ONSEMI NCP603SN150T1G

NCP603
Product Preview
300 mA High Performance
CMOS LDO Regulator with
Enable and Enhanced ESD
Protection
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The NCP603 provides 300 mA of output current at fixed voltage
options, or an adjustable output voltage from 5.0 V down to 1.250 V. It
is designed for portable battery powered applications and offers high
performance features such as low power operation, fast enable
response time, and low dropout.
The device is designed to be used with low cost ceramic capacitors
and is packaged in the TSOP-5/SOT23-5.
5
1
TSOP-5
SN SUFFIX
CASE 483
MARKING DIAGRAM
Features
•Output Voltage Options:
5
Adjustable, 1.3 V, 1.5 V, 1.8 V, 2.8 V, 3.0 V, 3.3 V, 3.5 V, 5.0 V
•Adjustable Output by External Resistors from 5.0 V down to 1.250 V
•Fast Enable Turn-on Time of 15 ms
•Wide Supply Voltage Range Operating Range
•Excellent Line and Load Regulation
•Typical Noise Voltage of 50 mVrms without a Bypass Capacitor
•Enhanced ESD Protection (HBM 3.5 kV, MM 400 V)
•These are Pb-Free Devices
xxx AYWG
G
1
xxx
A
Y
W
G
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
Typical Applications
•SMPS Post-Regulation
•Hand-held Instrumentation & Audio Players
•Noise Sensitive Circuits – VCO, RF Stages, etc.
•Camcorders and Cameras
•Portable Computing
PIN CONNECTIONS
Vin
1
GND
2
ENABLE
3
5
Vout
4
ADJ/NC*
VOUT
VIN
(Top View)
Fixed Voltage Only
Driver w/
Current Limit
* ADJ - Adjustable Version
* NC - Fixed Voltage Version
+
-
+
1.25 V
-
GND
ORDERING INFORMATION
Thermal
Shutdown
ADJ
See detailed ordering and shipping information in the
package dimensions section on page 12 of this data sheet.
Adjustable Version Only
ENABLE
Figure 1. Simplified Block Diagram
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
© Semiconductor Components Industries, LLC, 2007
November, 2007 - Rev. P1
1
Publication Order Number:
NCP603/D
NCP603
PIN FUNCTION DESCRIPTION
Pin No.
Pin Name
1
Vin
Description
2
GND
3
ENABLE
The Enable Input places the device into low-power standby when pulled to logic low (< 0.4 V). Connect to Vin
if the function is not used.
4
ADJ/NC
Output Voltage Adjust Input (Adjustable Version), No Connection (Fixed Voltage Versions) (Note 1)
5
Vout
Positive Power Supply Input
Power Supply Ground; Device Substrate
Regulated Output Voltage
1. True no connect. Printed circuit board traces are allowable.
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Vin
-0.3 to 6.5
V
Vout, ENABLE, ADJ
-0.3 to 6.5 (or Vin + 0.3)
Whichever is Lower
V
TJ(max)
150
°C
TSTG
-65 to 150
°C
ESD Capability, Human Body Model (Note 3)
ESDHBM
3500
V
ESD Capability, Machine Model (Note 3)
ESDMM
400
V
MSL
MSL1/260
-
Input Voltage (Note 2)
Output, Enable, Adjustable Voltage
Maximum Junction Temperature
Storage Temperature
Moisture Sensitivity Level
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
2. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
3. 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: v150 mA per JEDEC standard: JESD78.
