ADI ADP7183ACPZN3.3-R7

The ADP7183 is a complementary metal oxide semiconductor (CMOS), low dropout (LDO) linear regulator that operates from -2.0 V to -5.5 V and provides up to -300 mA of output current. This LDO regulator is ideal for regulation of high performance analog and mixed-signal circuits operating from -0.5 V down to -4.5 V. Using an advanced proprietary architecture, the ADP7183 provides high PSRR and low noise, and it achieves excellent line and load transient response with a small 4.7 μF ceramic output capacitor. The ADP7183 is available in 15 fixed output voltage options. The following voltages are available from stock: -0.5 V, -1.0 V, -1.2 V, -1.5 V, -1.8 V, -2.0 V, -2.5 V, -3.0 V, and -3.3 V. Additional voltages available by special order are -0.8 V, -0.9 V, -1.3 V, -2.8 V, -4.2 V, and -4.5 V. An adjustable version is also available that allows output voltages that range from -0.5 V to -VIN + 0.5 V with an external feedback divider. The enable logic feature is capable of interfacing with positive or negative logic levels for maximum flexibility. The ADP7183 regulator output noise is 4 μV rms independent of the output voltage. The ADP7183 is available in an 8-lead, 2 mm×2 mm LFCSP, making it not only a very compact solution but also providing excellent thermal performance for applications requiring up to -300 mA of output current in a small, low profile footprint.

• Input voltage range: -2.0 V to -5.5 V
• Maximum output current: -300 mA
• Fixed output voltage options: -0.5 V to -4.5 V
• Adjustable output from -0.5 V to -VIN + 0.5 V
• Low output noise: 4 μV rms from 100 Hz to 100 kHz
• Noise spectral density: 20 nV/√Hz, 10 kHz to 1 MHz
• Power supply rejection ratio (PSRR) at -300 mA load: 75 dB typical at 10 kHz, 62 dB typical at 100 kHz, 40 dB typical at 1 MHz
• Low dropout voltage: -130 mV typical at IOUT = -300 mA
• Initial output voltage accuracy (VOUT): ±0.5% at IOUT = -10 mA
• Output voltage accuracy over line, load, and temperature: ±2.6%
• Operating supply current (IGND): -0.6 mA typical at no load
• Low shutdown current: -2 μA typical at VIN = -5.5 V
• Stable with small 4.7 μF ceramic input and output capacitor
• Positive or negative enable logic
• Current-limit and thermal overload protection
• 8-lead, 2 mm×2 mm LFCSP package
• Supported by ADIsimPOWER voltage regulator design tool

• Regulation to noise sensitive applications: analog-to-digital converters (ADCs), digital-to-analog converters (DACs), precision amplifiers
• Communications and infrastructure
• Medical and healthcare
• Industrial and instrumentation