NCP137BFCTADJT2G [ONSEMI]
700 mA, Very Low Dropout Bias Rail CMOS Voltage Regulator;
| 型号： | NCP137BFCTADJT2G |
| 厂家： | 
ONSEMI |
| 描述： | 700 mA, Very Low Dropout Bias Rail CMOS Voltage Regulator |
| 文件： | 总9页 (文件大小：181K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCP137
700 mA, Very Low Dropout
Bias Rail CMOS Voltage
Regulator
The NCP137 is a 700 mA VLDO equipped with NMOS pass
transistor and a separate bias supply voltage (V ). The device
BIAS
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provides very stable, accurate output voltage with low noise suitable
for space constrained, noise sensitive applications. In order to
optimize performance for battery operated portable applications, the
MARKING
DIAGRAM
NCP137 features low I consumption. The WLCSP6 1.2 mm x
Q
0.8 mm Chip Scale package is optimized for use in space constrained
applications.
WLCSP6, 1.2x0.8
CASE 567MV
XXMG
Features
XX = Specific Device Code
• Input Voltage Range: V
to 5.5 V
OUT
M
= Month Code
• Bias Voltage Range: 2.5 V to 5.5 V
G
= Pb−Free Package
• Adjustable and Fixed Voltage Version Available
• Output Voltage Range: 0.4 V to 1.8 V (Fixed) and
PIN CONNECTIONS
Output Voltage Range: 0.5 V to 3.0 V (Adjustable)
1
2
•
1% Accuracy over Temperature, 0.5% V
@ 25°C
OUT
• Ultra−Low Dropout: Typ. 40 mV at 700 mA
• Very Low Bias Input Current of Typ. 35 mA
A
B
C
VOUT
VIN
• Very Low Bias Input Current in Disable Mode: Typ. 0.5 mA
• Logic Level Enable Input for ON/OFF Control
• Output Active Discharge Option Available
• Stable with a 4.7 mF Ceramic Capacitor
• Available in WLCSP6 − 1.2 mm x 0.8 mm, 0.4 mm pitch Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
SNS/FB
GND
EN
VBIAS
Typical Applications
• Battery−powered Equipment
• Smartphones, Tablets
• Cameras, DVRs, STB and Camcorders
Top View
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 7 of this data sheet.
V
V
BIAS
BIAS
≥2.5 V
≥2.5 V
V
V
OUT
0.9 V up to 700 mA
NCP137 − ADJ
NCP137
GND
1 mF
1 mF
OUT
0.9 V up to 700 mA
BIAS
BIAS
IN
OUT
FB
OUT
SNS
V
V
IN
1.02 V
IN
R1
R2
IN
4.7 mF
10 mF
1.02 V
EN
EN
4.7 mF
4.7 mF
GND
V
V
EN
EN
Figure 1. Typical Application Schematics
© Semiconductor Components Industries, LLC, 2016
1
Publication Order Number:
September, 2018 − Rev. 5
NCP137/D
NCP137
CURRENT
LIMIT
OUT
IN
ENABLE
BLOCK
150 W
EN
*Active
DISCHARGE
BIAS
UVLO
0.50 V
VOLTAGE
+
THERMAL
LIMIT
REFERENCE
−
FB
GND
*Active output discharge function is present only in NCP137A option devices.
Figure 2. Simplified Schematic Block Diagram − Adjustable Version
CURRENT
LIMIT
OUT
IN
ENABLE
BLOCK
150 W
EN
*Active
DISCHARGE
BIAS
UVLO
VOLTAGE
+
REFERENCE
THERMAL
LIMIT
−
SNS
GND
*Active output discharge function is present only in NCP137A option devices.
Figure 3. Simplified Schematic Block Diagram − Fixed Version
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2
NCP137
PIN FUNCTION DESCRIPTION
Pin No.
WLCSP6
Pin Name
VOUT
VIN
Description
A1
Regulated Output Voltage pin
Input Voltage Supply pin
A2
B1
FB
Adjustable Regulator Feedback Input. Connect to output voltage resistor divider central node.