THERMAL CHARACTERISTICS
Rating
Symbol
Thermal Characteristics, TSOP-5 (Note 4)
Thermal Resistance, Junction-to-Air (Note 5)
Value
Unit
°C/W
RqJA
215
4. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
5. Value based on copper area of 645 mm2 (or 1 in2) of 1 oz copper thickness.
OPERATING RANGES (Note 6)
Symbol
Min
Input Voltage (Note 7)
Vin
Adjustable Output Voltage (Adjustable Version Only)
Vout
Output Current
Ambient Temperature
Rating
Max
Unit
1.75
6
V
1.25
5.0
V
Iout
0
300
mA
TA
-40
125
°C
6. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
7. Minimum Vin = 1.75 V or (Vout + VDO), whichever is higher.
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NCP603
ELECTRICAL CHARACTERISTICS (Vin = 1.750 V, Vout = 1.250 V, Cin = Cout =1.0 mF, for typical values TA = 25°C, for min/max
values TA = -40°C to 125°C, unless otherwise specified.) (Note 8)
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Regulator Output (Adjustable Voltage Version)
Output Voltage
Vout
Iout = 1.0 mA to 150 mA
Vin = 1.75 V to 6.0 V,
Vout = ADJ
1.231
(-1.5%)
1.250
1.269
(+1.5%)
V
Output Voltage
Vout
Iout = 1.0 mA to 300 mA
Vin = 1.75 V to 6.0 V,
Vout = ADJ = 1.25 V
1.213
(-3%)
1.250
1.287
(+3%)
V
Power Supply Ripple Rejection (Note 9)
PSRR
Iout = 1.0 mA to 150 mA
Vin = Vout + 1 V + 0.5 Vp-p
f = 120 Hz
f = 1.0 kHz
f = 10 kHz
dB
-
62
55
38
-
Line Regulation
Regline
Vin = 1.750 V to 6.0 V,
Iout = 1.0 mA
-
1.0
10
mV
Load Regulation
Regload
Iout = 1.0 mA to 300 mA
-
2.0
45
mV
f = 10 Hz to 100 kHz
-
50
-
mVrms
500
650
900
mA
Measured at: Vout – 2.0%,
Iout = 150 mA, Figure 2
-
175
250
Measured at: Vout – 2.0%,
Iout = 300 mA, Figure 2
-
375
480
300
650
-
Output Noise Voltage (Note 9)
Vn
Output Short Circuit Current
Isc
Dropout Voltage
1.25 V
VDO
Dropout Voltage
1.25 V
VDO
Output Current Limit
Iout(max)
mV
mV
mA
Regulator Output (Fixed Voltage Version) (Vin = Vout + 0.5 V, Cin = Cout =1.0 mF, for typical values TA = 25°C, for min/max values TA =
-40°C to 125°C; unless otherwise noted.) (Note 8)
Output Voltage
1.3 V
1.5 V
1.8 V
2.8 V
3.0 V
3.3 V
3.5 V
5.0 V
Vout
Iout = 1.0 mA to 150 mA
Vin = (Vout + 0.5 V) to 6.0 V
(-2%)
1.270
1.470
1.764
2.744
2.940
3.234
3.43
4.900
(+2%)
1.326
1.530
1.836
2.856
3.060
3.366
3.57
5.100
V
1.3
1.5
1.8
2.8
3.0
3.3
3.5
5.0
Output Voltage
1.3 V
1.5 V
1.8 V
2.8 V
3.0 V
3.3 V
3.5 V
5.0 V
Vout
Iout = 1.0 mA to 300 mA
Vin = (Vout + 0.5 V) to 6.0 V
(-3%)
1.261
1.455
1.746
2.716
2.910
3.201
3.395
4.850
(+3%)
1.339
1.545
1.854
2.884
3.090
3.399
3.605
5.150
V
1.3
1.5
1.8
2.8
3.0
3.3
3.5
5.0
PSRR
Iout = 1.0 mA to 150 mA
Vin = Vout + 1 V + 0.5 Vp-p
f = 120 Hz
f = 1.0 kHz
f = 10 kHz
Power Supply Ripple Rejection (Note 9)
dB
-
62
55
38
-
Line Regulation
Regline
Vin = 1.750 V to 6.0 V,
Iout = 1.0 mA
-
1.0
10
mV
Load Regulation
Regload
Iout = 1.0 mA to 150 mA
Iout = 1.0 mA to 300 mA
-
2.0
2.0
30
45
mV
8. Performance guaranteed over the indicated operating temperature range by design and/or characterization, production tested at TJ = TA =
