ADP1755ACPZ-R7
Analog Devices ADP1755ACPZ-R7 (LDO linear regulator) is used for system regulation, battery charging and power conversion. Genuine products; electrical characteristics, pinout and package per the official datasheet. Contact us for pricing, samples and stock.
- Package
- LFCSP-16
Product overview
Analog Devices ADP1755ACPZ-R7 (LDO linear regulator) is used for system regulation, battery charging and power conversion. Genuine products; electrical characteristics, pinout and package per the official datasheet. Contact us for pricing, samples and stock.
- Manufacturer
- ADI
- Part number
- ADP1755ACPZ-R7
- Category
- LDO Linear Regulators
- Package
- LFCSP-16
- Packaging
- Tape & Reel
- Condition
- New & Original
- Compliance
- RoHS Compliant
- Lifecycle
- Confirm with manufacturer
- Lead time / MOQ
- Confirm with quotation
Technical parameters
41 parametersConstruction
- IOUT = 100 mA
- 400 μA
- IOUT = 100 mA, TJ = −40°C to +125°C
- 800 μA
- IOUT = 0.8
- 0.9 mA
- IOUT = 0.8 A, TJ = −40°C to +125°C
- 1.2 mA
- EN = GND, VIN = 1.6 V, TJ = −40°C to +85°C
- 30 μA
- EN = GND, VIN = 3.6 V, TJ = −40°C to +85°C
- 100 μA
- (ADP1752) IOUT = 10 mA to 0.8
- +1.5 %
- 10 mA < IOUT < 0.8 A, TJ = −40°C to +125°C
- +2 %
- (ADP1753)2 IOUT = 10 mA to 0.8
- 0.508 V
- IOUT = 100 mA, VOUT ≥ 1.8 V, TJ = −40°C to +125°C
- 16 mV
- IOUT = 0.8 A, VOUT ≥ 1.8
- 70 mV
- IOUT = 0.8 A, VOUT ≥ 1.8 V, TJ = −40°C to +125°C
- 140 mV
- START-UP TIME5 tSTART-UP CSS = 0 nF, IOUT = 10 mA
- 200 μs
- CSS = 10 nF, IOUT = 10 mA
- 5.2 ms
- Thermal Shutdown Threshold TSSD TJ rising
- 150 C
- Thermal Shutdown Hysteresis TSSD-HYS
- 15 C
- PG Output Logic High PGHIGH 1.6 V ≤ VIN ≤ 3.6 V, IOH < 1 μA
- 1.0 V
- EN Input Logic High VIH 1.6 V ≤ VIN ≤ 3.6
- 1.2 V
- EN Input Logic Low VIL 1.6 V ≤ VIN ≤ 3.6
- 0.4 V
- Hysteresis UVLOHYS TJ = 25°C
- 100 mV
- OUTPUT NOISE OUTNOISE 10 Hz to 100 kHz, VOUT = 0.75
- 23 μVrms
- 10 Hz to 100 kHz, VOUT = 2.5
- 65 μVrms
- 1 kHz, VOUT = 0.75
- 65 dB
- 1 kHz, VOUT = 2.5
- 56 dB
- 10 kHz, VOUT = 0.75
- 65 dB
- 10 kHz, VOUT = 2.5
- 56 dB
Performance
- INPUT VOLTAGE RANGE VIN TJ = −40°C to +125°C
- 3.6 V
- OPERATING SUPPLY CURRENT1 IGND IOUT = 500 μA
- 90 μA
- SHUTDOWN CURRENT IGND-SD EN = GND, VIN = 1.6
- 2 μA
- Fixed Output Voltage Accuracy VOUT IOUT = 10 mA
- +1 %
- Adjustable Output Voltage Accuracy VADJ IOUT = 10 mA
- 0.5 V
- DROPOUT VOLTAGE4 VDROPOUT IOUT = 100 mA, VOUT ≥ 1.8
- 10 mV
- CURRENT-LIMIT THRESHOLD6
- 1.4 A
- PG Output Logic Low PGLOW 1.6 V ≤ VIN ≤ 3.6 V, IOL < 2 mA
- 0.4 V
- Output Voltage Falling PGFALL 1.6 V ≤ VIN ≤ 3.6
- −10 %
- Output Voltage Rising PGRISE 1.6 V ≤ VIN ≤ 3.6
- −6.5 %
- EN Input Leakage Current VI-LEAKAGE EN = VIN or
- 0.1 μA
- Input Voltage Rising UVLORISE TJ = −40°C to +125°C
- 1.58 V
- Input Voltage Falling UVLOFALL TJ = −40°C to +125°C
- 1.25 V
- SOFT START CURRENT ISS 1.6 V ≤ VIN ≤ 3.6
- 0.9 μA
- SENSE INPUT BIAS CURRENT SNSI-BIAS 1.6 V ≤ VIN ≤ 3.6
- 10 μA
Specifications & documentation
Use the official manufacturer documentation to verify electrical characteristics, package dimensions and operating limits before design approval.