(ADJ devices)
B1
SNS
EN
Output voltage Sensing Input. Connect to Output on the PCB to output the voltage
corresponding to the part version.
(Fix Volt devices)
B2
Enable pin. Driving this pin high enables the regulator. Driving this pin low puts the regulator into
shutdown mode.
C1
C2
GND
Ground pin
VBIAS
Bias voltage supply for internal control circuits. This pin is monitored by internal Under-Voltage
Lockout Circuit.
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
V
Input Voltage (Note 1)
V
IN
−0.3 to 6
Output Voltage
V
OUT
−0.3 to (V +0.3) ≤ 6
V
IN
Chip Enable, Bias, FB and SNS Input
Output Short Circuit Duration
Maximum Junction Temperature
Storage Temperature
V
V
V
V
−0.3 to 6
unlimited
150
V
EN, BIAS, FB, SNS
t
s
SC
T
°C
°C
V
J
T
−55 to 150
2000
STG
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
ESD
HBM
ESD
200
V
MM
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 (except OUT pin) and is tested by the following methods:
ESD Human Body Model tested per EIA/JESD22−A114
ESD Machine Model tested per EIA/JESD22−A115
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
THERMAL CHARACTERISTICS
Rating
Symbol
Value
Unit
Thermal Characteristics, WLCSP6 1.2 mm x 0.8 mm
RqJA
69
°C/W
Thermal Resistance, Junction−to−Air (Note 3)
3. This junction−to−ambient thermal resistance under natural convection was derived by thermal simulations based on the JEDEC JESD51
series standards methodology. Only a single device mounted at the center of a high_K (2s2p) 80 mm x 80 mm multilayer board with 1−ounce
internal planes and 2−ounce copper on top and bottom. Top copper layer has a dedicated 1.6 sqmm copper area.
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3
NCP137
ELECTRICAL CHARACTERISTICS −40°C ≤ T ≤ 85°C; V
= 2.7 V or (V
+ 1.6 V), whichever is greater, V = V
OUT(NOM)
+
J
BIAS
OUT
IN
0.3 V, I
= 1 mA, V = 1 V, C = 4.7 mF, C
= 10 mF, C
= 1 mF, unless otherwise noted. Typical values are at T = +25°C.
OUT
EN
IN
OUT
BIAS J
Min/Max values are for −40°C ≤ T ≤ 85°C unless otherwise noted. (Notes 4, 5)
J
Parameter
Test Conditions
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
Range
V
IN
V
+
5.5
V
OUT
DO
V
Operating Bias Voltage
Range
V
(V
+
5.5
V
V
V
BIAS
OUT
1.50) ≥ 2.5
Undervoltage Lock−out
V
Rising
UVLO
1.6
0.2
BIAS
Hysteresis
Reference Voltage
(Adj devices)
T = +25°C
J
V
0.500
REF
Output Voltage Accuracy
V
V
0.5
%
%
OUT
Output Voltage Accuracy −40°C ≤ T ≤ 85°C, V
+ 0.3 V ≤ V ≤
IN
−1.0
+1.0
J
OUT(NOM)
OUT
V
+ 1.0 V, 2.7 V or (V
+
OUT(NOM)
