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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Monolithic Power Systems Inc. MP2162BGQH-Z

Name: MP2162BGQH-Z
Brand: Monolithic Power Systems Inc.
SKU: MP2162BGQH-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2162BGQH-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-VFDFN

Datasheet:: MP2162BGQH-Z.pdf

Description:: IC REG BUCK ADJ 2A 8QFN

Quantity:: RFQ Add To RFQ list

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Inventory:5,000

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Product details

Overview

MP2162BGQH-Z from Monolithic Power Systems is a 2A synchronous step-down DC/DC converter with Constant-On-Time (COT) control, operating from 2.5V–6V input and delivering adjustable output down to 0.6V. It integrates 100mΩ high-side and 60mΩ low-side MOSFETs, achieves 1.5MHz switching frequency, and draws only 17μA quiescent current. Ideal for space-constrained portable instruments requiring fast transient response and power sequencing support.

For engineers reviewing the MP2162BGQH-Z datasheet, MP2162BGQH-Z pinout, MP2162BGQH-Z application, or MP2162BGQH-Z equivalent, key selection criteria include its ultra-small 2×1.5mm QFN-8 package, EN/PG signaling for system-level power management, COT architecture for loop stability without external compensation, and compatibility with low-ESR ceramic output capacitors in battery-powered I/O rails.

Technical Context

The MP2162BGQH-Z implements a Constant-On-Time control scheme with input voltage feed-forward, enabling near-constant 1.5MHz switching across 2.5V–6V input and 0.6V–VIN output ranges. Its on-time is calculated as T_ON ≈ 0.667 μs × V_OUT/V_IN, with a fixed 60ns minimum off-time to prevent runaway inductor current.

It features integrated cycle-by-cycle overcurrent protection (3.2A typical limit), hiccup-mode short-circuit recovery, thermal shutdown at 150°C (30°C hysteresis), and a dedicated open-drain PG pin with 550kΩ internal pull-up to VIN-enabling precise ±10% output regulation monitoring and power sequencing coordination.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.5V to 6V - supports single-cell Li-ion, dual-cell alkaline, and USB-powered systems without pre-regulation.
Output Current	2A continuous - sufficient for powering core logic of FPGAs, DSPs, and ARM-based SoCs in portable instrumentation.
Quiescent Current	17μA - enables >10-year battery life in always-on sensor nodes with periodic wake-up cycles.
Switching Frequency	1.5MHz ±25% - allows use of sub-2.2μH inductors and compact 10–47μF ceramic input capacitors.
Feedback Voltage	0.600V ±3% - sets output accuracy for 1.2V, 1.8V, 2.5V, and 3.3V rails using standard 1% resistor dividers.
Internal MOSFET R_DS(on)	100mΩ (HS) / 60mΩ (LS) - delivers >90% efficiency at 1A load with 5V input → 1.2V output.
Power Good Threshold	±10% of V_FB - provides reliable rail-valid indication for FPGA configuration or microcontroller reset assertion.

Pinout & Package

MP2162BGQH-Z is housed in an ultra-compact 2.0mm × 1.5mm, 0.5mm pitch QFN-8 package with exposed thermal pad (PGND-connected). The package enables high-density PCB layouts and efficient heat dissipation in thin-profile portable devices.

Pin/Terminal	Circuit Role	Design Meaning
1 EN	Enable control input	Active-high logic interface (1.2V threshold); internal 1MΩ pulldown enables default disable at power-up.
2 FB	Feedback sensing node	Connects to resistor divider midpoint; regulates output by comparing against 0.6V reference.
3 AGND	Analog ground reference	Separate ground for internal error amplifier and reference circuitry-must be tied to PGND at single point.
4 OUT	Output voltage sense	Direct connection to output capacitor anode; improves load regulation by compensating for trace IR drop.
5 PGND	Power ground return	High-current return path for both MOSFETs; connects to thermal pad for optimal thermal performance.
6 SW	Switch node	Drives external inductor; requires tight layout to minimize EMI and ringing due to fast 1.5MHz edge rates.
7 VIN	Main input supply	Accepts 2.5–6V unregulated input; requires local 10μF ceramic capacitor placed within 2mm of pin.
8 PG	Power Good indicator	Open-drain output with 550kΩ internal pull-up to VIN; asserts high when V_FB is within ±10% of 0.6V.

Key Features

Feature	Design Value
Constant-On-Time (COT) control	Eliminates need for external compensation components and delivers <10μs load transient response with minimal output voltage deviation.
Ultra-low 17μA quiescent current	Enables maintenance of regulated 3.3V rail during deep-sleep mode in battery-operated IoT endpoints without compromising startup time.
Integrated 100mΩ/60mΩ MOSFETs	Reduces BOM count and board area versus external-FET solutions while maintaining >88% efficiency at 200mA load (5V→1.2V).
100% duty-cycle operation	Supports dropout operation-maintains regulation even when input drops to within ~100mV of output voltage (e.g., 1.3V→1.2V).
Hiccup-mode short-circuit protection	Prevents thermal runaway during sustained overload by cycling soft-start (1.5ms ramp) until fault clears-no manual reset required.

Applications

Wireless Networking Cards

Portable Test Instruments

Use Scenario: Powering 2.5V and 3.3V I/O rails on PCIe Mini Card-based Wi-Fi 6 modules with dynamic RF transmit power scaling.

IC Role / Device Role / Timing Role: Primary buck regulator supplying FPGA I/O banks and RF transceiver analog supplies with tight voltage tolerance.

Use Value: 1.5MHz switching avoids interference with 2.4GHz/5GHz bands; PG signal synchronizes MAC-layer wake-up with stable rail availability.

Use Scenario: Generating precision 1.2V core voltage for ARM Cortex-M7 microcontrollers in handheld oscilloscopes with real-time FFT processing.

