1 A Low Noise, RF LDO Voltage Regulator

NCP59800
1 A Low Noise, RF LDO
Voltage Regulator
The NCP59800 is a family of 1 A low−dropout linear regulators
(LDOs) offering high power−supply ripple rejection (PSRR) and
ultra−low output noise. This series of LDOs uses an advanced
BiCMOS process to achieve very good electrical performance. It is an
ideal choice for noise sensitive Analog RF Front−Ends used in
Telecom Equipment. The NCP59800 is available in the 3 mm x 3 mm
DFN8 package.
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1
Features
DFN8
3 x 3 mm
CASE 506DB
• Operating Input Voltage Range: 2.2 V to 6.0 V
• Output Voltage Range:
♦
•
•
•
•
•
•
•
Fixed VOUT: 0.8 to 5 V (0.1 V steps)
Adjustable VOUT: 0.8 V to 5 V
Quiescent Current typ. 60 mA
Low Dropout: 200 mV typ. at 1 A, VOUT = 2.5 V
±2.5% VOUT Accuracy across Load/Line/Temperature
Stable with Small 4.7 mF Ceramic Capacitors
Very−Low Noise: Typically 15 mVRMS from 100 Hz to 100 kHz
Over−Current and Thermal Shutdown Protection
Available in 3 x 3 mm DFN8 Package
MARKING DIAGRAM
♦
1
A
L
Y
W
G
Typical Applications
PIN CONNECTIONS
NCP59800
VOUT
VIN
OUT
CIN
EN
1 mF
FB
GND
Optional
R1
NR
November, 2015 − Rev. 1
COUT
4.7 mF
OUT
IN
OUT
IN
FB/SNS
NR
GND
EN
(Top View)
10 nF
R2
Figure 1. Typical Application Schematics
Adjustable Voltage Option
© Semiconductor Components Industries, LLC, 2015
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
• Telecom Infrastructure
• Audio
• High−Speed I/F (PLL/VCO)
IN
59800
ADJB
ALYWG
G
3 mm x 3 mm DFN8 0.65 P
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
1
Publication Order Number:
NCP59800/D
NCP59800
Figure 2. Internal Block Diagram − Adjustable Voltage Option
Table 1. PIN FUNCTION DESCRIPTION
Pin No. DFN8
Pin Name
Description
7,8
IN
4, EPAD
GND
Unregulated input supply.
5
EN
Driving the enable pin (EN) high turns on the regulator.
Driving this pin low puts the regulator into shutdown mode.
6
NR
Connect an external capacitor between this pin and ground to reduce the output noise to very
low levels. The capacitor slows down the VOUT ramp as well (soft−start).
Max recommended CNR value is 0.47 mF
3
(Adjustable devices)
FB
This pin is the input to the control loop error amplifier and is used to set the output voltage of
the device.
3
(Fixed Volt devices)
SNS
This pin is the input to the control loop error amplifier and is used to set the output voltage of
the device. This pin is to be joined with OUT at load devices.
1,2
OUT
Regulator output. A 4.7 mF to 100 mF capacitor of any type is required for stability. RESR ≤ 1 W
Ground.
Table 2. ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
IN
6.5
V
Output, Sense Voltage
OUT, SNS
−0.3 to (VIN + 0.3) ≤ 6.5
V
EN
−0.3 to 6.5
V
Enable Input
Other Voltages
FB, NR
−0.3 to 3.6
V
Output Current
IOUT
Internally Limited
mA
TJ(MAX)
150
°C
TSTG
−55 to 150
°C
ESD Capability, Human Body Model (Note 2)
ESDHBM
2000
V
ESD Capability, Machine Model (Note 2)
ESDMM
200
V
Maximum Junction Temperature
Storage Temperature
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)
ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
Latchup Current Maximum Rating tested per JEDEC standard: JESD78
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NCP59800
Table 3. THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, DFN8 3 mm x 3 mm
Thermal Resistance, Junction−to−Air (Note 3)
Symbol
Value
Unit
RqJA
52
°C/W
3. The junction−to−ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC−standard, high−K board, as
specified in JESD51−7, in an environment described in JESD51−2a.
Table 4. ELECTRICAL CHARACTERISTICS Over the operating temperature range of TJ = –40°C to +125°C, VIN = (VOUT(NOM) +
0.5 V) or 2.2 V (whichever is greater), IOUT = 1 mA, VEN = 2.2 V, COUT = 4.7 mF, and CNR = 0.01 mF, unless otherwise noted. NCP59800
Adjustable Option is tested at VOUT = 0.8 V and VOUT = 5.0 V. Typical values are at TJ = +25°C.
