ADM7171ACPZ-R7 Positive Linear Regulators (LDO) by Analog Devices

Status: Production
Series: ADM7171
RoHS: Compliant
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The ADM7171 is a CMOS, low dropout linear regulator (LDO) that operates from 2.3 V to 6.5 V and provides up to 1 A of output current. This high output current LDO is ideal for regulation of high performance analog and mixed signal circuits operating from 6 V down to 1.2 V rails. Using an advanced proprietary architecture, the device provides high power supply rejection and low noise, and achieves excellent line and load transient response with just a small 4.7 μF ceramic output capacitor. Load transient response is typically 1.5 μs for a 1 mA to 500 mA load step.The ADM7171 is available in 17 fixed output voltage options. The following voltages are available from stock: 1.3 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, 4.2 V, and 5.0 V. Additional voltages that are available by special order are: 1.5 V, 1.85 V, 2.0 V, 2.2 V, 2.7 V, 2.75 V, 2.8 V, 2.85 V, 3.8 V, and 4.6 V. An adjustable version is also available that allows output voltages that range from 1.2 V to VIN − VDO with an external feedback divider.Inrush current can be controlled by adjusting the start-up time via the soft start pin. The typical start-up time with a 1 nF soft start capacitor is 1.0 ms.The ADM7171 regulator output noise is 5 μV rms independent of the output voltage. The ADM7171 is available in an 8-lead, 3 mm × 3 mm LFCSP, making it not only a very compact solution, but also providing excellent thermal performance for

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Features

Input voltage range: 2.3 V to 6.5 V
Maximum load current: 1 A
Low noise: 5 μV rms independent of output voltage at 100 Hz to 100 kHz
Fast transient response: 1.5 μs for 1 mA to 500 mA load step
60 dB PSRR at 100 kHz
Low dropout voltage: 42 mV at 500 mA load, VOUT = 3 V
Initial accuracy: −0.5% (minimum), +1% (maximum)
Accuracy over line, load, and temperature: ±1.5%
Quiescent current, IGND = 0.7 mA with no load
Low shutdown current: 0.25 μA at VIN = 5 V
Stable with small 4.7 μF ceramic output capacitor
Adjustable and fixed output voltage options: 1.2 V to 5.0 V
Adjustable output from 1.2 V to VIN − VDO
Precision enable
Adjustable soft start
8-lead, 3 mm × 3 mm LFCSP package
Supported by ADIsimPower tool

Alternative Descriptions

1A Hi PSRR FT LDO ADJVo | Analog Devices
Ldo, Adj, 1A, Lfcsp-Ep, -40 To 125Deg C Rohs Compliant: Yes |Analog Devices ADM7171ACPZ-R7 | Newark Electronics
LDO, ADJ, 1A, LFCSP-EP, -40 TO 125DEG C | element14
POWER MANAGEMENT IC | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADM7171ACPZ-R7?

Additional datasheets, footprints and schematics for ADM7171ACPZ-R7 are listed on our Part Details page. You can also find images and similar parts to ADM7171ACPZ-R7 on this page.

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What category does ADM7171ACPZ-R7 fall under?

The ADM7171ACPZ-R7 is listed under Positive Linear Regulators (LDO).

Can I view similar or alternative parts?

You can view similar parts to ADM7171ACPZ-R7 when available in the Positive Linear Regulators (LDO) range under the specifications section at the bottom of the details page.

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Is the ADM7171ACPZ-R7 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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