25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
9. Values based on design and/or characterization.
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NCP603
ELECTRICAL CHARACTERISTICS (Vin = 1.750 V, Vout = 1.250 V (adjustable version)), (Vin = Vout + 0.5 V (fixed version)),
Cin = Cout =1.0 mF, for typical values TA = 25°C, for min/max values TA = -40°C to 125°C, unless otherwise specified.) (Note 10)
Characteristic
Symbol
Output Noise Voltage (Note 11)
Vn
Output Short Circuit Current
Isc
Dropout Voltage
1.3 V
1.5 V
1.8 V
2.7 V to 5.0 V
VDO
Dropout Voltage
1.3 V
1.5 V
1.8 V
2.7 V to 5.0 V
VDO
Output Current Limit
Test Conditions
f = 10 Hz to 100 kHz
Measured at: Vout – 2.0%
Iout = 150 mA
Measured at: Vout – 2.0%
Iout = 300 mA
Iout(max)
Min
Typ
Max
Unit
-
50
-
mVrms
500
650
900
mA
-
175
150
125
75
250
225
175
125
-
375
350
245
157
480
400
340
230
300
650
-
mA
mV
mV
General
Disable Current
IDIS
ENABLE = 0 V, Vin = 6 V
-40°C ≤ TA ≤ 85°C
-
0.01
1.0
mA
Ground Current
IGND
ENABLE = 0.9 V,
Iout = 1.0 mA to 300 mA
-
145
180
mA
Thermal Shutdown Temperature (Note 11)
TSD
-
175
-
°C
Thermal Shutdown Hysteresis (Note 11)
TSH
-
10
-
°C
ADJ Input Bias Current
IADJ
-0.75
-
0.75
mA
Chip Enable
ENABLE Input Threshold Voltage
Vth(EN)
V
Voltage Increasing, Logic High
0.9
Voltage Decreasing, Logic Low
Enable Input Bias Current (Note 11)
IEN
-
-
-
-
0.4
-
3.0
100
-
15
30
25
50
nA
Timing
Output Turn On Time (Note 11)
1.25 V to 3.5 V
5.0 V
tEN
ENABLE = 0 V to Vin
ms
10. Performance guaranteed over the indicated operating temperature range by design and/or characterization, production tested at TJ = TA =
25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
11. Values based on design and/or characterization.
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4
NCP603
5
1
VIN
CIN
2
4
3
ENABLE
VOUT
COUT
Figure 2. Typical Application Circuit for Vout = 1.250 V
(Adjustable Version)
5
1
VIN
CIN
2
R1
4
3
ENABLE
VOUT
COUT
R2
Figure 3. Typical Application Circuit for Adjustable Vout
5
1
VIN
CIN
2
VOUT
COUT
4
3
Figure 4. Typical Application Circuit
(Fixed Voltage Version)
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NCP603
TYPICAL CHARACTERISTICS
1.260
Vout, OUTPUT VOLTAGE (V)
Vout, OUTPUT VOLTAGE (V)
1.260
1.256
Iout = 1.0 mA
1.252
Iout = 150 mA
1.248
Vin = Vout + 0.5 V
Vout = ADJ
1.244
1.240
-40 -20
0
20
40
60
80
Vin = 6.0 V
Vout = ADJ
1.244
-15
10
35
60
85
110 125
Figure 5. Output Voltage vs. Temperature
(Vin = Vout + 0.5 V)
Figure 6. Output Voltage vs. Temperature
(Vin = 6.0 V)
1.500
Vout, OUTPUT VOLTAGE (V)
Vout, OUTPUT VOLTAGE (V)
Iout = 1.0 mA
1.490
Iout = 150 mA
1.485
1.480
-15
10
35
60
85
Iout = 1.0 mA
1.495
1.490
Iout = 150 mA