Parameter
Test Conditions
Input Voltage Range
Internal Reference
Output Voltage
Symbol
Min
VIN
(VOUT+VDO)
≥ 2.2
VNR
VOUT
Fixed Voltage Options
Adjustable Option
Typ
Max
Unit
6.0
V
0.8
V
0.8
5.0
V
0.8
5.0
V
+2.5
%
Output Voltage Accuracy
(Note 4)
VOUT + 0.5 V ≤ VIN ≤ 6.0 V, VIN ≥ 2.2 V
1 mA ≤ IOUT ≤ 1 A
VOUT
Line Regulation
VOUT + 0.5 V ≤ VIN ≤ 6.0 V, VIN ≥ 2.2 V
IOUT = 1 mA
DVOUT/ DVIN
150
Load Regulation
1 mA ≤ IOUT ≤ 1 A
DVOUT/ DIOUT
2.0
Dropout Voltage
(Note 5)
VOUT + 0.5 V ≤ VIN ≤ 6.0 V, VIN ≥ 2.2 V
IOUT = 500 mA, VFB = GND or VSNS = GND
−2.5
±0.3
VDO
mV/V
mV/mA
250
mV
VOUT + 0.5 V ≤ VIN ≤ 6.0 V, VIN ≥ 2.5 V
IOUT = 750 mA, VFB = GND or VSNS = GND
350
mV
VOUT + 0.5 V ≤ VIN ≤ 6.0 V, VIN ≥ 2.5 V
IOUT = 1 A, VFB = GND or VSNS = GND
500
mV
1.6
2.5
A
60
100
mA
450
mA
0.2
2.0
mA
1.0
mA
Output Current Limit
VOUT = 0.85 VOUT(NOM), VIN ≥ 3.3 V
Ground Pin Current
IOUT = 0.1 mA
ICL
1.1
IGND
IOUT = 1 A
Shutdown Current (IGND)
VEN ≤ 0.4 V, VIN ≥ 2.2 V, RL = 1 kW,
0°C ≤ TJ ≤ 85°C
Feedback Pin Current
VIN = 6.0 V, VFB = 0.8 V (Adjustable Option)
0.02
Sense Pin Current
VIN = 6.0 V, VSNS = VOUT(NOM)
(Fixed Option)
3.0
mA
Power Supply
Rejection Ratio
IOUT = 750 mA,
VOUT = 3.3 V,
VIN = 4.3 V
PSRR
77
63
27
dB
Output Noise Voltage
BW = 100 Hz−100 kHz, IOUT = 100 mA,
CNR = 100 nF, VIN = 4.3 V, VOUT = 3.3 V
VN
15 x VOUT
mVRMS
ISHDN
f = 100 Hz
f = 1 kHz
f = 1 MHz
Enable Input Current
VIN = VEN = 6.0 V
IEN
0.02
Soft−Start Charging Current
VNR = 0.5 V
ISS
7.2
EN Pin Threshold Voltage
EN Input Voltage “H”
VENH
EN Input Voltage “L”
VENL
Start−Up Time
VOUT(NOM) = 3.3 V
VOUT = 0% to 90%
VOUT(NOM)
RL = 3.3kW, COUT=4.7 mF
CNR = 10 nF
CNR = 100 nF
tSTR
1.0
mA
mA
V
1.2
0.4
1.0
ms
10
ms
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. As for NCP59800 (adjustable); it does not include external resistor tolerances and it is not tested at this condition:
VOUT = 0.8 V, 4.5 V ≤ VIN ≤ 6.0 V, and 750 mA ≤ IOUT ≤ 1 A because of power dissipation higher than maximum rating of the package.
5. VDO is not measured for fixed output voltage devices with VOUT < 1.7 V because minimum VIN = 2.2 V.
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NCP59800
Table 4. ELECTRICAL CHARACTERISTICS Over the operating temperature range of TJ = –40°C to +125°C, VIN = (VOUT(NOM) +
0.5 V) or 2.2 V (whichever is greater), IOUT = 1 mA, VEN = 2.2 V, COUT = 4.7 mF, and CNR = 0.01 mF, unless otherwise noted. NCP59800
Adjustable Option is tested at VOUT = 0.8 V and VOUT = 5.0 V. Typical values are at TJ = +25°C.
Parameter
Test Conditions
Undervoltage Lockout
VIN rising, RL = 1 kW
Symbol
Min
Typ
Max
Unit
UVLO
1.86
2.0
2.1
V
UVLO Hysteresis
VIN falling, RL = 1 kW
75
mV
Thermal Shutdown
Shutdown, temperature increasing
TSD_TEMP
160
°C
Reset, temperature decreasing
TSD_HYST
140
Thermal Shutdown Recovery
TJ Operating Range
−40
+125
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. As for NCP59800 (adjustable); it does not include external resistor tolerances and it is not tested at this condition:
VOUT = 0.8 V, 4.5 V ≤ VIN ≤ 6.0 V, and 750 mA ≤ IOUT ≤ 1 A because of power dissipation higher than maximum rating of the package.
