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NCP508MT33TBG

P1-P3P4-P6P7-P9P10-P12P13-P15
© Semiconductor Components Industries, LLC, 2011
January, 2011 − Rev. 5
1 Publication Order Number:
NCP508/D
NCP508
Very Low Noise, Fast Turn
On, 50 mA Low Dropout
Voltage Regulator
The NCP508 is a 50 mA low noise voltage regulator, designed to
exhibit fast turn on time and high ripple rejection. Each device
contains a voltage reference unit, an error amplifier, a PMOS power
transistor, resistors for setting output voltage, current limit, and
temperature limit protection circuits.
The NCP508 has been designed for use with ceramic capacitors.
The device is housed in SC−88A and WDFN6 1.5x1.5 packages.
Standard voltage versions are 1.5, 1.8, 2.5, 2.8, 3.0, and 3.3. Other
voltages are available in 100 mV steps.
Features
• Very Low Noise at 39 mVrms without a Bypass Capacitor
• High Ripple Rejection of 70 dB at 1 kHz
• Low Dropout Voltage of 140 mV (typ) at 30 mA
• Tight Load Regulation, typically 6 mV for DI
out
= 50 mA
• Fast Enable Turn−On time of 20 msec
• Logic Level Enable
• ESR can vary from a few mW to 3 W
• These are Pb−Free Devices
Typical Applications
• RF Subsystems in Handsets
• Noise Sensitive Circuits; VCOs, PLL
V
out
Battery or
Unregulated
Voltage
C1
1m
C2
1m
OFF
ON
1
2
3
5
4
Figure 1. Typical Application Diagram
See detailed ordering and shipping information in the package
dimensions section on page 13 of this data sheet.
ORDERING INFORMATION
PIN CONNECTIONS
1
3
NC
V
in
2GND
Enable
4
V
out
5
SC−88A
(Top View)
XXX = Specific Device Code
M = Date Code*
G = Pb−Free Package
MARKING
DIAGRAM
http://onsemi.com
1
2
3
4
5
SC70−5/SC−88A/SOT−353
SQ SUFFIX
CASE 419A
1
5
xxx MG
G
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(Note: Microdot may be in either location)
M
*Date Code orientation and/or position may
vary depending upon manufacturing location.
1
3
Enable
V
out
2
NC
GND
4
V
in
6
WDFN6
(Top View)
WDFN6
MN SUFFIX
CASE 511BJ
X = Specific Device Code
M = Date Code
G = Pb−Free Package
NC
5
X MG
G
1
(Note: Microdot may be in either location)
NCP508
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2
PIN FUNCTION DESCRIPTION
Pin No. Pin Name Description
1 V
in
Positive power supply input voltage
2 GND Power supply ground
3 Enable This input is used to place the device into low−power stand by. When this input is pulled low, the
device is disabled. If this function is not used, Enable should be connected to V
in
.
4 N/C Not connected pin
5 V
out
Regulated output voltage
MAXIMUM RATING
Rating Symbol Value Unit
Input Voltage V
in(max)
13.0 V
Enable Voltage Enable −0.3 to V
in(max)
+ 0.3 V
Output Voltage V
out
−0.3 to V
in(max)
+ 0.3 V
Power Dissipation and Thermal Characteristics (SC−88A)
Power Dissipation
Thermal Resistance, Junction−to−Ambient (Note 4)
P
D
R
q
JA
Internally Limited
200
W
°C/W
Power Dissipation and Thermal Characteristics (WDFN6)
Power Dissipation
Thermal Resistance, Junction−to−Ambient (Note 4)
P
D
R
q
JA
Internally Limited
313
W
°C/W
Maximum Junction Temperature T
J
+125 °C
Operating Ambient Temperature T
A
−40 to +85 °C
Storage Temperature T
stg
−55 to +150 °C
Lead Soldering Temperature @ 260°C T
solder
10 sec
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.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015.
Machine Model Method 200 V
2. Latch up Capability (85°C) $ 100 mA DC with trigger voltage
3. Maximum package power dissipation limits must be observed.
P
D
+
T
J
(
max
)
* T
A
R
qJA
4. R
q
JA
on a 30 x 30 mm PCB Cu thickness 1 oz; T
A
= 25°C.
RECOMMENDED OPERATING CONDITIONS
Rating Symbol Max Unit
Maximum Operating Input Voltage V
in
7.0 V
NCP508
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3
ELECTRICAL CHARACTERISTICS (V
in
= V
out(nom)
+ 1.0 V, V
enable
= V
in
, C
in
= 1.0 mF, C
out
= 1.0 mF, T
J
= 25°C, unless otherwise
noted)
Characteristic
Symbol Min Typ Max Unit
Output Voltage Tolerance (T
A
= 25°C, I
out
= 10 mA) V
out
−2 − +2 %
Output Voltage Tolerance (T
A
= −40°C to 85°C, I
out
= 10 mA) V
out
−3 − +3 %
Line Regulation (V
in
= V
out
+ 1 V to 12 V, I
out
= 10 mA) (Note 5) Reg
line
− 2 20 mV
Load Regulation (I
out
= 1.0 mA to 50 mA) (Note 5) Reg
load
− 6 40 mV
Output Current (V
out
= V
out(nom)
– 0.1 V) I
out(nom)
50 − − mA
Dropout Voltage (V
out
= 3.0 V, Measured at V
out
– 100 mV)
I
out
= 30 mA
I
out
= 40 mA
I
out
= 50 mA
V
in
−V
out
−
−
−
140
155
180
250
300
−
mV
Quiescent Current
(Enable Input = 0V)
I
Q
− 0.1 1
mA
Ground Current
(Enable Input = V
in
, V
in
= V
out
+ 1 V, I
out
= 0 mA)
(Enable Input = V
in
, I
out
= 1 mA)
(Enable Input = V
in
, I
out
= 10 mA)
(Enable Input = V
in
, I
out
= 50 mA)
I
GND
−
−
−
−
145
160
300
1100
200
260
500
1900
mA
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
V
th(en)
0.9
−
−
−
−
0.15
V
Enable Input Current (V
enable
= 2.4 V) I
enable
− 8.0 15
mA
Output Turn On Time (Note 6) − − 20 −
ms
Output Short Circuit Current Limit (V
out
= 0 V) I
out(max)
100 250 − mA
Ripple Rejection (V
in
= V
out(nom)
+ 1 Vdc + 0.5 V
pp
, f = 1 kHz, Io = 10 mA) RR − 70 − dB
Output Noise Voltage (f = 100 Hz to 100 kHz) (V
out
= 1.5 V) V
n
− 39 −
mVrms
5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
6. Turn on time is defined from Enable at 10% to V
out
at 95% nominal value. Min and max values T
A
= −40°C to 85°C, T
jmax
= 125°C. V
enable
= 0 V to V
in
. C
out
= 1.0 mF.
P1-P3P4-P6P7-P9P10-P12P13-P15

NCP508MT33TBG

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Buy NCP508MT33TBG
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators 50 MA LDO W/ESD
Lifecycle:
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