1.485
1.480
1.475
-40
110 125
-15
10
35
60
85
110 125
TA, TEMPERATURE (°C)
TA, TEMPERATURE (°C)
Figure 7. Output Voltage vs. Temperature
(1.5 V Fixed Output, Vin = 2 V)
Figure 8. Output Voltage vs. Temperature
(1.5 V Fixed Output, Vin = 6 V)
3.005
3.005
Iout = 1.0 mA
3.000
2.995
Vout, OUTPUT VOLTAGE (V)
Vout, OUTPUT VOLTAGE (V)
Iout = 150 mA
1.248
TA, TEMPERATURE (°C)
1.495
Iout = 150 mA
2.990
2.985
2.980
2.975
-40
1.252
TA, TEMPERATURE (°C)
1.500
1.475
-40
Iout = 1.0 mA
1.240
-40
120
100
1.256
-15
10
35
60
85
110 125
Iout = 1.0 mA
3.000
2.995
2.990
Iout = 150 mA
2.985
2.980
2.975
2.970
-40
TA, TEMPERATURE (°C)
-15
10
35
60
85
110 125
TA, TEMPERATURE (°C)
Figure 9. Output Voltage vs. Temperature
(3.0 V Fixed Output, Vin = 3.5 V)
Figure 10. Output Voltage vs. Temperature
(3.0 V Fixed Output, Vin = 6 V)
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NCP603
TYPICAL CHARACTERISTICS
5.000
5.000
Iout = 1.0 mA
4.995
Vout, OUTPUT VOLTAGE (V)
Vout, OUTPUT VOLTAGE (V)
Iout = 1.0 mA
4.990
Iout = 150 mA
4.985
4.980
4.975
4.970
4.965
-40
-15
10
35
60
110 125
85
4.995
4.990
4.985
Iout = 150 mA
4.980
4.975
4.970
4.965
-40
-15
10
TA, TEMPERATURE (°C)
85
110 125
Figure 12. Output Voltage vs. Temperature
(5.0 V Fixed Output, Vin = 6 V)
250
Vout = ADJ
VDO, DROPOUT VOLTAGE (mV)
250
Iout = 150 mA
200
150
100
Iout = 50 mA
50
0
-40 -20
Iout = 1.0 mA
0
20
40
60
80
100
Iout = 150 mA
Vout = 1.25 V
200
1.50 V
1.80 V
150
2.80 V
100
3.00 V
50
5.00 V
0
-40 -20
120
0
20
40
60
80
100
120
TA, TEMPERATURE (°C)
TA, TEMPERATURE (°C)
Figure 13. Dropout Voltage vs. Temperature
(Over Current Range)
Figure 14. Dropout Voltage vs. Temperature
(Over Output Voltage)
800
6.0
5.5
5.0
Iout = 0 mA
Cout = 1.0 mF
TA = 25°C
ENABLE = Vin
4.5
4.0
5.0 V
3.3 V
3.0 V
3.5
3.0
ENABLE THRESHOLD (mV)
VDO, DROPOUT VOLTAGE (mV)
60
TA, TEMPERATURE (°C)
Figure 11. Output Voltage vs. Temperature
(5.0 V Fixed Output, Vin = 5.5 V)
Vout, OUTPUT VOLTAGE (V)
35
2.80 V
2.5
2.0
1.80 V
1.5 V
1.5
1.0
1.25 V
0.5
0
0
1.0
2.0
3.0
4.0
5.0
750
Enable Increasing
700
Enable Decreasing
650
Vin = 5.5 V
600
-40
6.0
-15
10
35
60
85
110 125
Vin, INPUT VOLTAGE (V)
TA, TEMPERATURE (°C)
Figure 15. Output Voltage vs. Input Voltage
Figure 16. Enable Threshold vs. Temperature
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NCP603
TYPICAL CHARACTERISTICS
6.0
IGND, GROUND CURRENT (mA)
IDIS, DISABLE CURRENT (mA)
154
5.0
4.0
3.0
2.0
ENABLE = 0 V
1.0
0
-40
-15
10
35
60
85
110
146
125
Vout = 5.0 V
Iout = 150 mA
Vout = 1.25 V
Iout = 1.0 mA
138
130
122
114
106
Iout = 150 mA
98
ENABLE = 0.9 V
90
-40
-20
0
20
40
80
60
100
TA, TEMPERATURE (°C)
TA, TEMPERATURE (°C)
Figure 17. Ground Current (Sleep Mode) vs.
