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Analog Devices Inc./Maxim Integrated MAX15036ATE+T
- Part No.:
- MAX15036ATE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
MAX15036ATE+T.pdf
- Description:
- IC REG BUCK BOOST ADJ 3A 16TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,831
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Product details
Overview
The MAX15036ATE+T from Maxim Integrated is a high-frequency, nonsynchronous buck or boost DC-DC converter with an integrated 150mΩ n-channel power MOSFET, delivering up to 3A output current. It operates from 4.5V–5.5V or 5.5V–23V input, supports resistor-programmable switching frequency from 200kHz to 2.2MHz, and features a clock output (CKO) for 180° out-of-phase interleaving-ideal for compact xDSL modem and IP phone power supplies.
For engineers reviewing the MAX15036ATE+T datasheet, MAX15036ATE+T pinout, MAX15036ATE+T application, or MAX15036ATE+T equivalent, key selection criteria include its nonsynchronous topology, integrated high-side switch, RESET and CKO outputs, thermal performance in the 5mm × 5mm TQFN package, and compatibility with point-of-load regulation requiring stable 3A delivery across -40°C to +125°C.
Technical Context
The MAX15036ATE+T implements voltage-mode PWM control with peak current limiting and digital soft-start (4096 oscillator cycles, 64 steps). Its architecture supports both buck (high-side switch) and boost (low-side switch) topologies using the same internal 150mΩ n-MOSFET, with dedicated DRAIN/SOURCE pin routing per configuration.
It integrates a 5.2V VL regulator (with 4.3V UVLO and 137mV hysteresis), a 2V reference (0.600V FB setpoint), and a 115° phase-shifted CKO output synchronized to SOURCE-enabling master/slave two-phase operation without external timing components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V–5.5V or 5.5V–23V: Dual-range operation enables use in both low-voltage logic rails and wide-input industrial/automotive supplies. |
| Output Current | 3A continuous: Sustained load capability verified at VOUT = 3.3V, VIN = 12V, fSW = 2.2MHz per efficiency curves. |
| Switching Frequency | 200kHz–2.2MHz (ROSC-programmable): Enables optimization of size (higher fSW) vs. efficiency (lower fSW) and EMI filtering. |
| FB Voltage Setpoint | 0.600V ±9mV: Precision reference enabling accurate output regulation down to 0.6V in buck mode. |
| Peak Current Limit | 4.6A typical: Provides robust short-circuit protection while allowing margin above 3A rated output. |
| Thermal Shutdown | +170°C with 25°C hysteresis: Ensures reliable operation under sustained overload or poor PCB heatsinking. |
| Package | 16-pin TQFN-EP (5mm × 5mm): Thermally enhanced layout dissipates 2.7W; exposed pad must be soldered to SGND. |
Pinout & Package
Package: 16-pin thermally enhanced TQFN (5mm × 5mm) with exposed pad (EP) connected to SGND for optimal thermal dissipation (θJA = 30°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - DRAIN | Internal MOSFET drain node | Buck: connects to VIN; Boost: connects to inductor/diode junction-pin routing defines topology. |
| 3 - COMP | Error amplifier output | Drives external RC compensation network between COMP–SGND or COMP–FB–SGND for loop stability. |
| 4 - FB | Feedback input | Senses output via resistive divider; 0.600V threshold sets VOUT = 0.6V × (1 + R1/R2). |
| 5 - OSC | Oscillator frequency set | ROSC resistor to SGND programs fSW; required even during SYNC operation (must satisfy 0.8×fSYNC ≤ fSW ≤ 1.2×fSYNC). |
| 6 - BYPASS | Reference bypass | 0.22μF ceramic capacitor to SGND stabilizes internal 2V reference; critical for noise immunity. |
| 7 - V+ | Main input supply | Accepts 4.5V–5.5V (tie to VL) or 5.5V–23V; bypass with ≥0.1μF ceramic capacitor close to pin. |
| 8 - VL | Internal 5.2V regulator output | Powers internal circuitry; bypass with 4.7μF to SGND + 0.1μF to PGND; dropout occurs below 5.5V input. |
| 9 - CKO | Phase-shifted clock output | Logic-level output at fSW, 115° out-of-phase with SOURCE; drives SYNC of second MAX15036 for interleaved operation. |
| 10 - SGND | Signal ground reference | Return for FB, COMP, OSC, EN, SYNC, RESET, BYPASS; separate from PGND to minimize noise coupling. |
| 11 - PGND | Power ground node | Common return for VIN cap, VOUT cap, diode anode, VL bypass cap; must be low-inductance plane. |
| 12 - SOURCE | Internal MOSFET source | Buck: connects to switched inductor node; Boost: connects to PGND-defines switch position in topology. |
