My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1519ETL-T
- Part No.:
- MAX1519ETL-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Special Purpose Regulators
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MAX1519ETL-T.pdf
- Description:
- DUAL-PHASE, QUICKPWM CONTROLLERS
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
The MAX1519ETL-T from Maxim Integrated is a dual-phase, Quick-PWM™ step-down controller designed for Pentium® 4 CPU core power supplies in mobile and desktop platforms. It delivers ±0.75% output voltage accuracy at 1.3V, supports 4V–28V battery input, and features active voltage positioning with adjustable gain/offset to reduce bulk capacitance. It operates in single- or dual-phase modes with selectable switching frequencies up to 550kHz.
For engineers reviewing the MAX1519ETL-T datasheet, MAX1519ETL-T pinout, MAX1519ETL-T application, or MAX1519ETL-T equivalent, key selection criteria include its dual-phase Quick-PWM architecture, programmable suspend voltage (0.675V–1.45V), integrated 5-bit DAC for VID code decoding, and thermal/overvoltage/undervoltage protection with VROK status output.
Technical Context
The MAX1519ETL-T implements a dual-phase interleaved Quick-PWM control scheme with independent on-time generation per phase, enabling instantaneous response to fast load transients (e.g., 10A→50A in <20µs). Its voltage-positioning amplifier accepts OFS and GNDS inputs to dynamically adjust output voltage based on load current, reducing required output capacitance by up to 50% versus fixed-output controllers.
It integrates four-level logic inputs (TON, S0–S1) and five-bit VID inputs (D0–D4) to configure operating frequency (100/200/300/550kHz), suspend voltage, and nominal core voltage (0.60V–1.75V for mobile, 1.10V–1.85V for desktop). Protection includes cycle-by-cycle current limiting with ±30mV threshold accuracy, thermal shutdown at 160°C, and blanked VROK fault reporting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Topology | Dual-phase synchronous buck controller - enables interleaved operation to halve input ripple current and reduce output voltage ripple by √2. |
| Output Voltage Range | 0.60V–1.75V (mobile), 1.10V–1.85V (desktop) - set via 5-bit VID inputs D0–D4; supports dynamic voltage scaling for P4 CPU power management. |
| DC Accuracy | ±0.75% at 1.3V over line/load/temperature - ensures stable CPU core voltage under worst-case conditions without external calibration. |
| Switching Frequency | Selectable 100/200/300/550kHz via TON pin - higher frequencies allow smaller inductors; lower frequencies improve light-load efficiency in pulse-skipping mode. |
| Input Voltage Range | 4V–28V on V+ pin - supports direct battery stepping (e.g., 3-cell Li-ion) or 5V system rail conversion for flexible notebook power architecture. |
| Protection Features | Output OVP/UVP, thermal shutdown, VROK status flag, and current-limit fault detection - shuts down on fault and blanks VROK for 24 RTIME cycles during transitions. |
| Package | 40-pin thin QFN, 6mm × 6mm - low-profile footprint optimized for high-density notebook PCB layouts with exposed thermal pad. |
Pinout & Package
MAX1519ETL-T is housed in a 40-pin, 6mm × 6mm thin QFN package with exposed thermal pad (pin 40 = PGND). The package supports high-power dissipation (1.86W at +70°C) and requires solder reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 TIME | Slew-rate clock setting | Resistor to GND sets internal slew-rate clock (100kHz–1MHz); determines soft-start/soft-shutdown ramp rate and VROK blanking timing. |
| 2 TON | On-time selection | Four-level input (GND/REF/open/VCC) selects K-factor for DH_ on-time: 550/300/200/100kHz nominal switching frequency. |
| 3 SUS | Suspend mode enable | Three-level input (GND/REF/high) selects voltage source: D0–D4 (normal), S0–S1 (suspend), overriding DAC output during state transitions. |
| 4–5 S0, S1 | Suspend voltage code | Four-level digital inputs selecting 0.675V–1.45V suspend voltage via internal multiplexer; used only when SUS ≠ GND. |
| 6 SHDN | Shutdown control | Active-low input; GND forces 1µA shutdown, ramps output down at 4× programmed slew rate; 12–15V disables protections for debug. |
| 7 OFS | Offset voltage control | Analog input adjusting output offset: 0–0.8V subtracts 0.125×VOFS; 1.2–2.0V adds 0.125×(VREF−VOFS); undefined 0.8–1.2V range. |
| 8 REF | 2.000V reference output | Stable 2V reference (±10mV) sourcing 100µA; must be bypassed with ≥0.22µF ceramic capacitor for DAC and error amp stability. |
| 9 ILIM | Current-limit threshold | Adjusts current-sense threshold: tied to VCC = 30mV default; 0.2–1.5V input yields precise 1/20×VILIM threshold (7–77mV range). |
| 10–14 D0–D4 | VID code inputs | Five-bit parallel interface setting nominal output voltage (0.60–1.75V); decoded by on-chip 5-bit DAC for closed-loop regulation. |
| 15 VROK | Power-good status | Open-drain output asserting high when FB is within ±7% to ±13% of DAC-set voltage; 0.4V max low-level voltage at 3mA sink. |
