristics (nominal conditions unless specified otherwise)
VOUT vs. Temperature (150mA Load)
4.800
4.800
4.775
4.775
VOUT [V]
VOUT [V]
VOUT vs. Temperature (5mA Load)
4.750
4.725
4.750
4.725
4.700
4.700
25
50
75
100
o
Temperature [ C]
125
25
50
75
100
Temperature [o C]
125
Dropout Voltage vs. Load
150
Dropout [mV]
125
70oC
100
75
125oC
50
25oC
25
0
0
50
100
Load Current [mA]
150
© 2004 California Micro Devices Corp. All rights reserved.
01/14/044
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
▲ Tel: 408.263.3214
▲
Fax: 408.263.7846
▲
www.calmicro.com
7
CMPWR161
Mechanical Details
SOT23-5 Mechanical Specifications
Mechanical Package Diagrams
Dimensions for CMPWR161 device packaged in 5-pin
SOT23 package are presented below.
TOP VIEW
For complete information on the SOT23-5 package,
see the California Micro Devices SOT23 Package Information document.
e1
e
5
4
E1 E
1
2
3
PACKAGE DIMENSIONS
Package
SOT23-5 (JEDEC name is MO-178)
Pins
5
Dimensions
Millimeters
Min
Max
Min
Max
--
1.45
--
0.0571
A1
0.00
0.15
0.0000
0.0059
b
0.30
0.50
0.0118
0.0197
c
0.08
0.22
0.0031
0.0087
D
2.75
3.05
0.1083
0.1201
E
2.60
3.00
0.1024
0.1181
E1
1.45
1.75
0.0571
0.0689
e
0.95 BSC
0.0374 BSC
e1
1.90 BSC
0.0748 BSC
L1
# per tape
and reel
0.30
0.60
0.60 REF
SIDE VIEW
Inches
A
L
b
0.0118
D
A
A1
END VIEW
c
0.0236
L1
L
0.0236 REF
3000 pieces
Package Dimensions for SOT23-5.
© 2004 California Micro Devices Corp. All rights reserved.
8
430 N. McCarthy Blvd., Milpitas, CA 95035-5112 ▲ Tel: 408.263.3214
▲ Fax: 408.263.7846
▲
www.calmicro.com
01/14/04