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PDF NCP606 Data sheet ( Hoja de datos )
| Número de pieza | NCP606 | |
| Descripción | (NCP605 / NCP606) CMOS LDO Regulator | |
| Fabricantes | ON Semiconductor | |
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NCP605, NCP606
500mA, Low IGND, CMOS
LDO Regulator with/without
Enable and with Enhanced
ESD Protection
The NCP605/NCP606 provide in excess of 500 mA of output
current at fixed voltage options or an adjustable output voltage from
5.0 V down to 1.25 V. These devices are designed for space
constrained and portable battery powered applications and offer
www.DataSheet4aUd.dciotmional features such as high PSRR, low noise operation, short
circuit and thermal protection. The devices are designed to be used
with low cost ceramic capacitors and are packaged in the DFN6 3x3.3.
NCP605 is designed without enable pin, NCP606 is designed with
enable pin.
Features
•ăOutput Voltage Options:
Adjustable, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V
•ăAdjustable Output by External Resistors from 5.0 V down to 1.25 V
•ăCurrent Limit 675 mA
•ăLow IGND (Independent of Load)
•ă$1.5% Output Voltage Tolerance Over All Operating Conditions
(Adjustable)
•ă$2% Output Voltage Tolerance Over All Operating Conditions
(Fixed)
•ăNCP605 Fixed is Direct Replacement LP8345
•ăTypical Noise Voltage of 50 mVrms without a Bypass Capacitor
•ăEnhanced ESD Ratings: 4 kV Human Body Mode (HBM)
400 V Machine Model (MM)
•ăThese are Pb-Free Devices
Typical Applications
•ăHard Disk Drivers
•ăNotebook Computers
•ăBattery Power Electronics
•ăPortable Instrumentation
Vin
Cin
Vin Vout
NCP605
(Fixed)
SENSE
GND
Vout
Cout
http://onsemi.com
MARKING
DIAGRAM
1
DFN6, 3x3.3
MN SUFFIX
CASE 506AX
xxxx
zzz
AYWWG
G
xxxx
zzz
A
Y
WW
G
= P605 or P606
= ADJ, 150, 180, 250, 280,
300, 330, 500
= Assembly Location
= Year
= Work Week
= Pb-Free Package
(Note: Microdot may be in either location)
NCP605 PIN CONNECTIONS
DFN6 3x3.3mm
Vin 1
6 Vin
GND 2 GND 5 SENSE/ADJ
NC 3
4 Vout
(TOP VIEW)
NCP606 PIN CONNECTIONS
DFN6 3x3.3mm
Vin 1
GND 2
GND
6 Vin
5 SENSE/ADJ
EN 3
4 Vout
(TOP VIEW)
Figure 1. NCP605 Typical Application Circuit for Fixed
Version (1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 5.0 V)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
©Ă Semiconductor Components Industries, LLC, 2007
November, 2007 - Rev. 0
1
Publication Order Number:
NCP605/D
1 page  
NCP605, NCP606
ELECTRICAL CHARACTERISTICS
Vin = (Vout + 0.5 V) or 1.5 V, whichever is higher, Cin = 1 mF, Cout = 1 mF, for typical values TA = 25°C, for min/max values TA = -40°C to
85°C; unless otherwise noted. (Notes 9 and 10)
Parameter
Test Conditions
Symbol Min Typ Max Unit
Power Supply Ripple Rejection (Note 11)
Iout = 500 mA
Vout = 1.25 V
Vin - Vout = 1 V
f = 120 Hz, 0.5 VPP
f = 1 kHz, 0.5 VPP
f = 10 kHz, 0.5 VPP
PSRR
dB
- 62 -
- 55 -
- 40 -
Output Noise Voltage (Note 11)
f = 10 Hz to 100 kHz, Vout = 1.25 V
Vn - 50 - mVrms
Thermal Shutdown Temperature (Note 11)
TSD - 175 - °C
Thermal Shutdown Hysteresis (Note 11)
TSH - 10 - °C
7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
www.DataSheet48U..cPomerformance guaranteed over the indicated operating temperature range by design and/or characterization 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. Maximum dropout voltage is limited to minimum input voltage Vin = 1.7 V recommended for guaranteed operation at maximum output
current.
10. Refer to application information section.
11. Values based on design and/or characterization.
http://onsemi.com
5
5 Page 
NCP605, NCP606
temperature (TA) is 25°C. See Figure 23 for RqJA versus
PCB area.
The power dissipated by the NCP605/NCP606 can be
calculated from the following equations:
ǒ ǓPD [ Vin IGND@IOUT ) IoutǒVin * VoutǓ
(eq. 4)
or
PD(MAX) ) ǒVout
Vin(MAX) [
Iout ) IGND
IoutǓ
(eq. 5)
250
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
NCP605/NCP606, and make traces as short as possible.
200
www.DataSheet4U.com
150
100
50
FR4 = 1.0 oz
FR4 = 2.0 oz
0
0 200 400 600 800
COPPER AREA (mm2)
Figure 23. Thermal Resistance vs. Copper Area
http://onsemi.com
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet NCP606.PDF ] | |
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