Datasheet ADP7118 (Analog Devices)

20 V, 200 mA, Low Noise, CMOS LDO Linear Regulator Data Sheet ADP7118 FEATURES TYPICAL APPLICATION CIRCUITS Low noise: 11 μV rms independent of fixed output voltage ADP7118 PSRR of 88 dB at 10 kHz, 68 dB at 100 kHz, 50 dB at 1 MHz, VIN = 6V VOUT = 5V VIN VOUT VOUT ≤ 5 V, VIN = 7 V CIN COUT 2.2µF 2.2µF Input voltage range: 2.7 V to 20 V SENSE/ADJ Maximum output current: 200 mA ON Initial accuracy: ±0.8% EN SS GND C OFF SS Accuracy over line, load, and temperature 1nF
001 9-
−1.2% to +1.5%, T
1184
J = −40°C to +85°C
Figure 1. ADP7118 with Fixed Output Voltage, 5 V
±1.8%, TJ = −40°C to +125°C Low dropout voltage: 200 mV (typical) at a 200 mA load, ADP7118 VOUT = 5 V VIN = 7V VOUT = 6V VIN VOUT User programmable soft start (LFCSP and SOIC only) CIN C 2kΩ OUT Low quiescent current, I 2.2µF 2.2µF GND = 50 μA (typical) with no load SENSE/ADJ 10kΩ Low shutdown current: 1.8 μA at VIN = 5 V, 3.0 μA at VIN = 20 V ON Stable with a small 2.2 μF ceramic output capacitor EN SS GND C OFF SS Fixed output voltage options: 1.8 V, 2.5 V, 3.3 V, 4.5 V, and 5.0 V 1nF
002
16 standard voltages between 1.2 V and 5.0 V are available
11849- Figure 2. ADP7118 with 5 V Output Adjusted to 6 V
Adjustable output from 1.2 V to VIN – VDO, output can be adjusted above initial set point Precision enable 2 mm × 2 mm, 6-lead LFCSP, 8-Lead SOIC, 5-Lead TSOT AEC-Q100 qualified for automotive applications APPLICATIONS Regulation to noise sensitive applications ADC and DAC circuits, precision amplifiers, power for VCO VTUNE control Communications and infrastructure Medical and healthcare Industrial and instrumentation Supported by ADIsimPower tool GENERAL DESCRIPTION
The ADP7118 is a CMOS, low dropout (LDO) linear regulator Additional voltages available by special order are 1.5 V, 1.85 V, that operates from 2.7 V to 20 V and provides up to 200 mA of 2.0 V, 2.2 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, 4.2 V, and 4.6 V. output current. This high input voltage LDO is ideal for the Each fixed output voltage can be adjusted above the initial set regulation of high performance analog and mixed-signal circuits point with an external feedback divider. This allows the ADP7118 operating from 20 V down to 1.2 V rails. Using an advanced to provide an output voltage from 1.2 V to VIN − VDO with high proprietary architecture, the device provides high power supply PSRR and low noise. rejection, low noise, and achieves excellent line and load transient response with a small 2.2 μF ceramic output capacitor. The User programmable soft start with an external capacitor is ADP7118 regulator output noise is 11 μV rms independent of available in the LFCSP and SOIC packages. the output voltage for the fixed options of 5 V or less. The ADP7118 is available in a 6-lead, 2 mm × 2 mm LFCSP The ADP7118 is available in 16 fixed output voltage options. making it not only a very compact solution, but it also provides The following voltages are available from stock: 1.2 V excellent thermal performance for applications requiring up to (adjustable), 1.8 V, 2.5 V, 3.3 V, 4.5 V, and 5.0 V. 200 mA of output current in a small, low profile footprint. The ADP7118 is also available in a 5-lead TSOT and an 8-lead SOIC.
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Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INPUT AND OUTPUT CAPACITANCE, RECOMMENDED SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION ADIsimPOWER DESIGN TOOL CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties PROGRAMABLE PRECISION ENABLE SOFT START NOISE REDUCTION OF THE ADP7118 IN ADJUSTABLE MODE EFFECT OF NOISE REDUCTION ON START-UP TIME CURRENT-LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE AUTOMOTIVE PRODUCTS