OUT(NOM)
1.6 V), whichever is greater < V
< 5.5 V,
BIAS
1 mA < I
< 700 mA
OUT
V
V
Line Regulation
V
+ 0.3 V ≤ V ≤ 5.0 V
Line
Line
0.01
0.01
%/V
%/V
IN
OUT(NOM)
IN
Reg
Line Regulation
2.7 V or (V
greater < V
+ 1.6 V), whichever is
OUT(NOM)
BIAS
Reg
< 5.5 V
BIAS
Load Regulation
I
I
I
= 1 mA to 700 mA
Load
1.5
40
mV
mV
V
OUT
OUT
OUT
Reg
V
IN
Dropout Voltage
= 700 mA (Notes 6, 7)
V
DO
60
1.5
V
BIAS
Dropout Voltage
= 700 mA, V = V
(Notes 6, 8, 9)
V
1.1
IN
BIAS
DO
CL
Output Current Limit
V
= 90% V
I
800
1200
0.1
1500
0.5
mA
mA
OUT
OUT(NOM)
FB/SNS Pin Operating
Current
I
, I
FB SNS
Bias Pin Quiescent
Current
V
BIAS
= 2.7 V, I
= 0 mA
I
35
50
mA
OUT
BIASQ
Bias Pin Disable Current
V
V
≤ 0.4 V
≤ 0.4 V
I
0.5
0.5
1
1
mA
mA
EN
BIAS(DIS)
Vinput Pin Disable
Current
I
VIN(DIS)
EN
EN Pin Threshold Voltage EN Input Voltage “H”
EN Input Voltage “L”
V
0.9
V
EN(H)
V
0.4
1
EN(L)
EN Pull Down Current
V
EN
= 5.5 V
I
0.3
mA
ms
EN
Turn−On Time
From assertion of V to V
=
t
150
EN
OUT
ON
98% V
. V
= 1.0 V,
OUT(NOM) OUT(NOM)
C
= 4.7 mF
OUT
Power Supply Rejection
Ratio (Adj devices)
V
to V
, f = 1 kHz, I
= 10 mA,
= 1.0 V,
PSRR(V )
IN
75
85
dB
dB
IN
OUT
OUT
OUT
VIN ≥ V
+0.5 V, V
OUT(NOM)
C
= 4.7 mF
OUT
V
to V
OUT
= 3.0 V, C
, f = 1 kHz, I
= 10 mA,
= 1.0 V,
PSRR(V
)
BIAS
OUT
OUT
BIAS
VIN ≥ V
+0.5 V, V
OUT(NOM)
= 4.7 mF
V
BIAS
OUT
Output Noise Voltage
(Adj devices)
V
V
= V
OUT(NOM)
+0.5 V, f = 10 Hz to 100 kHz,
V
N
35 x
OUT REF
mV
RMS
IN
OUT
= 1.0 V, C
= 4.7 mF
V
/V
OUT
Thermal Shutdown
Threshold
Temperature increasing
Temperature decreasing
160
140
°C
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
=
A
25°C. Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Adjustable devices tested at V = V unless otherwise noted; external resistor tolerance is not taken into account.
OUT
REF
OUT
6. Dropout voltage is characterized when V
falls 3% below V
.
OUT(NOM)
7. For adjustable devices, V dropout voltage tested at V
= 2 x V
.
IN
OUT(NOM)
OUT(NOM)
REF
8. For adjustable devices, V
dropout voltage tested at V
= 3 x V
due to a minimum Bias operating voltage of 2.5 V.
BIAS
REF
9. For fixed output voltages below 1.5 V, V
dropout does not apply due to a minimum Bias operating voltage of 2.5 V.
BIAS
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4
NCP137
ELECTRICAL CHARACTERISTICS −40°C ≤ T ≤ 85°C; V
= 2.7 V or (V
+ 1.6 V), whichever is greater, V = V
OUT(NOM)
+
J
BIAS
OUT
IN
0.3 V, I
= 1 mA, V = 1 V, C = 4.7 mF, C
= 10 mF, C
= 1 mF, unless otherwise noted. Typical values are at T = +25°C.