Temperature
Figure 18. Ground Current (Run Mode) vs.
Temperature
120
106
160
140
1.5 V
IGND, GROUND CURRENT (mA)
3.0 V
2.8 V
5.0 V
3.3 V
120
1.8 V
1.25 V
100
80
60
40
20
105
104
103
102
101
100
Vout = ADJ
Vin = 1.75 V
99
98
0
0
1.0
2.0
3.0
4.0
0
6.0
5.0
25
50
75
100
125
150
Vin, INPUT VOLTAGE (V)
Iout, OUTPUT CURRENT (mA)
Figure 19. Ground Current vs. Input Voltage
Figure 20. Ground Current vs. Output Current
IADJ, ADJ INPUT BIAS CURRENT (nA)
IGND, GROUND CURRENT (mA)
Iout = 1.0 mA
400
300
200
100
0
-40
-20
0
20
40
60
80
100
TA, TEMPERATURE (°C)
Figure 21. ADJ Input Bias Current vs.
Temperature
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120
NCP603
700
650
Iout(max), CURRENT LIMIT (mA)
ISC, OUTPUT SHORT CIRCUIT CURRENT (mA)
TYPICAL CHARACTERISTICS
600
550
500
450
-40 -20
600
500
400
300
200
100
0
0
20
40
60
80
100
0
120
5.0
4.0
Figure 23. Current Limit vs. Input Voltage
6.0
5.0
Regload, LOAD REGULATION (mV)
3.0
2.0
1.0
Vin = (Vout + 0.5 V) to 6.0 V
Iout = 1.0 mA
0
20
40
60
80
100
4.0
3.0
2.0
1.0
Iout = 1.0 mA to 150 mA
0
-40
120
-15
10
35
60
85
110 125
TA, TEMPERATURE (°C)
TA, TEMPERATURE (°C)
Figure 24. Line Regulation vs. Temperature
Figure 25. Load Regulation vs. Temperature
45
80
40
70
1.25 V
60
35
3.3 V
5.0 V
PSRR (dB)
Regline, LINE REGULATION (mV)
3.0
Figure 22. Output Short Circuit Current vs.
Temperature
0
-40 -20
tEN, OUTPUT TURN ON TIME (ms)
2.0
Vin, INPUT VOLTAGE (V)
4.0
30
25
3.0 V
20
15
1.0
TA, TEMPERATURE (°C)
1.5 V
40
5.0 V
30
Vin = Vout + 1.0 V
Vripple = 0.5 Vp-p
Cout = 1.0 mF
Iout = 1.0 mA to 150 mA
20
1.25 V (ADJ)
10
-40 -20
50
10
0
0
20
40
60
80
100
120
0.1
1.0
10
100
TA, TEMPERATURE (°C)
f, FREQUENCY (kHz)
Figure 26. Output Turn On Time vs.
Temperature
Figure 27. Power Supply Ripple Rejection vs.
Frequency
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NCP603
TYPICAL CHARACTERISTICS
OUTPUT CAPACITOR ESR (W)
10
Vout = 5.0 V
Unstable Region
Vout = 1.25 V
1.0
Stable Region
0.1
Cout = 1.0 mF to 10 mF
TA = -40°C to 125°C
Vin = up to 6.0 V
0.01
0
25
50
75
100
125
150
Iout, OUTPUT CURRENT (mA)
Figure 28. Output Stability with Output
Capacitor ESR over Output Current
Vout = 1.25 V
Figure 29. Load Transient Response (1.0 mF)
Vout = 1.25 V
Figure 30. Load Transient Response (10 mF)
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NCP603
DEFINITIONS
Load Regulation
Line Regulation
The change in output voltage for a change in output load
current at a constant temperature.
The change in output voltage for a change in input voltage.
The measurement is made under conditions of low
dissipation or by using pulse techniques such that the
average junction temperature is not significantly affected.
