My Inquiry
My Account
Renesas ZSPM4012BA1W15
- Part No.:
- ZSPM4012BA1W15
- Manufacturer:
- Renesas
- Package:
- -
- Datasheet:
-
ZSPM4012BA1W15.pdf
- Description:
- IC REG PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,021
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZSPM4012BA1W15 from Integrated Device Technology (IDT) is a fixed-output 1.5V, 2A synchronous buck converter with integrated high- and low-side MOSFETs, internal compensation, and full fault protection. It operates from 4.5V–24V input, delivers ±2% output tolerance at 1MHz switching frequency, and supports compact power supplies in space-constrained wireless access points and set-top boxes.
For engineers reviewing the ZSPM4012BA1W15 datasheet, ZSPM4012BA1W15 pinout, ZSPM4012BA1W15 application, or ZSPM4012BA1W15 equivalent, key selection criteria include its fixed 1.5V output, 16-pin 3×3mm QFN package, 2A continuous current capability, integrated thermal/overvoltage/current protection, and PG open-drain status reporting for system sequencing.
Technical Context
The ZSPM4012BA1W15 implements current-mode PWM control with automatic PFM mode transition at light load to maintain high efficiency. Its internal oscillator runs at 1MHz ±10%, enabling small external LC filter components while maintaining stable regulation across line and load transients.
Protection architecture includes cycle-by-cycle over-current detection (2.4–3.4A threshold), thermal shutdown at 150°C–170°C with 10°C hysteresis, VCC under-voltage lockout at 4.3V typical with 325mV hysteresis, and output over-voltage protection at 103% of nominal output. The PG pin provides open-drain power-good signaling with 10ms release timer.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% - eliminates external feedback resistors and simplifies layout for DDR memory core rails. |
| Input Voltage Range | 4.5V to 24V - supports wide-input industrial and telecom power buses without pre-regulation. |
| Switching Frequency | 1MHz ±10% - enables use of compact 4.7µH inductors and 44µF ceramic output capacitors. |
| Continuous Output Current | 2A - sufficient for powering FPGA I/O banks, microcontroller cores, or ASIC logic rails. |
| Efficiency | Up to 95% - reduces thermal load and extends battery life in portable applications. |
| Quiescent Current (Disabled) | <10µA - minimizes standby power loss in always-on systems like gateways and IoT hubs. |
| Junction Temperature Range | −40°C to +125°C - qualified for industrial and extended-temperature embedded environments. |
Pinout & Package
Packaged in a thermally enhanced 16-pin QFN (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (PGND-connected) for efficient heat dissipation in high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSW (Pins 1, 12, 13, 16) | Switching Node | Connects directly to inductor; carries high di/dt current; requires tight loop area to minimize EMI. |
| VCC (Pins 2, 3, 11) | Unregulated Input Supply | Distributes input voltage to internal circuitry and gate drivers; must be bypassed with ≥10µF ceramic capacitor. |
| GND (Pin 4) | Analog Ground Reference | Reference for error amplifier and control logic; separate from power ground to reduce noise coupling. |
| FB (Pin 5) | Feedback Input | Internally tied to 1.5V reference in fixed-output version; no external resistor divider required. |
| PG (Pin 8) | Power-Good Output | Open-drain signal asserted low until VOUT reaches 90% of 1.5V and remains stable for 10ms. |
| EN (Pin 9) | Enable Control | Active-high input with 2.2V threshold and internal pull-up; disables regulator and reduces ICC to <10µA. |
| BST (Pin 10) | Bootstrap Capacitor Terminal | Drives high-side FET gate; requires 22nF ceramic capacitor between BST and VSW for proper gate drive. |
| PGND (Pins 14, 15) | Power Ground | Low-impedance return path for high-current switch node and thermal pad; must connect to PCB thermal plane. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | High-side RDS(on) = 180mΩ and low-side RDS(on) = 120mΩ - eliminates external MOSFETs and gate drivers, reducing BOM count by 6+ components. |
| Auto PFM/PWM Mode Transition | Seamless switching between modes based on load - maintains >85% efficiency down to 10mA output current without manual configuration. |
| Soft Start Ramp | 4ms controlled voltage ramp - prevents output overshoot during startup and limits inrush current into downstream capacitance. |
| Comprehensive Fault Protection | Real-time monitoring of over-current (2.4–3.4A), over-temperature (150–170°C), VOUT over-voltage (103%), and VCC UVLO (4.3V) - ensures robust operation in unregulated environments. |
| Power-Good Reporting | PG open-drain output with 10ms delay - enables safe sequencing of downstream logic, memory, or RF subsystems in multi-rail systems. |
Applications
| Wireless Access Point Power | Set-Top Box Core Rail |
|---|---|
|
Use Scenario: Powers 1.5V I/O supply for Wi-Fi SoC and Ethernet PHY in compact residential gateway designs. IC Role / Device Role / Timing Role: Primary DC/DC step-down regulator delivering regulated 1.5V at up to 2A with fast transient response to burst traffic loads. Use Value: Enables single-stage conversion from 12V bus, eliminating need for intermediate 3.3V rail and reducing board area by 35% versus discrete solutions. |
Use Scenario: Supplies 1.5V core voltage to video processing ASIC in cable/satellite STB with strict ripple and sequencing requirements. IC Role / Device Role / Timing Role: Fixed-output synchronous buck converter providing stable, low-noise power with PG signaling for safe boot sequence coordination. Use Value: Delivers ±2% output accuracy and <10mVpp ripple at 2A, meeting ASIC vendor's VDD tolerance and jitter specifications. |
| DVD/Blu-ray Player Logic Rail | Portable GPS Receiver Core |
|