Frequently asked questions
Common pre-quotation questions and selection notes to help you verify key parameters and sourcing before requesting a quote.
What is a drop-in replacement for ADP1755ACPZ-R7?
ADP1755ACPZ-R7 is a LFCSP-16 LDO, +1 %, up to 90 μA. Pin-compatible families include LM1117 / NCP1117 / LD1117 (same SOT-223 or TO-252 footprint). Match dropout voltage and the output-capacitor ESR rule before swapping.
LDO or DC-DC — which should I use?
Use an LDO for low-current, noise-sensitive rails (analog / RF, small ΔV). Use a DC-DC (buck) when the input-output voltage gap is large or efficiency / battery life matters. A common hybrid: DC-DC first, then LDO to clean the rail.
What output capacitor ESR does it require?
Legacy 1117-class LDOs need output-cap ESR between 0.3 Ω and 22 Ω; all-ceramic caps (very low ESR) can oscillate — add a 1–3 Ω series resistor or a small electrolytic. Modern LDOs are stable with low-ESR MLCCs.
How do I verify the part is genuine / avoid counterfeit?
Buy only from authorized or franchised channels. On receipt, check: (1) laser-etched markings that solvent will not remove; (2) batch / lot code consistent between label and device; (3) original reel or tube packaging; (4) request traceability documents (CoC, date code). For critical parts, third-party X-ray / decapsulation testing is recommended.
How do I read the markings / date code on a chip?
Most active ICs use a 4-digit date code YYWW (year + week, e.g. 2345 = 2023 week 45). The top mark is manufacturer logo + base part number + lot code. For SMD code lookup, search by "marking code + package" on AllDataSheet / Octopart / LCSC.
What does the package code mean (TO-220, SOT-23, QFP…)?
Package codes describe the physical form factor and pin layout — critical when sourcing, because electrically equivalent parts in different packages will not fit the PCB. Common: TO-220 (3-terminal power), SOT-23 (3-pin small signal), DIP / SOIC (through-hole / SMD ICs), QFP / QFN (MCUs, processors).
What if my original model is discontinued (EOL / NRND)?
Three options: (1) the manufacturer’s recommended replacement; (2) franchised distributor legacy stock; (3) a functionally compatible cross-brand part — provided pinout and key parameters match. Always evaluate on a real board before mass swap.
What is the minimum order quantity (MOQ) and lead time?
We support both sample and volume orders. Minimum order quantity, stock availability and lead time are confirmed per inquiry — tell us your model and quantity and we will quote. Sample quantities for design validation are supported.
Can I get the datasheet and samples?
The full datasheet is linked on this page. For parts without a direct datasheet, we can locate the manufacturer document on request. Sample requests are supported — contact us with your model and quantity.
Request confirmation of current stock, date code, packaging, price and delivery terms. Product information does not constitute a binding offer; final specifications are confirmed with your quotation.