| 13 - SYNC | External synchronization input | Accepts 200kHz–2.2MHz logic clock; rising edge triggers MOSFET turn-on with fixed propagation delay. |
| 14 - RESET | Open-drain power-on reset | Active-low; asserts when VOUT < 92.5% of setpoint; releases after 200ms timeout once threshold crossed. |
| 15 - BST/VDD | Bootstrap driver supply | Buck: connects flying capacitor + diode; Boost: bypass capacitor to PGND; ensures gate drive for high-side MOSFET. |
| 16 - EN | Enable control input | TTL-compatible (VIH = 2.0V, VIL = 0.8V); high enables soft-start; low disables converter and forces RESET low. |
| EP - Exposed Pad | Thermal & electrical ground | Mandatory solder connection to SGND plane; primary path for heat dissipation (θJC = 1.7°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 150mΩ n-channel MOSFET | Eliminates external high-side switch; reduces BOM count and layout area in buck/boost designs. |
| Resistor-programmable 200kHz–2.2MHz fSW | Enables precise EMI shaping and inductor size optimization without changing IC or layout. |
| 115° phase-shifted CKO output | Allows seamless two-phase interleaving with second MAX15036ATE+T for reduced input/output ripple. |
| Digital soft-start (4096 cycles) | Prevents inrush current and output overshoot during startup; programmable via oscillator frequency. |
| Power-on-reset with 200ms timeout | Provides system-level sequencing assurance; open-drain output interfaces directly with µC reset inputs. |
| Thermal shutdown with 25°C hysteresis | Prevents latch-up during transient overloads; automatic recovery after cooling avoids manual intervention. |
Applications
| xDSL Modem Power Supplies | Automotive Radio Power Supplies |
|---|---|
Use Scenario: Compact dual-rail power for DSL line card PHY and DSP subsystems operating from 12V automotive or 24V telecom input. IC Role / Device Role / Timing Role: Nonsynchronous buck converter generating 3.3V/2.5V rails; CKO enables interleaved second stage for lower input capacitance. Use Value: 3A output sustains burst-mode line-card loads; 2.2MHz operation minimizes filter size in space-constrained modems. | Use Scenario: Point-of-load regulation for infotainment head unit processors and audio codecs in 12V vehicle electrical systems. IC Role / Device Role / Timing Role: Buck converter stepping 12V battery to 5V/3.3V; RESET output sequences microcontroller boot after stable VOUT. Use Value: Wide 5.5V–23V input range accommodates cold-crank (6V) to load-dump (27V); -40°C to +125°C rating meets AEC-Q200 ambient requirements. |
| Servers and Networks | IP Phones/WLAN Access Points |
Use Scenario: Auxiliary power for FPGA I/O banks or management controllers in 1U rack-mounted switches with limited board area. IC Role / Device Role / Timing Role: Boost converter generating 12V from 5V backplane rail; DRAIN/SOURCE reconfiguration enables topology flexibility. Use Value: Integrated MOSFET eliminates discrete FET + driver; 3A capability supports hot-swap controller bias and fan drivers. | Use Scenario: Single-chip power solution for IEEE 802.3af/at PoE-powered devices requiring isolated 5V/3.3V rails from 48V input. IC Role / Device Role / Timing Role: Buck converter downstream of PoE interface; EN pin enables remote power cycling via MCU GPIO. Use Value: 4.5V–5.5V input range supports local 5V backup supply; RESET output confirms power integrity to VoIP processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonsynchronous buck/boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX15037ATE+T | Synchronous buck only; includes DL driver for external low-side FET and PGOOD output instead of RESET/CKO. | Higher efficiency (>90% at 1.5A) but no boost capability or clock output; requires external MOSFET. | Select MAX15037ATE+T when efficiency >85% at full load is critical and topology is strictly buck-only. |
| TPS54332DR | 3A nonsynchronous buck only; 3.5V–28V input; fixed 600kHz fSW; no CKO or RESET; smaller 8-pin SOIC package. | Lacks interleaving support and power-good signaling; simpler design but less flexible for multi-rail systems. | Select TPS54332DR for cost-sensitive, single-rail applications where phase synchronization and reset sequencing are unnecessary. |
Compared with MAX15036ATE+T, MAX15037ATE+T trades boost capability and CKO-driven interleaving for higher efficiency and PGOOD monitoring, while TPS54332DR offers lower cost and footprint at the expense of programmability and system-level control features.
