My Inquiry
My Account
NXP Semiconductors SA57000-33D,115
- Part No.:
- SA57000-33D,115
- Manufacturer:
- NXP Semiconductors
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SA57000-33D,115.pdf
- Description:
- IC REG LINEAR 3.3V 150MA 5SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,105
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA57000-33D,115 from NXP Semiconductors (formerly Philips) is a CapFREE™ 3.3 V, 150 mA low-dropout linear regulator with no external capacitor requirement, 30 µVRMS output noise, 55 mV dropout at 50 mA, thermal warning (127 °C), and shutdown (144 °C). It serves as a compact, low-noise power supply for portable RF and baseband circuits in cellular handsets.
For engineers reviewing the SA57000-33D,115 datasheet, SA57000-33D,115 pinout, SA57000-33D,115 application, or SA57000-33D,115 equivalent, key selection criteria include capacitorless stability, ultra-low noise without bypass caps, logic-controlled enable via PWRON, PWROK status/thermal alert output, and SOT23-5 footprint compatibility in high-density battery-powered designs.
Technical Context
The SA57000-33D,115 integrates bandgap reference, error amplifier, pass transistor, thermal sensor, and dual-threshold comparator driving the PWROK open-drain output. Its CapFREE™ architecture eliminates ESR-dependent stability constraints, enabling direct drive of ceramic loads from 0 to 100 µF.
It features two independent thermal thresholds: 127 °C ±2 °C triggers PWROK low (thermal warning), while 144 °C ±2 °C forces full shutdown with 13 °C hysteresis. The PWRON pin accepts 0.3×VIN to 0.7×VIN logic thresholds for controlled enable/disable with 50 nA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 3.3 V ±2% over –40 °C to +85 °C; enables stable core/bias rail for 3.3 V logic and RF ICs |
| Dropout voltage | 55 mV @ 50 mA; allows operation down to VIN = 3.355 V, extending battery runtime in single-cell Li-ion systems |
| Output noise | 30 µVRMS (10 Hz–100 kHz); meets stringent noise requirements for RF transceivers and ADC reference supplies |
| Ground current | 85 µA typical @ 1–150 mA load; minimizes quiescent power loss in always-on subsystems |
| Thermal warning | PWROK asserts low at 127 °C ±2 °C; provides early system-level thermal management signal before shutdown |
| Shutdown current | 50 nA typical; supports ultra-low-power deep-sleep modes in portable devices |
| Line regulation | 0.1%/V; maintains tight output accuracy across input voltage sag during battery discharge |
| Load regulation | 0.02%/mA; ensures stable voltage under dynamic load transients up to 150 mA |
Pinout & Package
Package: SOT23-5 (SO5), plastic small outline, 5-lead, 1.6 mm body width (SOT680-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply connection | Accepts 3.4 V to 5.5 V; no input bypass capacitor required due to internal compensation |
| GND (Pin 2) | Power ground reference | Common return path for all internal circuitry; must be low-impedance for noise control |
| PWRON (Pin 3) | Logic-enable input | Active-HIGH; <0.3×VIN disables regulator with 50 nA quiescent draw; connect to VIN for always-on operation |
| PWROK (Pin 4) | Open-drain status output | Asserts LOW for thermal warning (127 °C) or output undervoltage (>6% drop); requires external pull-up |
| VOUT (Pin 5) | Regulated output | Delivers up to 150 mA; stable with zero external capacitance; supports ceramic, tantalum, or electrolytic loads |
Key Features
| Feature | Design Value |
|---|---|
| CapFREE™ architecture | Eliminates need for output capacitor-enables direct connection to load with any ESR, simplifying layout and reducing BOM count |
| Dual thermal monitoring | Separate 127 °C warning and 144 °C shutdown thresholds provide graduated thermal response for system-level fault handling |
| Low-noise regulation | 30 µVRMS output noise without external bypass cap-avoids noise-critical post-regulation filtering in RF sections |
| Logic-controlled enable | PWRON pin supports microcontroller-driven power sequencing with sub-100 nA off-state current |
| Integrated power OK indicator | PWROK combines undervoltage detection and thermal warning into one open-drain signal-reduces GPIO usage on host processor |
Applications
| Cellular Handset RF Front-End | Portable Medical Sensor Node |
|---|---|
Use Scenario: Powering low-noise LNA and mixer stages in GSM/UMTS transceivers where supply ripple directly impacts receiver sensitivity. IC Role / Device Role / Timing Role: Primary 3.3 V analog supply regulator with ultra-low noise and fast transient response. Use Value: 30 µVRMS noise avoids degradation of SNR in RF signal chains; CapFREE™ allows placement adjacent to RF ICs without capacitor footprint. | Use Scenario: Supplying ultra-low-power ADC, op-amp, and Bluetooth LE radio in wearable ECG patch with coin-cell battery. IC Role / Device Role / Timing Role: Main system regulator delivering stable 3.3 V to mixed-signal blocks during intermittent sensing bursts. Use Value: 55 mV dropout extends usable battery range; 50 nA shutdown current preserves charge during multi-hour sleep intervals. |
| Industrial Handheld Scanner | Smart Energy Meter MCU Core Rail |
Use Scenario: Providing clean 3.3 V to laser driver and image sensor in battery-operated barcode scanner subject to mechanical shock and temperature swing. IC Role / Device Role / Timing Role: Robust main power regulator with thermal warning and short-circuit protection. Use Value: Dual thermal thresholds allow firmware to throttle scan frequency before shutdown; 150 mA current limit prevents damage during motor stall events. | Use Scenario: Supplying isolated 3.3 V core voltage to metrology MCU and real-time clock in utility meter operating continuously for 10+ years. IC Role / Device Role / Timing Role: Long-life, high-reliability LDO with guaranteed ±2% output accuracy over industrial temperature range. Use Value: 0.02%/mA load regulation ensures consistent timing and ADC reference stability despite varying peripheral activation states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/TT | 300 mA rated, 1.6 µA quiescent current, no thermal warning output, requires 1 µF min output cap | Lacks PWROK thermal alert; better suited for higher-current, lower-quiescent applications without thermal monitoring needs | Select when >150 mA load or ultra-low IQ dominates over thermal visibility |
| TLC7733IP | 3.3 V fixed, 250 mA, includes reset delay timer, 10 µA IQ, requires 2.2 µF output cap, no thermal warning | Provides power-on reset functionality but no thermal monitoring; higher noise (40 µVRMS) | Choose when integrated POR timing is critical and thermal margin is managed externally |
Compared with SA57000-33D,115, MCP1700T-3302E/TT offers higher current and lower IQ but forfeits thermal visibility and capacitorless operation; TLC7733IP adds reset timing but increases noise and capacitor requirements-neither replicates the combined CapFREE™, low-noise, and dual-threshold thermal signaling of SA57000-33D,115.