Dropout Voltage
The input/output differential at which the regulator output
no longer maintains regulation against further reductions in
input voltage. Measured when the output drops 2% below its
nominal. The junction temperature, load current, and
minimum input supply requirements affect the dropout level.
Line Transient Response
Typical output voltage overshoot and undershoot
response when the input voltage is excited with a given
slope.
Output Noise Voltage
Load Transient Response
This is the integrated value of the output noise over a
specified frequency range. Input voltage and output load
current are kept constant during the measurement. Results
are expressed in mVrms or nV √ Hz.
Typical output voltage overshoot and undershoot
response when the output current is excited with a given
slope between no-load and full-load conditions.
Thermal Protection
Internal thermal shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated at typically 175°C,
the regulator turns off. This feature is provided to prevent
failures from accidental overheating.
Ground Current
Ground Current is the current that flows through the
ground pin when the regulator operates without a load on its
output (IGND). This consists of internal IC operation, bias,
etc. It is actually the difference between the input current
(measured through the LDO input pin) and the output load
current. If the regulator has an input pin that reduces its
internal bias and shuts off the output (enable/disable
function), this term is called the standby current (ISTBY.)
Maximum Package Power Dissipation
The power dissipation level at which the junction
temperature reaches its maximum operating value.
APPLICATIONS INFORMATION
output, there is no resistor divider. If the part is enabled
under no-load conditions, leakage current through the pass
transistor at junction temperatures above 85°C can approach
several microamperes, especially as junction temperature
approaches 150°C. If this leakage current is not directed into
a load, the output voltage will rise up to a level
approximately 20 mV above nominal.
The NCP603 contains an overshoot clamp circuit to
improve transient response during a load current step
release. When output voltage exceeds the nominal by
approximately 20 mV, this circuit becomes active and
clamps the output from further voltage increase. Tying the
ENABLE pin to Vin will ensure that the part is active
whenever the supply voltage is present, thus guaranteeing
that the clamp circuit is active whenever leakage current is
present.
When the NCP603 adjustable regulator is disabled, the
overshoot clamp circuit becomes inactive and the pass
transistor leakage will charge any capacitance on Vout. If no
load is present, the output can charge up to within a few
millivolts of Vin. In most applications, the load will present
some impedance to Vout such that the output voltage will be
inherently clamped at a safe level. A minimum load of
10mA is recommended.
The NCP603 series regulator is self-protected with
internal thermal shutdown and internal current limit. Typical
application circuits are shown in Figures 2 and 3.
Input Decoupling (Cin)
A ceramic or tantalum 1.0 mF capacitor is recommended
and should be connected close to the NCP603 package.
Higher capacitance and lower ESR will improve the overall
line transient response.
Output Decoupling (Cout)
The NCP603 is a stable component and does not require
a minimum Equivalent Series Resistance (ESR) for the
output capacitor. The minimum output decoupling value is
1.0 mF and can be augmented to fulfill stringent load
transient requirements. The regulator works with ceramic
chip capacitors as well as tantalum devices. Larger values
improve noise rejection and load regulation transient
response. Figure 28 shows the stability region for a range of
operating conditions and ESR values.
No-Load Regulation Considerations
The NCP603 adjustable regulator will operate properly
under conditions where the only load current is through the
resistor divider that sets the output voltage. However, in the
case where the NCP603 is configured to provide a 1.250 V
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11
NCP603
Noise Decoupling
Thermal
The NCP603 is a low noise regulator and needs no
external noise reduction capacitor. Unlike other low noise
regulators which require an external capacitor and have slow
startup times, the NCP603 operates without a noise
reduction capacitor, has a typical 15 ms start up delay and
achieves a 50 mVrms overall noise level between 10 Hz and
100 kHz.
As power in the NCP603 increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and the ambient temperature
affect the rate of junction temperature rise for the part. When
the NCP603 has good thermal conductivity through the
PCB, the junction temperature will be relatively low with
high power applications. The maximum dissipation the
NCP603 can handle is given by:
Enable Operation
The enable pin will turn the regulator on or off. The
threshold limits are covered in the electrical characteristics
table in this data sheet. The turn-on/turn-off transient
voltage being supplied to the enable pin should exceed a
slew rate of 10 mV/ms to ensure correct operation. If the
enable function is not to be used then the pin should be
connected to Vin.