Availability
MAX15036ATE+T is available at Aetrix Electronics and suitable for xDSL modem power supplies, automotive radio power supplies, and IP phone/WLAN access point designs requiring stable component supply, extended temperature operation, and compact DC-DC integration.
Supply support for MAX15036ATE+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 industrial, communications, and computing applications.
The MAX15036ATE+T belongs to Maxim's high-frequency DC-DC converter product line, designed specifically for space-constrained point-of-load regulation where integrated MOSFETs, wide input range, and multi-topology flexibility reduce design complexity.
FAQ
What topology configurations does the MAX15036ATE+T support?
The MAX15036ATE+T supports both nonsynchronous buck and boost topologies using its integrated 150mΩ n-channel MOSFET. In buck mode, DRAIN connects to VIN and SOURCE to the inductor; in boost mode, DRAIN connects to the inductor/diode junction and SOURCE to PGND. The MAX15036ATE+T datasheet provides complete schematic examples for both configurations, including component selection guidelines for inductors and output capacitors.
Does the MAX15036ATE+T require an external MOSFET for boost operation?
No, the MAX15036ATE+T does not require an external MOSFET for boost operation-it uses its internal 150mΩ n-channel MOSFET as the low-side switch. An external Schottky diode is required for rectification. The MAX15036ATE+T pinout and application schematics confirm DRAIN and SOURCE connections specific to boost configuration, and the device's absolute maximum ratings specify 5A peak drain current capability for transient handling.
How is the switching frequency programmed on the MAX15036ATE+T?
The switching frequency of the MAX15036ATE+T is programmed using a single resistor (ROSC) connected from the OSC pin to SGND. The relationship is fSW ≈ 125×10⁸ / ROSC, supporting 200kHz to 2.2MHz. ROSC must remain installed even when using external SYNC, and must be selected so that 0.8×fSYNC ≤ fSW ≤ 1.2×fSYNC. Typical values include 10kΩ for ~1.25MHz and 5.62kΩ for ~2.2MHz.
What is the function of the CKO pin on the MAX15036ATE+T?
CKO is a clock output pin unique to the MAX15036ATE+T that delivers a logic-level signal at the same frequency as the internal switching frequency, with a fixed 115° phase shift relative to the SOURCE waveform. It is used to synchronize a second MAX15036ATE+T in master/slave configuration for 180° interleaved operation, reducing input/output ripple current and enabling smaller filter components in high-density power designs.
Can the MAX15036ATE+T operate from a 3.3V input supply?
No, the MAX15036ATE+T cannot operate from a 3.3V input supply. Its specified input voltage ranges are 4.5V–5.5V (with V+ tied to VL) or 5.5V–23V. Operation below 4.5V violates the absolute maximum rating for V+ (minimum -0.3V, but functional operation requires ≥4.5V to exceed UVLO threshold of 4.3V). For 3.3V input applications, a different converter such as the MAX15026B would be required.
MAX15036ATE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck, Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 23V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 28V
- Current - Output:
- 3A
- Frequency - Switching:
- 312kHz ~ 2.1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TQFN (5x5)
MAX15036ATE+T FAQ
1.How can I place an order for MAX15036ATE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15036ATE+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 MAX15036ATE+T reliable?
The price and inventory of MAX15036ATE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15036ATE+T is usually 5 days.
3.What payment methods are accepted for MAX15036ATE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15036ATE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15036ATE+T?
MAX15036ATE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15036ATE+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 MAX15036ATE+T?
For technical support, including MAX15036ATE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15036ATE+T requirements.
6.How does Aetrix verify that MAX15036ATE+T is sourced from the original manufacturer or authorized distributors?
All MAX15036ATE+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 MAX15036ATE+T meets industry standards.
7.What is the process for return or replacement of MAX15036ATE+T?
All MAX15036ATE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX15036ATE+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 MAX15036ATE+T part is unused and in its original packaging.
Return procedure for MAX15036ATE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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