| 16–19 DHM, DLM, DHS, DLS | High-/low-side gate drivers | Four dedicated outputs driving external N-channel MOSFET gates; DHx sourced/sunk at 1.6A/4A, RON = 1.0Ω/0.4Ω typical. |
| 20–23 CMP, CMN, CSP, CSN | Current-sense differential inputs | Two isolated current-sense channels (phase 1: CMP/CMN; phase 2: CSP/CSN) with ±30mV threshold accuracy and 2µA input bias. |
| 24–27 V+, VCC, VDD, GND | Power supply rails | V+ (4–28V battery), VCC/VDD (4.5–5.5V logic), GND (signal ground); UVLO at 4.25V on VCC disables PWM. |
| 28–31 FB, OAIN+, OAIN-, CODE | Feedback and amplifier I/O | FB connects to resistor divider; OAIN+/OAIN− interface with external voltage-positioning op-amp; CODE is unused (no-connect). |
| 32–39 BSTM, BSTS, LXM, LXS, GNDS, CCV, CCI, CSN | Bootstrap, inductor, and compensation | BSTx drives high-side gate bootstrap; LXx connects to inductor switch nodes; GNDS is current-sense ground; CCV/CCI set compensation. |
| 40 PGND | Power ground | High-current return path for MOSFET sources and sense resistors; separate from signal GND to minimize noise coupling into feedback. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-phase Quick-PWM control | Enables interleaved operation with <20µs transient response to 40A load steps, eliminating need for external load-line compensation. |
| Active voltage positioning | Reduces required output capacitance by 40–50% via real-time VOUT adjustment proportional to load current, lowering BOM cost and board area. |
| Programmable suspend voltage | Supports Intel P4 S0–S1 state transitions with dedicated S0/S1 inputs and hardware-blanked VROK during voltage slewing. |
| Integrated 5-bit VID DAC | Directly decodes D0–D4 signals into analog reference, eliminating external DAC and reducing component count in CPU VRM designs. |
| Comprehensive fault protection | Includes cycle-by-cycle current limiting, thermal shutdown (160°C), output OVP/UVP, and VROK fault flag with 24-clock blanking window. |
| Flexible input voltage architecture | Accepts 4–28V V+ input, enabling both single-stage (battery-to-core) and two-stage (5V-system-to-core) conversion for optimal efficiency/size trade-off. |
Applications
| Notebook CPU Core Power Supply | Desktop P4 VRM Module |
|---|---|
|
Use Scenario: Powering Intel Pentium 4 mobile processors in ultraportable notebooks with battery input ranging from 7.2V to 14.8V. IC Role / Device Role / Timing Role: Dual-phase buck controller generating dynamically scaled core voltage (0.60V–1.75V) with suspend-mode transition support. Use Value: Enables direct battery stepping for >90% peak efficiency at 20A, reducing heat and extending runtime versus two-stage 5V intermediate bus. |
Use Scenario: High-current CPU voltage regulation in ATX desktop motherboards requiring 1.10V–1.85V at up to 60A. IC Role / Device Role / Timing Role: Primary PWM controller managing two synchronous buck phases with active voltage positioning and soft-start sequencing. Use Value: Reduces output capacitor count by 50% via voltage positioning, lowering solution size and cost while meeting Intel VRD10.1 specifications. |
| Server Processor VRM | Low-Voltage Programmable PSU |
|
Use Scenario: Core power delivery for dual-socket Xeon-based servers where thermal density and transient response are critical. IC Role / Device Role / Timing Role: Dual-phase controller implementing interleaved switching to halve input ripple current and ease EMI filtering requirements. Use Value: Achieves <1% output voltage deviation during 50A/µs load steps, ensuring processor stability during burst workloads. |
Use Scenario: Digitally programmable lab-grade power supply with user-adjustable output voltage and current limit. IC Role / Device Role / Timing Role: Configurable buck controller using D0–D4 and S0–S1 as digital input interfaces for voltage selection and mode control. Use Value: Provides ±0.75% accuracy and 100mV DAC resolution across 0.6V–1.75V range, enabling precision bench power without trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-phase buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1545ETL-T | Pin-compatible variant with integrated output overvoltage protection (OVP) - MAX1519ETL-T lacks OVP circuitry. | Required in systems mandating hardware OVP for safety-critical CPU power rails; otherwise identical functionality and pinout. | Select MAX1545ETL-T when OVP is required; MAX1519ETL-T is preferred for cost-sensitive designs where OVP is handled externally. |
| MAX1544ETL-T | Pin-compatible controller targeting Pentium M and Celeron M CPUs; narrower output range (0.70V–1.50V) and no suspend-mode inputs (S0/S1). | Designed for lower-power mobile CPUs without S0–S1 state transitions; lacks suspend voltage programming capability. | Choose MAX1544ETL-T for Pentium M/Celeron M platforms; MAX1519ETL-T is mandatory for full P4 S0–S1 compliance. |
Compared with MAX1545ETL-T and MAX1544ETL-T, the MAX1519ETL-T provides the broadest output range (0.60V–1.75V) and full Intel P4 suspend-mode support, but omits integrated OVP - making it optimal for cost-constrained P4 notebooks where external OVP suffices.
