NCP4671DSN09T1G Datasheet, PDF (1/23 Pages) ON Semiconductor – 400 mA, Dual Rail Ultra Low Dropout Linear Regulator

NCP4671
400 mA, Dual Rail Ultra Low
Dropout Linear Regulator
The NCP4671 is a CMOS Dual Supply Rail Linear Regulator
designed to provide very low output voltages. The Dual Rail
architecture which separates the power for the LDO control circuitry
(provided via the Vbias pin) from the main power path (Vin) offers
ultra−low dropout performance, allowing the device to operate from
input voltages down to 0.9 V and to generate a fixed high accuracy
output voltage as low as 0.6 V.
The NCP4671 offers excellent transient response with very low
quiescent currents. The family is available in a variety of packages:
SC−70, SOT23 and a small, ultra thin 1.2 x 1.2 x 0.4mm XDFN.
Features
• Bias Supply Voltage Range : 2.4 V to 5.25 V (V_OUT < 0.8 V)
Set V_OUT + 1.6 V to 5.25 V (V_OUT ≥ 0.8 V)
• Power Input Voltage Range : 0.9 V to V_BIAS (V_OUT < 0.8 V)
Set V_OUT + 0.1 V to V_BIAS (V_OUT ≥ 0.8 V)
• Output Voltage Range: 0.6 to 1.5 V (available at 0.1 steps)
• Very Low Dropout: 180 mV Typ. at 400 mA
• Quiescent Current: 28 mA
• Standby Current: 0.1 mA
• ±15 mV Output Voltage Accuracy (T_A = 25°C)
• High PSRR: 80 dB at 1 kHz (Ripple at VIN)
50 dB at 1 kHz (Ripple at VBIAS)
• Current Fold Back Protection Typ. 120 mA
• Available in XDFN, SC−70, SOT23 Package
• These are Pb−Free Devices
Typical Applications
• Battery Powered Equipments
• Portable Communication Equipments
• Cameras, VCRs and Camcorders
http://onsemi.com
MARKING
DIAGRAMS
SC−70
CASE 419A
(In Development)
XXX
XMM
1
XDFN6
CASE 711AA
XX
MM
1
SOT−23−5
CASE 1212
XXXMM
1
XX, XXX= Specific Device Code
M, MM = Date Code
A
= Assembly Location
Y
= Year
W
= Work Week
G
= Pb−Free Package
(*Note: Microdot may be in either location)
VIN
DC/DC
converter
C1 C2
1m
1m
NCP4671x
VIN
VBIAS
VOUT
CE ^GND
ORDERING INFORMATION
See detailed ordering, marking and shipping information in the
package dimensions section on page 20 of this data sheet.
VOUT
C3
2m 2
Figure 1. Typical Application Schematic
© Semiconductor Components Industries, LLC, 2012
1
February, 2012 − Rev. 2
Publication Order Number:
NCP4671/D