OUT
EN
IN
OUT
BIAS J
Min/Max values are for −40°C ≤ T ≤ 85°C unless otherwise noted. (Notes 4, 5)
J
Parameter
Test Conditions
= 0.5 V, NCP137A options
Symbol
Min
Typ
Max
Unit
Output Discharge
Pull−Down
V
≤ 0.4 V, V
R
DISCH
150
W
EN
OUT
only
Power Supply Rejection
Ratio (Fixed Voltage
devices)
PSRR(V )
IN
75
85
40
dB
dB
V
V
to V
, f = 1 kHz, I
= 10 mA,
IN
IN
OUT
OUT
OUT
OUT(NOM)
≥ V
+0.5 V, V
= 1.05 V,
C
= 10 mF
OUT
V
V
V
to V
, f = 1 kHz, I
= 10 mA,
= 1.05 V,
PSRR(V
)
BIAS
IN
BIAS
OUT
OUT
BIAS
≥ V
+0.5 V, V
OUT
OUT(NOM)
= 3.0 V, C
= 10 mF
OUT
Output Noise Voltage
(Fixed Voltage devices)
V
V
= V
+0.5 V, f = 10 Hz to 100 kHz,
V
N
mVRMS
IN
OUT
= 1.05 V, C
= 10 mF
OUT(NOM)
OUT
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
=
A
25°C. Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Adjustable devices tested at V = V unless otherwise noted; external resistor tolerance is not taken into account.
OUT
REF
OUT
6. Dropout voltage is characterized when V
falls 3% below V
.
OUT(NOM)
7. For adjustable devices, V dropout voltage tested at V
= 2 x V
.
IN
OUT(NOM)
OUT(NOM)
REF
8. For adjustable devices, V
dropout voltage tested at V
= 3 x V
due to a minimum Bias operating voltage of 2.5 V.
BIAS
REF
9. For fixed output voltages below 1.5 V, V
dropout does not apply due to a minimum Bias operating voltage of 2.5 V.
BIAS
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.
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5
NCP137
APPLICATIONS INFORMATION
VBAT
NCP137
EN
Switch−mode DC/DC
= 1.5 V
1.0 V
OUT
SNS
V
OUT
BIAS
1.5 V
LX
FB
LOAD
IN
IN
GND
EN
Processor
GND
I/O
I/O
To other circuits
Figure 4. Typical Application: Low−Voltage DC/DC Post−Regulator with ON/OFF Functionality
Dropout Voltage
The NCP137 dual−rail very low dropout voltage regulator
Because of two power supply inputs V and V
and
is using NMOS pass transistor for output voltage regulation
IN
BIAS
one V
regulator output, there are two Dropout voltages
from V voltage. All the low current internal control
OUT
IN
specified.
The first, the V Dropout voltage is the voltage
circuitry is powered from the V
voltage.
BIAS
The use of an NMOS pass transistor offers several
advantages in applications. Unlike PMOS topology devices,
the output capacitor has reduced impact on loop stability.
Vin to Vout operating voltage difference can be very low
compared with standard PMOS regulators in very low Vin
applications.
The NCP137 offers smooth monotonic start-up. The
controlled voltage rising limits the inrush current.
The Enable (EN) input is equipped with internal
hysteresis. NCP137 Voltage linear regulator Fixed and
Adjustable version is available.
IN
difference (V – V
) when V
OUT
starts to decrease by
IN
OUT
percent specified in the Electrical Characteristics table.
is high enough; specific value is published in the
V
BIAS
Electrical Characteristics table.
The second, V
dropout voltage is the voltage
BIAS
difference (V
– V
) when V and V
pins are
BIAS
OUT
IN
BIAS
joined together and V
starts to decrease.
OUT
Input and Output Capacitors
The Adjustable device is designed to be stable for ceramic
output capacitors with Effective capacitance in the range
from 4.7 mF to 22 mF. The device is also stable with multiple
capacitors in parallel, having the total effective capacitance
in the specified range. For ADJ applications with nominal
output voltage less than 0.6 V and for all the fixed voltage
devices applications the output capacitor effective
capacitance 10 mF to 22 mF is recommended.
Output Voltage Adjust
The required output voltage of Adjustable devices can be
adjusted from 0.5 V to 3.0 V using two external resistors.
Typical application schematics is shown in Figure 5.
VBIAS
C
NCP137 ADJ
In applications where no low input supplies impedance
BIAS
available (PCB inductance in V and/or V
inputs as
IN
BIAS
OUT
FB
BIAS
VOUT
example), the recommended C = 1 mF and C
= 0.1 mF
IN
BIAS
R1
R2
VIN
IN
mF
4.7
or greater. Ceramic capacitors are recommended. For the best
performance all the capacitors should be connected to the
NCP137 respective pins directly in the device PCB copper
layer, not through vias having not negligible impedance.
