ADM7160AUJZ-1.8-R2(Rev0) View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADM7160AUJZ-1.8-R2 Datasheet PDF : 24 Pages
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Data Sheet
FEATURES
PSRR performance of 54 dB at 100 kHz
Ultralow noise independent of VOUT
3 µV rms, 0.1 Hz to 10 Hz
9.5 µV rms, 0.1 Hz to 100 kHz
9 µV rms, 10 Hz to 100 kHz
17 µV rms, 10 Hz to 1 MHz
Low dropout voltage: 150 mV at 200 mA load
Maximum output current: 200 mA
Input voltage range: 2.2 V to 5.5 V
Low quiescent and shutdown current
Initial accuracy: ±1%
Accuracy over line, load, and temperature: −2.5%/+1.5%
5-lead TSOT package and 6-lead LFCSP package
APPLICATIONS
ADC/DAC power supplies
RF, VCO, and PLL power supplies
Post dc-to-dc regulation
GENERAL DESCRIPTION
The ADM7160 is an ultralow noise, low dropout linear
regulator that operates from 2.2 V to 5.5 V and provides up to
200 mA of output current. The low 150 mV dropout voltage at
200 mA load improves efficiency and allows operation over a
wide input voltage range.
Using an innovative circuit topology, the ADM7160 achieves
ultralow noise performance without the need for a bypass
capacitor, making the device ideal for noise-sensitive analog
front-end and RF applications. The ADM7160 also achieves
ultralow noise performance without compromising PSRR or
transient line and load performance.
Current-limit and thermal overload protection circuits prevent
damage under adverse conditions. The ADM7160 also includes
an internal pull-down resistor on the EN input.
Ultralow Noise,
200 mA Linear Regulator
ADM7160
APPLICATION CIRCUIT
VIN = 2.9V
CIN
4.7µF
ADM7160
1 VIN VOUT 5
2 GND
ON
OFF
3 EN
NC 4
NC = NO CONNECT
VOUT = 2.5V
COUT
4.7µF
2.5V TO 5V
0V TO VREF
VDD VREF
IN+
DVDD
16-BIT/18-BIT ADC
IN–
VDD
DIGITAL
OUTPUT
1.8V TO 5V
Figure 1. ADM7160 Powering a 16-Bit/18-Bit ADC
The ADM7160 is specifically designed for stable operation
with tiny 1 µF, ±30% ceramic input and output capacitors to
meet the requirements of high performance, space constrained
applications.
The ADM7160 is available in tiny 5-lead TSOT and 6-lead
LFCSP packages with 16 fixed output voltage options, ranging
from 1.1 V to 3.3 V. The LFCSP offers a very compact solution
that provides excellent thermal performance for applications
that require up to 200 mA of output current in a small, low
profile footprint.
Rev. 0
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