PD(MAX) +
The output voltage can be adjusted from 1 times
(Figure2) to 4 times (Figure 3) the typical 1.250 V
regulation voltage via the use of resistors between the output
and the ADJ input. The output voltage and resistors are
chosen using Equation 1 and Equation 2.
ǒ
Ǔ
ƪ
ƫ
R1)
PD [ VIN([email protected]) ) IOUT(VIN * VOUT)
(eq. 4)
or
VIN(MAX) [
(eq. 1)
ƪ
(eq. 3)
Since TJ is not recommended to exceed 125_C (TJ(MAX)),
then the NCP603 can dissipate up to 465 mW when the
ambient temperature (TA) is 25_C and the device is
assembled on 1 oz PCB with 645 mm2 area.
The power dissipated by the NCP603 can be calculated
from the following equations:
Output Voltage Adjust
VOUT + 1.250 1 ) R1 ) (IADJ
R2
TJ(MAX) * TA
RqJA
ƫ
[Vout * (IADJ * R1)]
V
* 1 ^ R2 out * 1
R1 + R2 *
1.25
1.25
PD(MAX) ) (VOUT
IOUT)
IOUT ) IGND
(eq. 5)
Hints
Vin and GND printed circuit board traces should be as
wide as possible. When the impedance of these traces is
high, there is a chance to pick up noise or cause the regulator
to malfunction. Place external components, especially the
output capacitor, as close as possible to the NCP603, and
make traces as short as possible.
(eq. 2)
Input bias current IADJ is typically less than 150 nA.
Choose R2 arbitrarily t minimize errors due to the bias
current and to minimize noise contribution to the output
voltage. Use Equation 2 to find the required value for R1.
DEVICE ORDERING INFORMATION
Device
Marking Code
Version
NCP603SNADJT1G
AAU
ADJ
NCP603SN130T1G
AAF
1.3 V
NCP603SN150T1G
AAV
1.5 V
NCP603SN180T1G
AAW
1.8 V
NCP603SN280T1G
AAX
2.8 V
NCP603SN300T1G
AAY
3.0 V
NCP603SN330T1G
AAZ
3.3 V
NCP603SN350T1G
AA2
3.5 V
NCP603SN500T1G
AA3
5.0 V
Package
Shipping*
TSOP-5
(Pb-Free)
3000/Tape & Reel
*For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
http://onsemi.com
12
NCP603
PACKAGE DIMENSIONS
TSOP-5
CASE 483-02
ISSUE G
NOTE 5
2X
0.10 T
2X
0.20 T
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES
LEAD FINISH THICKNESS. MINIMUM LEAD
THICKNESS IS THE MINIMUM THICKNESS
OF BASE MATERIAL.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
5. OPTIONAL CONSTRUCTION: AN
ADDITIONAL TRIMMED LEAD IS ALLOWED
IN THIS LOCATION. TRIMMED LEAD NOT TO
EXTEND MORE THAN 0.2 FROM BODY.
D 5X
0.20 C A B
M
5
1
4
2
3
B
S
K
L
DETAIL Z
G
A
DIM
A
B
C
D
G
H
J
K
L
M
S
DETAIL Z
J
C
0.05
SEATING
PLANE
H
T
MILLIMETERS
MIN
MAX
3.00 BSC
1.50 BSC
0.90
1.10
0.25
0.50
0.95 BSC
0.01
0.10
0.10
0.26
0.20
0.60
1.25
1.55
0_
10 _
2.50
3.00
SOLDERING FOOTPRINT*
0.95
0.037
1.9
0.074
2.4
0.094
1.0
0.039
0.7
0.028
SCALE 10:1
mm Ǔ
ǒinches
*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
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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 alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
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Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada
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Email: [email protected]
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Phone: 81-3-5773-3850
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13
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
NCP603/D