Availability
MAX1519ETL-T is available at Aetrix Electronics and suitable for notebook CPU core supplies, desktop VRM modules, and server processor power delivery requiring stable component supply across extended temperature ranges (-40°C to +100°C).
Supply support for MAX1519ETL-T 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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for computing, communications, and industrial applications.
The MAX1519ETL-T belongs to Maxim's CPU core power controller product line, engineered specifically to meet Intel's Pentium 4 VRD10.1 specifications with dual-phase Quick-PWM architecture and active voltage positioning.
FAQ
What is the maximum input voltage supported by the MAX1519ETL-T?
The MAX1519ETL-T supports an input voltage range of 4V to 28V on its V+ pin. This wide range enables direct battery stepping in notebook applications (e.g., 3-cell Li-ion at 12.6V max) and compatibility with 5V intermediate bus architectures. Absolute maximum rating is +30V, but operation above 28V is not guaranteed and may damage the device.
Does the MAX1519ETL-T include built-in output overvoltage protection?
No, the MAX1519ETL-T does not include integrated output overvoltage protection (OVP). That feature is present only in the pin-compatible MAX1545ETL-T variant. The MAX1519ETL-T relies on external OVP circuitry or system-level monitoring for overvoltage fault handling, while retaining undervoltage, thermal, and current-limit protection.
How does the MAX1519ETL-T implement active voltage positioning?
The MAX1519ETL-T implements active voltage positioning through its voltage-positioning amplifier, which accepts OFS and GNDS inputs. It adjusts output voltage downward under increasing load current - typically by 10–20mV/A - to maintain constant power delivery and reduce required output capacitance by up to 50% compared to fixed-voltage regulators.
What is the purpose of the TIME pin on the MAX1519ETL-T?
The TIME pin on the MAX1519ETL-T sets the internal slew-rate clock frequency by connecting an external resistor to GND. This clock governs soft-start/soft-shutdown ramp rates, VROK fault-blanking duration (24 clock cycles), and transient response timing. A 15kΩ resistor yields ~1MHz; 150kΩ yields ~100kHz, allowing design flexibility for different ramp requirements.
Can the MAX1519ETL-T operate in single-phase mode?
Yes, the MAX1519ETL-T supports selectable single-phase or dual-phase operation via the SKIP pin. When SKIP = GND, it enters single-phase pulse-skipping mode for improved light-load efficiency. In dual-phase mode (SKIP = VCC or REF), it interleaves two phases to reduce input/output ripple and thermal stress on external components.
MAX1519ETL-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- PWM Controller, CPU core
- Voltage - Input:
- 4V ~ 28V
- Number of Outputs:
- 1
- Voltage - Output:
- Programmable
- Operating Temperature:
- -40°C ~ 100°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-TQFN-EP (6x6)
MAX1519ETL-T FAQ
1.How can I place an order for MAX1519ETL-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1519ETL-T 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 MAX1519ETL-T reliable?
The price and inventory of MAX1519ETL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1519ETL-T is usually 5 days.
3.What payment methods are accepted for MAX1519ETL-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1519ETL-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1519ETL-T?
MAX1519ETL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1519ETL-T 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 MAX1519ETL-T?
For technical support, including MAX1519ETL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1519ETL-T requirements.
6.How does Aetrix verify that MAX1519ETL-T is sourced from the original manufacturer or authorized distributors?
All MAX1519ETL-T 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 MAX1519ETL-T meets industry standards.
7.What is the process for return or replacement of MAX1519ETL-T?
All MAX1519ETL-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1519ETL-T, 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 MAX1519ETL-T part is unused and in its original packaging.
Return procedure for MAX1519ETL-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1519ETL-T Tags
-
TPS51206DSQR
Texas Instruments
-
TPS51200DRCR
Texas Instruments
-
TPS51200DRCT
Texas Instruments
-
TPS62740DSSR
Texas Instruments
-
TPS51100DGQR
Texas Instruments
-
NCP51200MNTXG
onsemi
-
NCP51400MNTXG
onsemi
-
RT9026GSP
Richtek USA Inc.
-
LP2998MRX/NOPB
Texas Instruments
-
TPS51200QDRCRQ1
Texas Instruments
-
DPA423GN-TL
Power Integrations
-
LM10011SD/NOPB
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…
