Datasheet ADP150 (Analog Devices)

Ultralow Noise, 150 mA CMOS Linear Regulator Data Sheet ADP150 FEATURES TYPICAL APPLICATION CIRCUITS Ultra low noise: 9 μV rms, independent of VOUT V V No additional noise bypass capacitor required IN = 2.3V OUT = 1.8V 1 VIN VOUT 5 C Stable with 1 μF ceramic input and output capacitors IN COUT 1µF 2 1µF GND Maximum output current: 150 mA ON Input voltage range: 2.2 V to 5.5 V 3 EN NC 4
01
OFF
0
Low quiescent current
3- 34
NC = NO CONNECT
08
IGND = 10 μA with zero load
Figure 1. 5-Lead TSOT with Fixed Output Voltage, 1.8 V
Low shutdown current: <1 μA Low dropout voltage: 105 mV @ 150 mA load 1 2 Initial output voltage accuracy: ±1% V VOUT = 1.8V IN = 2.3V Up to 14 fixed output voltage options: 1.8 V to 3.3 V VIN VOUT C A COUT IN PSRR performance of 70 dB at 10 kHz 1µF 1µF TOP VIEW (Not to Scale) Current limit and thermal overload protection ON
2
EN GND Logic-controlled enable
00
B
3-
OFF
34
5-lead TSOT package
08
4-ball, 0.8 mm × 0.8 mm, 0.4 mm pitch WLCSP
Figure 2. 4-Ball WLCSP with Fixed Output Voltage, 1.8 V
APPLICATIONS Mobile phones Digital camera and audio devices Portable and battery-powered equipment Post dc-to-dc regulation Portable medical devices RF, PLL, VCO, and clock power supplies GENERAL DESCRIPTION
The ADP150 is an ultralow noise (9 μV), low dropout, linear The ADP150 is specifically designed for stable operation with regulator that operates from 2.2 V to 5.5 V and provides up to tiny 1 μF ± 30% ceramic input and output capacitors to meet 150 mA of output current. The low 105 mV dropout voltage at the requirements of high performance, space-constrained 150 mA load improves efficiency and allows operation over a applications. wide input voltage range. The ADP150 is available in 14 fixed output voltage options, Using an innovative circuit topology, the ADP150 achieves ultralow ranging from 1.8 V to 3.3 V. noise performance without the necessity of an additional noise Short-circuit and thermal overload protection circuits prevent bypass capacitor, making it ideal for noise sensitive analog and damage in adverse conditions. The ADP150 is available in tiny RF applications. The ADP150 also achieves ultralow noise 5-lead TSOT and 4-ball, 0.4 mm pitch WLCSP packages for the performance without compromising PSRR or line and load smallest footprint solution to meet a variety of portable power transient performance. The ADP150 offers the best combination applications. of ultralow noise and quiescent current consumption to maximize battery life in portable applications.
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Document Outline FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUITS GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS RECOMMENDED SPECIFICATIONS: INPUT AND OUTPUT CAPACITOR ABSOLUTE MAXIMUM RATINGS THERMAL DATA THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION CAPACITOR SELECTION Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties UNDERVOLTAGE LOCKOUT ENABLE FEATURE CURRENT LIMIT AND THERMAL OVERLOAD PROTECTION THERMAL CONSIDERATIONS PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE NOTES