5. VDO is not measured for fixed output voltage devices with VOUT < 1.7 V because minimum VIN = 2.2 V.
APPLICATIONS INFORMATION
General Information
low equivalent series resistance (ESR) capacitor across the
input supply near the regulator. The NCP59800 is designed
to be stable with standard ceramic output capacitors of
capacitance values 4.7 mF up to 100 mF. This device is
evaluated using a 4.7 mF/10 V, 10% tolerance, X5R type
Ceramic Capacitors of 0805 size.
X5R− and X7R−type capacitors are highly recommended
because they have minimal variation in value and ESR over
temperature. Maximum ESR should be < 1.0 W.
The NCP59800 regulator is equipped with Noise
Reduction pin (NR) for noise sensitive applications. A noise
reduction capacitor (CNR) at the NR pin bypasses noise
generated by the bandgap reference. This family of
regulators offers sub−bandgap output voltages, current
limit, and thermal protection, and is fully specified from
–40°C to +125°C. assuming resistors with zero error. For the
actual design, pay attention to any resistor error factors.
Figure 3 gives the connections for the adjustable output
version (NCP59800BMNADJTBG).
Startup Response
The CNR serves not only for noise reduction. Slow
ramping of Voltage Reference (adjustable Soft−Start) is
reducing the Inrush Current as well.
NCP59800
(Adjustable VOUT)
VIN
VOUT
IN
CIN
1 mF
OUT
EN
FB
GND
R1
NR
Recommended 1% Feedback Resistor Values for
Frequently Used Nominal Output Voltages
COUT
4.7 mF
VOUT
R1
R2
0.8 V
0 W (Short)
10.0 kW
1.0 V
2.49 kW
10.0 kW
Output Voltage Setting
1.2 V
4.99 kW
10.0 kW
For the adjustable version (NCP59800BMNADJTBG),
the voltage on the FB pin sets the output voltage and is
determined by the values of R1 and R2. The values of R1 and
R2 can be calculated for any voltage using the following
formula:
1.5 V
8.87 kW
10.0 kW
1.8 V
12.5 kW
10.0 kW
2.5 V
21.0 kW
10.0 kW
3.3 V
30.9 kW
10.0 kW
5.0 V
52.3 kW
10.0 kW
Optional
R2
10 nF
Figure 3. Typical Application Schematics
ǒ
V OUT + 0.8 V 1 )
Ǔ
R1
R2
Capacitors Selection
Although an input capacitor is not required for stability, it
is good analog design practice to connect a 0.1 mF to 1.0 mF
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4
NCP59800
Table 5. ORDERING INFORMATION
Device
NCP59800BMNADJTBG
Output Voltage
Marking
Package
Shipping†
ADJ
59800
ADJB
DFN8 3x3
(Pb−Free)
3000/Tape & Reel
†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.
*To order other package and voltage variants, please contact your ON sales representative.
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5
NCP59800
PACKAGE DIMENSIONS
DFN8, 3x3, 0.65P
CASE 506DB
ISSUE O
A
B
D
L
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED TERMINAL
AND IS MEASURED BETWEEN 0.15 AND
0.30mm FROM THE TERMINAL TIP.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
L
L1
PIN ONE
REFERENCE
2X
0.10 C
ÉÉÉ
ÉÉÉ
ÉÉÉ
ÉÉÉ
0.10 C
2X
DETAIL A
ALTERNATE TERMINAL
CONSTRUCTIONS
E
ÉÉÉ
ÉÉÉ
ÇÇÇ
EXPOSED Cu
TOP VIEW
DETAIL B
0.05 C
(A3)
A
ÉÉ
ÉÉ
ÇÇ
MOLD CMPD
DIM
A
A1
A3
b
b1
D
D2
E
E2
e
e1
L
L1
A3
A1
DETAIL B
ALTERNATE
CONSTRUCTIONS
0.05 C
NOTE 4
A1
SIDE VIEW
C
SEATING
PLANE
RECOMMENDED
SOLDERING FOOTPRINT*
D2
DETAIL A
4
1
L
8X
MILLIMETERS
MIN
MAX
0.80
1.00
0.00
0.05
0.20 REF
0.25
0.35
0.20
0.30
3.00 BSC
1.65
1.85
3.00 BSC
1.40
1.60
0.65 BSC
0.65 REF
0.30
0.50
0.00
0.15
3.30
2.05
8X
0.63
PACKAGE
OUTLINE
E2
e1
4X
1.64 3.30
b1
8
5
e/2
e
8X
0.65
PITCH
b
0.10 C A B
0.05 C
1
0.65
PITCH
NOTE 3
BOTTOM VIEW
12X
0.40
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and the
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries.
SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed
at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation
or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets
and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each
customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended,
or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which
the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or
unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
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copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
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Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
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Phone: 421 33 790 2910
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Phone: 81−3−5817−1050
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For additional information, please contact your local
Sales Representative
NCP59800/D
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