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NCP161 Datasheet

Ultra-Low Noise and High PSRR LDO Regulator

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NCP161
450 mA, Ultra-Low Noise
and High PSRR LDO
Regulator for RF and
Analog Circuits
The NCP161 is a linear regulator capable of supplying 450 mA
output current. Designed to meet the requirements of RF and analog
circuits, the NCP161 device provides low noise, high PSRR, low
quiescent current, and very good load/line transients. The device is
designed to work with a 1 mF input and a 1 mF output ceramic capacitor.
It is available in two thickness ultrasmall 0.35P, 0.65 mm x 0.65 mm
Chip Scale Package (CSP) and XDFN4 0.65P, 1 mm x 1 mm.
Features
Operating Input Voltage Range: 1.9 V to 5.5 V
Available in Fixed Voltage Option: 1.8 V to 5.14 V
±2% Accuracy Over Load/Temperature
Ultra Low Quiescent Current Typ. 18 mA
Standby Current: Typ. 0.1 mA
Very Low Dropout: 150 mV at 450 mA
Ultra High PSRR: Typ. 98 dB at 20 mA, f = 1 kHz
Ultra Low Noise: 10 mVRMS
Stable with a 1 mF Small Case Size Ceramic Capacitors
Available in WLCSP4 0.65 mm x 0.65 mm x 0.4 mm
WLCSP4 0.65 mm x 0.65 mm x 0.33 mm
XDFN4 1 mm x 1 mm x 0.4 mm
SOT235 2.9 mm x 2.8 mm x 1.2 mm
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Batterypowered Equipment
Wireless LAN Devices
Smartphones, Tablets
Cameras, DVRs, STB and Camcorders
VIN
IN OUT
CIN
1 mF
Ceramic
NCP161
EN
ON
OFF
GND
VOUT
COUT
1 mF
Ceramic
Figure 1. Typical Application Schematics
www.onsemi.com
WLCSP4
CASE 567JZ
WLCSP4
CASE 567KA
MARKING
DIAGRAMS
X
A1
X
A1
1
XDFN4
CASE 711AJ
XX M
1
1
SOT235
CASE 527AH
X, XX, XXX = Specific Device Code
M = Date Code
PIN CONNECTIONS (Top Views)
IN
GND
EN
15
2
34
OUT
NC
IN OUT
A1 A2
B1 B2
EN GND
IN EN
43
EPAD
1
OUT
2
GND
ORDERING INFORMATION
See detailed ordering and shipping information on page 16 of
this data sheet.
© Semiconductor Components Industries, LLC, 2017
February, 2019 Rev. 14
1
Publication Order Number:
NCP161/D


  ON Semiconductor Electronic Components Datasheet  

NCP161 Datasheet

Ultra-Low Noise and High PSRR LDO Regulator

No Preview Available !

IN
EN
NCP161
BANDGAP
REFERENCE
ENABLE
LOGIC
INTEGRATED
SOFTSTART
THERMAL
SHUTDOWN
MOSFET
DRIVER WITH
CURRENT LIMIT
OUT
* ACTIVE DISCHARGE
Version A only
EN
GND
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No. Pin No. Pin No. Pin
CSP4 SOT235 XDFN4 Name
Description
A1 1
4 IN Input voltage supply pin
A2 5
1 OUT Regulated output voltage. The output should be bypassed with small 1 mF ceramic capacitor.
B1 3
B2 2
3 EN Chip enable: Applying VEN < 0.4 V disables the regulator, Pulling VEN > 1.2 V enables the LDO.
2 GND Common ground connection
− − EPAD EPAD Expose pad should be tied to ground plane for better power dissipation
ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage (Note 1)
VIN
0.3 V to 6
V
Output Voltage
VOUT
0.3 to VIN + 0.3, max. 6
V
Chip Enable Input
VCE
0.3 to 6
V
Output Short Circuit Duration
tSC
unlimited
s
Maximum Junction Temperature
TJ 150 °C
Storage Temperature
TSTG
55 to 150
°C
ESD Capability, Human Body Model (Note 2)
ESDHBM
2000
V
ESD Capability, Machine Model (Note 2)
ESDMM
200
V
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 CHARACTERISTIS 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 EIA/JESD22A114
ESD Machine Model tested per EIA/JESD22A115
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
THERMAL CHARACTERISTICS
Rating
Symbol
Value
Thermal Characteristics, CSP4 (Note 3)
Thermal Resistance, JunctiontoAir
108
Thermal Characteristics, XDFN4 (Note 3)
Thermal Characteristics, SOT235 (Note 3)
Thermal Resistance, JunctiontoAir
Thermal Resistance, JunctiontoAir
RqJA
198.1
218
3. Measured according to JEDEC board specification. Detailed description of the board can be found in JESD517
Unit
°C/W
www.onsemi.com
2


Part Number NCP161
Description Ultra-Low Noise and High PSRR LDO Regulator
Maker ON Semiconductor
Total Page 21 Pages
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