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NCP706A Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer NCP706A
Beschreibung 1% Precision Very Low Dropout Voltage Regulator
Hersteller ON Semiconductor
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Gesamt 9 Seiten
NCP706A Datasheet, Funktion
NCP706A
1 A, 1% Precision Very Low
Dropout Voltage Regulator
with Enable and Active
Discharge
The NCP706A is a Very Low Dropout Regulator which provides up
to 1 A of load current and maintains excellent output voltage accuracy
of 1% including line, load and temperature variations. The operating
input voltage range from 2.4 V up to 5.5 V makes this device suitable
for Li−ion battery powered products as well as post−regulation
applications. The product is available in 3.0 V fixed output voltage
option. NCP706A is fully protected against overheating and output
short circuit.
Very small 8−pin XDFN8 1.6 x 1.2, 04P package makes the device
especially suitable for space constrained portable applications such as
tablets and smartphones. Parts feature active output discharge
function.
Features
Operating Input Voltage Range: 2.4 V to 5.5 V
Fixed Output Voltage Option: 3.0 V
Other Output Voltage Options Available on Request.
Low Quiescent Current of Typ. 200 mA
Very Low Dropout: 155 mV Max. at IOUT = 1 A
±1% Accuracy Over Load/Line/Temperature
High PSRR: 60 dB at 1 kHz
Internal Soft−Start to Limit the Inrush Current
Thermal Shutdown and Current Limit Protections
Stable with a 1.0 mF Ceramic Output Capacitor
Available in XDFN8 1.6 x 1.2, 04P 8−pin Package
Active Output Discharge
These are Pb−Free Devices
Typical Applications
Tablets, Smartphones,
Wireless Handsets, Portable Media Players
Portable Medical Equipment
Other Battery Powered Applications
VIN = 2.4 (3.3) − 5.5 V
IN
OUT
CIN
NCP706A
EN SNS
ON
OFF
GND
VOUT = 3.0 V @ 1 A
COUT
1.0 mF
Ceramic
http://onsemi.com
XDFN8
CASE 711AS
MARKING
DIAGRAM
AEMG
G
AE = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTION
OUT 1
8 IN
OUT 2
7 IN
N/C 3
6 EN
SNS 4
5 GND
(Top View)
IN 8
1 OUT
IN 7
2 OUT
EN 6
3 N/C
GND 5
4 SNS
(Bottom View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 8 of this data sheet.
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2014
November, 2014 − Rev. 0
1
Publication Order Number:
NCP706A/D






NCP706A Datasheet, Funktion
NCP706A
TYPICAL CHARACTERISTICS
2.5
VIN = 5.5 V
VEN = 0
2.0 CIN = COUT = 4.7 mF
TA = 25°C
1.5
1.0
0.5
0.0
0.0
VOUT(NOM) = 3.0 V
1.0 2.0 3.0 4.0 5.0
FORCED OUTPUT VOLTAGE (V)
Figure 9. Reverse Leakage Current in
Shutdown
80
VIN = 3.5 V + 200 mVPP Modulation
IOUT = 500 mA
TA = 25°C
60 VOUT(NOM) = 3.0 V
40
20
0
0.1
COUT = 1 mF
COUT = 2.2 mF
COUT = 4.7 mF
1 10 100 1000
FREQUENCY (kHz)
Figure 10. PSRR vs. Frequency & Output
Capacitor
80
VIN = 3.5 V + 200 mVPP Modulation
COUT = 1 mF
TA = 25°C
60 VOUT(NOM) = 3.0 V
40
20
0
0.1
IOUT = 10 mA
IOUT = 100 mA
IOUT = 500 mA
1 10
FREQUENCY (kHz)
100
Figure 11. PSRR vs. Frequency & Output
Current
1000
3.5 IOUT = 500 mA
3.0
VIN = 4.0 V
TA = 25°C
2.5 VOUT(NOM) = 3.0 V
2.0
1.5
1.0
0.5
0.0
0.01
COUT = 1 mF
COUT = 2.2 mF
0.1 1
10 100 1000
FREQUENCY (kHz)
Figure 12. Output Noise Density vs. Frequency
http://onsemi.com
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