NCP705_14 Datasheet, PDF (1/20 Pages) ON Semiconductor – 500 mA, Ultra-Low Quiescent Current, IQ 13 A, Ultra-Low Noise, LDO Voltage Regulator

NCP705
500 mA, Ultra-Low
Quiescent Current, I_Q 13 mA,
Ultra-Low Noise, LDO
Voltage Regulator
Noise sensitive RF applications such as Power Amplifiers in
satellite radios, infotainment equipment, and precision
instrumentation require very clean power supplies. The NCP705 is
500 mA LDO that provides the engineer with a very stable, accurate
voltage with ultra low noise and very high Power Supply Rejection
Ratio (PSRR) suitable for RF applications. The device doesn’t require
any additional noise bypass capacitor to achieve ultra−low noise
performance. In order to optimize performance for battery operated
portable applications, the NCP705 employs dynamic Iq management
for ultra−low quiescent current consumption at light−load conditions
and great dynamic performance.
www.onsemi.com
WDFN6
CASE 511BR
MARKING
DIAGRAM
1
XX M
XX = Specific Device Code
M = Date Code
Features
• Operating Input Voltage Range: 2.5 V to 5.5 V
• Available − Fixed Voltage Option: 0.8 V to 3.5 V
Available − Adjustable Voltage Option: 0.8 V to 5.5 V−V_DROP
• Reference Voltage 0.8 V
• Ultra−Low Quiescent Current of Typ. 13 mA
• Ultra−Low Noise: 12 mV_RMS from 100 Hz to 100 kHz
• Very Low Dropout: 230 mV Typical at 500 mA
• ±2% Accuracy Over Load/Line/Temperature
• High PSRR: 71 dB at 1 kHz
• Internal Soft−Start to Limit the Turn−On Inrush Current
• Thermal Shutdown and Current Limit Protections
• Stable with a 1 mF Ceramic Output Capacitor
• Active Output Discharge for Fast Turn−Off
• These are Pb−Free Devices
PIN CONNECTIONS
OUT 1
N/C 2
GND 3
GND
6 IN OUT 1
5 N/C ADJ 2
4 EN GND 3
GND
6 IN
5 N/C
4 EN
WDFN6 2x2 mm
(Top View)
Adjustable Version
(Top View)
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 19 of this data sheet.
Typical Applications
• PDAs, Mobile Phones, GPS, Smartphones
• Wireless Handsets, Wireless LAN, Bluetooth®, ZigBee®
• Portable Medical Equipment
• Other Battery Powered Applications
V_IN
C_IN
1 mF
ON
OFF
IN
OUT
NCP705
EN
N/C
GND
V_OUT
C_OUT
1 mF
V_IN
IN
OUT
NCP705
1 mF C_IN
EN
ADJ
ON
GND
OFF
R_{1 C1}
R₂
V_OUT
C_OUT
1 mF
Fixed Voltage Version
Adjustable Voltage Version
Figure 1. Typical Application Schematics
This document contains information on some products that are still under development.
ON Semiconductor reserves the right to change or discontinue these products without
notice.
© Semiconductor Components Industries, LLC, 2014
1
November, 2014 − Rev. 6
Publication Order Number:
NCP705/D