Document
NCV4275
5.0 V, 450 mA Low-Drop
Voltage Regulator
The NCV4275 is an integrated low dropout regulator designed for use in harsh automotive environments. It includes wide operating temperature and input voltage ranges. The output is regulated at 5.0 V and is rated to 450 mA of output current. It also provides a number of features, including overcurrent protection, overtemperature protection and a programmable microprocessor reset. The NCV4275 is available in the DPAK and D2PAK surface mount packages. The output is stable over a wide output capacitance and ESR range.
Features
• 5.0 V, ±2% Output Voltage
• 450 mA Output Current
• Very Low Current Consumption • Active Reset Output
• Reset Low Down to VQ = 1.0 V • 500 mV (max) Dropout Voltage • Fault Protection
♦ +45 V Peak Transient Voltage ♦ −42 V Reverse Voltage ♦ Short Circuit ♦ Thermal Overload
• Pb−Free Packages are Available • NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
I
Bandgap Reference
Thermal Shutdown
D
Error Amplifier
+ −
Current Limit and Saturation Sense
Reset Generator
Q
1 5
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MARKING DIAGRAMS
DPAK
5−PIN DT SUFFIX
CASE 175AA
4275G ALYWW
1
1 5
D2PAK
5−PIN DS SUFFIX
CASE 936A
NC V4275
AWLYWWG
Pin 1. I
2. RO Tab, 3. GND*
4. D 5. Q
* Tab is connected to Pin 3 on all packages
1
A
WL, L Y
WW G
= Assembly Location
= Wafer Lot = Year
= Work Week = Lead Free Indicator
ORDERING INFORMATION
See detailed ordering and shipping information in the dimensions section on page 12 of this data sheet.
Figure 1. Block Diagram
GND RO
© Semiconductor Components Industries, LLC, 2010
April, 2010 − Rev. 16
1
Publication Order Number: NCV4275/D
NCV4275
PIN FUNCTION DESCRIPTION
Pin No.
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ1 ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ2 ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ3 ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ4 ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ5
Symbol I
RO GND
D Q
Description Input; Battery Supply Input Voltage. Bypass to ground with a ceramic capacitor. Reset Output; Open Collector Active Reset (accurate when I > 1.0 V). Ground; Pin 3 internally connected to tab. Reset Delay; timing capacitor to GND for Reset Delay function. Output; ±2.0%, 450 mA output. 22 mF, ESR < 5.0 Ω to ground.
MAXIMUM RATINGS†
Rating
Symbol
Min
Max Unit
Input Voltage Input Peak Transient Voltage Output Voltage Reset Output Voltage Reset Output Current Reset Delay Voltage Reset Delay Current Input Voltage Operating Range ESD Susceptibility −Human Body Model
−Machine Model
VI −42 45 V
VI − 45 V
VQ −1.0 16 V
VRO
−0.3
25 V
IRO −5.0 5.0 mA
VD −0.3 7.0 V
ID
−2.0
2.0 mA
VI 5.5 42 V
− 4.0 − kV − 200 − V
Junction Temperature
TJ −40 150 °C
Storage Temperature
Tstg −55 150 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.
LEAD TEMPERATURE SOLDERING REFLOW (Note 1)
Lead Free, 60 sec−150 sec above 217 Leaded, 60 sec−150 sec above 183
TSLD TSLD
−
265 Peak
°C
−
240 Peak
°C
THERMAL CHARACTERISTICS
Characteristic
Test Conditions (Typical Value)
Unit
DPAK 5−PIN PACKAGE
Min Pad Board (Note 2)
1″ Pad Board (Note 3)
Junction−to−Tab (psi−JLx, yJLx) Junction−to−Ambient (RqJA, qJA) D2PAK 5−PIN PACKAGE
4.2 100.9
4.7 C/W 46.8 C/W
0.4 sq. in. Spreader Board (Note 4)
1.2 sq. in. Spreader Board (Note 5)
Junction−to−Tab (psi−JLx, yJLx)
3.8
4.0 C/W
Junction−to−Ambient (RqJA, qJA)
74.8
41.6 C/W
1. 2.
PRR IPC / JEDEC 1 oz. copper, 0.26
J−STD−020C inch2 (168 mm2)
copper
area,
0.062″
thick
FR4.
3. 1 oz. copper, 1.14 inch2 (736 mm2) copper area, 0.062″ thick FR4.
4. 1 oz. copper, 0.373 inch2 (241 mm2) copper area, 0.062″ thick FR4.
5. 1 oz. copper, 1.222 inch2 (788 mm2) copper area, 0.062″ thick FR4.
†During the voltage range which exceeds the maximum tested voltage of I, operation is assured, but not specified. Wider limits may apply. Thermal
dissipation must be observed closely.
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NCV4275
ELECTRICAL CHARACTERISTICS (VI = 13.5 V; −40°C < TJ < 150°C; unless otherwise noted. Refer to Figure 13 for conditions.)
Characteristic
Symbol
Test Conditions
Min Typ Max Unit
Output
Output Voltage Output Voltage Output Current Limitation Quiescent Current, Iq = II − IQ Quiescent Current, Iq = II − IQ Quiescent Current, Iq = II − IQ Quiescent Current, Iq = II − IQ Dropout Voltage Load Regulation Line Regulation Power .