Use Scenario: Generates 1.5V logic supply for DVD controller IC and servo motor driver in consumer optical drives. IC Role / Device Role / Timing Role: High-efficiency buck regulator operating from 19V adapter input, supporting dynamic load steps during disc spin-up and laser activation. Use Value: Achieves 93% peak efficiency at 1.5A, reducing thermal stress in sealed plastic enclosures and extending fanless operation time. |
Use Scenario: Powers 1.5V core of GPS baseband processor in handheld navigation devices powered by single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: Input-capable buck converter with 4.5V minimum Vin, enabling direct connection to battery via ideal diode or load switch. Use Value: Maintains regulation down to 4.5V input while delivering 2A, allowing full GPS functionality even as battery discharges below 3.6V nominal. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 1.5V fixed output, 2A, 2MHz switching, 3×3mm QFN but no PG pin or thermal shutdown hysteresis spec. | Lacks power-good reporting and precise thermal hysteresis - unsuitable for sequenced multi-rail systems requiring fault visibility. | Select ZSPM4012BA1W15 when PG signaling, robust thermal recovery behavior, and ±2% output tolerance are mandatory. |
| TPS54202DRCT | Adjustable 0.6–6V output, 2A, 1.5MHz, 10-pin WSON; requires external FB resistors and lacks integrated BST capacitor support. | Requires 4 external components vs. ZSPM4012BA1W15's 4-component fixed-output solution; no built-in soft-start timing control. | Choose ZSPM4012BA1W15 for drop-in 1.5V replacement where layout simplicity, guaranteed soft-start, and integrated protection are prioritized. |
Compared with MP2315DJ-LF-Z and TPS54202DRCT, the ZSPM4012BA1W15 offers tighter output tolerance (±2% vs. ±3%), integrated PG reporting for system-level coordination, and documented thermal hysteresis (10°C) enabling predictable restart behavior after overload events - critical for unattended embedded deployments.
Availability
ZSPM4012BA1W15 is available at Aetrix Electronics and suitable for wireless infrastructure, consumer STB, optical storage, and portable GPS applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ZSPM4012BA1W15 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and power management ICs for communications, computing, and industrial markets.
The ZSPM4012B family was designed to deliver highly integrated, easy-to-use DC/DC buck converters for space-constrained applications where minimal external components, robust protection, and precise output regulation are essential.
FAQ
What is the output voltage tolerance specification for the ZSPM4012BA1W15?
The ZSPM4012BA1W15 has a fixed 1.5V output with ±2% tolerance over temperature, line, and load conditions per Table 1.5 of the datasheet. This applies specifically to PWM mode operation at 1A load; PFM mode adds ±1% additional variation at zero load. The tolerance is guaranteed by design and tested in production.
Does the ZSPM4012BA1W15 require external feedback resistors?
No, the ZSPM4012BA1W15 does not require external feedback resistors. As a fixed-output variant, its internal reference is trimmed to 1.5V and directly connects to the FB pin internally. External resistors are only needed for adjustable versions like ZSPM4012BA1W00.
What is the recommended bootstrap capacitor value for the ZSPM4012BA1W15?
The datasheet specifies a 22nF ceramic capacitor (CBST) between the BST and VSW pins for the ZSPM4012BA1W15. Values between 17.6nF and 26.4nF are acceptable per Table 1.3. X7R or better dielectric is recommended to maintain capacitance under DC bias and temperature.
How does the ZSPM4012BA1W15 handle thermal overload conditions?
When junction temperature exceeds 170°C (typical), the ZSPM4012BA1W15 enters thermal shutdown: VSW outputs go tri-state, but PG remains active to report fault. It automatically attempts restart once temperature falls to ~160°C, repeating the cycle if overheating persists. Hysteresis is 10°C per Table 1.4.
Can the ZSPM4012BA1W15 operate from a 5V input supply?
Yes, the ZSPM4012BA1W15 supports input voltages from 4.5V to 24V, so 5V is within its valid operating range. However, note that VCC under-voltage lockout activates below 4.3V typical, and minimum duty cycle constraints apply - ensure sufficient headroom for desired 1.5V output at light loads.
ZSPM4012BA1W15 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Output Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- -
- Voltage - Input (Max):
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Frequency - Switching:
- -
- Synchronous Rectifier:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
ZSPM4012BA1W15 FAQ
1.How can I place an order for ZSPM4012BA1W15 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSPM4012BA1W15 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 ZSPM4012BA1W15 reliable?
The price and inventory of ZSPM4012BA1W15 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSPM4012BA1W15 is usually 5 days.
3.What payment methods are accepted for ZSPM4012BA1W15?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSPM4012BA1W15 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSPM4012BA1W15?
ZSPM4012BA1W15 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSPM4012BA1W15 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 ZSPM4012BA1W15?
For technical support, including ZSPM4012BA1W15 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSPM4012BA1W15 requirements.
6.How does Aetrix verify that ZSPM4012BA1W15 is sourced from the original manufacturer or authorized distributors?
All ZSPM4012BA1W15 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 ZSPM4012BA1W15 meets industry standards.
7.What is the process for return or replacement of ZSPM4012BA1W15?
All ZSPM4012BA1W15 units undergo pre-shipment inspection (PSI). If there is an issue with ZSPM4012BA1W15, 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 ZSPM4012BA1W15 part is unused and in its original packaging.
Return procedure for ZSPM4012BA1W15:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZSPM4012BA1W15 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
