EVAL-ADP7158 Datasheet, PDF (1/8 Pages) Analog Devices – Evaluating the ADP7158 Ultralow Noise

EVAL-ADP7158 User Guide
UG-794
One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: [phone] • Fax: [phone] • www.analog.com
Evaluating the ADP7158 Ultralow Noise, 2 A, Fixed Output,
RF Linear Regulator
FEATURES
Power supply rejection ratio (PSRR)
70 dB from 1 kHz to 100 kHz; 50 dB at 1 MHz,
VOUT = 3.3 V, VIN = 4.0 V
Low noise
0.9 µV rms total integrated noise from 100 Hz to 100 kHz
1.6 µV rms total integrated noise from 10 Hz to 100 kHz
Noise spectral density: 1.7 nV/√Hz from 10 kHz to 1 MHz
Low dropout voltage: 200 mV typical at VOUT = 3.3 V, IOUT = 2 A
Maximum output current: 2 A
Input voltage range: 2.3 V to 5.5 V
Low quiescent and shutdown current
Initial accuracy: ±0.6% at ILOAD = 10 mA
Accuracy over line, load, and temperature: ±1.5%
10-lead 3mm × 3mm LFCSP package
EVALUATION KIT CONTENTS
ADP7158CP-3.3EVALZ evaluation board
ADDITIONAL EQUIPMENT NEEDED
A dc power supply
Multimeters for voltage and current measurements
Electronic or resistive loads
EVALUATION BOARD LAYOUT
Figure 1. ADP7158CP-3.3EVALZ Printed Circuit Board (PCB) Layout
GENERAL DESCRIPTION
The ADP7158CP-3.3EVALZ evaluation board demonstrates the
operation and functionality of the ADP7158 ultralow noise, 2 A,
fixed output, radio frequency (RF) linear regulator in a 10-lead
LFCSP package.
Simple device measurements, such as line and load regulation,
dropout voltage, and ground current, can be demonstrated
using only a single voltage supply, load resistors, and a
voltmeter or an ammeter.
Complete specifications for the ADP7158 ultralow noise, 2 A,
linear regulator are available in the ADP7158 data sheet available
from Analog Devices, Inc., and should be consulted in con-
junction with this user guide when using the evaluation board.
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
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