When using small ceramic capacitor, their capacitance is
not constant but varies with applied DC biasing voltage,
temperature and tolerance. The effective capacitance can be
much lower than their nominal capacitance value, most
importantly in negative temperatures and higher LDO
output voltages. That is why the recommended Output
capacitor capacitance value is specified as Effective value in
the specific application conditions.
EN
C
IN
GND
VEN
ǒ
Ǔ
VOUT + 0.5 V 1 ) R1ńR2
Figure 5. Typical Application Schematics
It is recommended to keep the total serial resistance of
resistors (R1 + R2) no greater than 100 kW.
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6
NCP137
Enable Operation
Thermal Protection
The enable pin will turn the regulator on or off. The
threshold limits are covered in the electrical characteristics
table in this data sheet. If the enable function is not to be used
Internal thermal shutdown (TSD) circuitry is provided to
protect the integrated circuit in the event that the maximum
junction temperature is exceeded. When TSD activated , the
regulator output turns off. When cooling down under the low
temperature threshold, device output is activated again. This
TSD feature is provided to prevent failures from accidental
overheating.
Activation of the thermal protection circuit indicates
excessive power dissipation or inadequate heatsinking. For
reliable operation, junction temperature should be limited to
+105°C maximum.
then the pin should be connected to V or V
.
IN
BIAS
Current Limitation
The internal Current Limitation circuitry allows the
device to supply the full nominal current and surges but
protects the device against Current Overload or Short.
ORDERING INFORMATION
Nominal
Output
Voltage
Device
Marking
Option
Package
Shipping†
NCP137AFCTADJT2G
ADJ
A7
Output Active Discharge
Output Active Discharge,
Back Side Coating
NCP137AFCTCADJT2G
ADJ
A7
NCP137BFCTADJT2G
NCP137AFCT045T2G
NCP137AFCT105T2G
NCP137AFCT110T2G
ADJ
D7
AT
AA
AH
Non−Active Discharge
Output Active Discharge
Output Active Discharge
Output Active Discharge
0.45 V
1.05 V
1.10 V
WLCSP6
(Pb−Free)
5000 / Tape & Reel
Output Active Discharge,
Back Side Coating
NCP137AFCTC110T2G
NCP137AFCT120T2G
1.10 V
1.20 V
AH
AD
Output Active Discharge
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Spe-
cifications Brochure, BRD8011/D.
To order other package and voltage variants, please contact your ON Semiconductor sales representative
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7
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
WLCSP6, 1.20x0.80
CASE 567MV
ISSUE B
SCALE 4:1
DATE 05 JUN 2018
E
A
NOTES:
B
D
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. COPLANARITY APPLIES TO SPHERICAL
CROWNS OF SOLDER BALLS.
PIN A1
REFERENCE
MILLIMETERS
2X
0.05
0.05
C
DIM
A
A1
A2
b
D
E
e
MIN
−−−
0.04
0.23 REF
0.24
1.20 BSC
0.80 BSC
0.40 BSC
MAX
0.33
0.08
2X
C
0.30
TOP VIEW
SIDE VIEW
A2
A
0.05
0.05
C
GENERIC
MARKING DIAGRAM*
C
SEATING
PLANE
C
e
NOTE 3
A1
XXM
XX = Specific Device Code
6X
b
e
M
= Month Code
0.05
0.03
C
C
A B
C
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
B
A
1
2
BOTTOM VIEW
RECOMMENDED
SOLDERING FOOTPRINT*
PACKAGE
OUTLINE
A1
6X
0.40
PITCH
0.20
0.40
PITCH
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.
Electronic versions are uncontrolled except when accessed directly from the Document Repository.
Printed versions are uncontrolled except when stamped “CONTROLLED COPY” in red.
DOCUMENT NUMBER:
DESCRIPTION:
98AON06670G
WLCSP6, 1.20x0.80
PAGE 1 OF 1
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