Availability
SA57000-33D,115 is available at Aetrix Electronics and suitable for cellular handset RF front-end, portable medical sensor node, and industrial handheld scanner applications requiring stable component supply, long-term lifecycle support, and guaranteed performance across –40 °C to +85 °C.
Supply support for SA57000-33D,115 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company formed from the spin-off of Philips Semiconductors in 2006, specializing in secure connectivity solutions for automotive, industrial, and mobile markets.
The SA57000 series was developed by Philips as its first CapFREE™ LDO family targeting space-constrained, battery-powered communication devices-emphasizing capacitor elimination, low noise, and integrated thermal intelligence for cellular phone power management.
FAQ
What is the minimum input voltage required for SA57000-33D,115 to maintain regulation?
The SA57000-33D,115 requires VIN ≥ VOUT(nom) + dropout voltage. With a typical dropout of 55 mV at 50 mA, the minimum functional input is 3.355 V. At 150 mA, dropout rises to 165 mV, so VIN must be ≥ 3.465 V. The absolute minimum VIN is VOUT(nom) + 0.1 V per datasheet, i.e., 3.4 V, but actual dropout depends on load and temperature. SA57000-33D,115 guarantees regulation down to this margin across its full operating range.
Does SA57000-33D,115 require an output capacitor for stability?
No, SA57000-33D,115 does not require any output capacitor due to its patented CapFREE™ architecture. It remains stable with zero external capacitance and supports all capacitive loads (0–100 µF) regardless of ESR. This eliminates capacitor-related layout constraints and BOM cost. SA57000-33D,115 achieves this via internal compensation optimized for direct load connection-verified across temperature and process corners in the original Philips characterization.
How does the PWROK pin function in SA57000-33D,115?
The PWROK pin on SA57000-33D,115 is an open-drain output that goes LOW under two conditions: (1) output voltage drops >6% below nominal (e.g., <3.10 V for SA57000-33D,115), or (2) die temperature reaches 127 °C ±2 °C (thermal warning). It remains LOW until both conditions clear with 2% hysteresis on voltage and 12 °C on temperature. SA57000-33D,115 uses this single pin to consolidate power integrity and thermal health reporting.
What is the shutdown current of SA57000-33D,115 when PWRON is pulled low?
When the PWRON pin of SA57000-33D,115 is driven below 0.3×VIN (logic LOW), the device enters shutdown mode with a typical supply current of 50 nA at +25 °C and ≤200 nA at +85 °C. This ultra-low shutdown current preserves battery life in standby states. SA57000-33D,115 achieves this via complete internal bias current cutoff-not just pass transistor disable-making it suitable for multi-year battery applications like wearables and remote sensors.
Is SA57000-33D,115 RoHS compliant and lead-free?
SA57000-33D,115 was originally released in 2001 prior to RoHS legislation. While the SOT23-5 package (SOT680-1) used for SA57000-33D,115 is compatible with lead-free reflow profiles, the original manufacturing lot documentation does not carry formal RoHS certification. For new designs requiring compliance, Aetrix Electronics recommends verifying current manufacturing status with NXP or selecting a qualified RoHS-compliant alternative. SA57000-33D,115 remains available as a legacy component with full electrical and thermal specifications unchanged.
SA57000-33D,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- CapFREE™
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.12V @ 50mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SO
SA57000-33D,115 FAQ
1.How can I place an order for SA57000-33D,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA57000-33D,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SA57000-33D,115 reliable?
The price and inventory of SA57000-33D,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA57000-33D,115 is usually 5 days.
3.What payment methods are accepted for SA57000-33D,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA57000-33D,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA57000-33D,115?
SA57000-33D,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA57000-33D,115 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SA57000-33D,115?
For technical support, including SA57000-33D,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA57000-33D,115 requirements.
6.How does Aetrix verify that SA57000-33D,115 is sourced from the original manufacturer or authorized distributors?
All SA57000-33D,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA57000-33D,115 meets industry standards.
7.What is the process for return or replacement of SA57000-33D,115?
All SA57000-33D,115 units undergo pre-shipment inspection (PSI). If there is an issue with SA57000-33D,115, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SA57000-33D,115 part is unused and in its original packaging.
Return procedure for SA57000-33D,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA57000-33D,115 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