IC Role / Device Role / Timing Role: Main system PMIC providing low-noise, fast-transient core supply with EN-controlled power sequencing before ADC initialization.

Use Value: COT control ensures <50mV output deviation during 100mA–2A load steps; 17μA I_Q extends battery runtime between calibrations.

Battery-Powered Medical Sensors

Low-Voltage Industrial I/O Modules

Use Scenario: Regulating 1.8V supply for BLE 5.0 SoC and MEMS accelerometer in wearable ECG patches with coin-cell battery (3V nominal).

IC Role / Device Role / Timing Role: High-efficiency step-down converter operating across full battery discharge curve (3.3V → 2.5V) with automatic light-load DCM entry.

Use Value: 100% duty cycle maintains regulation down to 1.9V input; 60ns minimum off-time prevents instability during rapid sensor sampling bursts.

Use Scenario: Providing isolated 3.3V logic rail for RS-485 transceivers and GPIO expanders in DIN-rail mounted PLC I/O terminals powered from 5V backplane.

IC Role / Device Role / Timing Role: Secondary buck stage converting 5V backplane to noise-sensitive digital logic supply with PG-driven watchdog enable.

Use Value: PG pin asserts after 1.5ms soft-start completes-ensuring clean power-up sequence before firmware initializes communication stack.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62865RRLR	Higher 4A output, 2.5V–5.5V input, 2.4MHz f_SW, 25μA I_Q; uses voltage-mode PWM control.	Requires external compensation; better suited for higher-current FPGA core rails but less optimal for ultra-low-I_Q battery apps.	Select when >2A load or tighter output ripple (<10mV) is required; avoid if board space or standby current are critical.
RT7297BZSP	2A, 4.5V–18V input, 500kHz f_SW, 35μA I_Q; includes spread-spectrum modulation.	Wider input range suits industrial 12V systems; lower f_SW mandates larger magnetics and reduces EMI filtering complexity.	Choose for 12V input environments where EMI compliance is prioritized over size; not suitable for sub-3V battery inputs.

Compared with TPS62865RRLR and RT7297BZSP, MP2162BGQH-Z uniquely balances ultra-small footprint (2×1.5mm), sub-20μA quiescent current, and COT simplicity-making it optimal for space- and energy-constrained 2.5–6V portable designs where fast transient response outweighs absolute peak current or wide-input flexibility.

Availability

MP2162BGQH-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable test instruments, and battery-powered medical sensors requiring stable component supply with consistent lead times and full traceability.

Supply support for MP2162BGQH-Z 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers across Asia and North America and global manufacturing partnerships.

The MP2162 belongs to MPS's ultra-compact DC/DC converter product line, engineered specifically for portable and battery-operated applications demanding minimal board area, low quiescent power, and robust power sequencing capability.

FAQ

What is the recommended input capacitor for MP2162BGQH-Z in a 5V-to-1.2V application?

A 10μF X5R/X7R ceramic capacitor placed within 2mm of VIN and PGND pins is recommended. For systems with higher input ripple sensitivity or 47μF may be used. The capacitor must support ≥1A RMS ripple current-typically satisfied by 0805 or 1206 case sizes with ≤5mΩ ESR.

Does MP2162BGQH-Z require external compensation components?

No. Its Constant-On-Time control architecture eliminates the need for external compensation networks. Stability is inherently achieved across all valid input/output combinations when using recommended ceramic output capacitors (≥10μF, low ESR) and inductors (0.68–2.2μH).

How does the PG pin behave during startup and fault conditions?

PG remains low until the FB voltage stabilizes within ±10% of 0.6V (i.e., 0.54V–0.66V), then pulls high via its internal 550kΩ resistor to VIN. During undervoltage, overcurrent, or thermal shutdown, PG is actively pulled low by an internal MOSFET with <100Ω R_DS(on).

Can MP2162BGQH-Z operate with 100% duty cycle, and under what conditions?

Yes. When VIN drops to within ~100mV of the regulated output voltage (e.g., 2.6V input for 2.5V output), the high-side MOSFET remains continuously on, bypassing switching action to maintain regulation-critical for extending runtime near end-of-battery discharge.

What is the thermal performance of the QFN-8 (2×1.5mm) package in still air?

With JEDEC-standard 4-layer PCB layout (2oz copper, 1in² thermal pad), θ_JA is 110°C/W. At 2A load and 5V→1.2V conversion, junction temperature rise is ~12°C above ambient-well below the 125°C max operating limit, confirming suitability for sealed portable enclosures.

Is the MP2162BGQH-Z RoHS-compliant and lead-free?

Yes. All MPS products, including MP2162BGQH-Z, are lead-free and fully compliant with the EU RoHS directive. The device uses matte-tin plating on QFN leads and meets IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements.

MP2162BGQH-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 8-VFDFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.5V

Voltage - Input (Max):: 6V

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 6V

Current - Output:: 2A

Frequency - Switching:: 1.5MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-QFN (2x1.5)

MP2162BGQH-Z FAQ

1.How can I place an order for MP2162BGQH-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2162BGQH-Z 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 MP2162BGQH-Z reliable?

The price and inventory of MP2162BGQH-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2162BGQH-Z is usually 5 days.

3.What payment methods are accepted for MP2162BGQH-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2162BGQH-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2162BGQH-Z?

MP2162BGQH-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2162BGQH-Z 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 MP2162BGQH-Z?

For technical support, including MP2162BGQH-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2162BGQH-Z requirements.

6.How does Aetrix verify that MP2162BGQH-Z is sourced from the original manufacturer or authorized distributors?

All MP2162BGQH-Z 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 MP2162BGQH-Z meets industry standards.

7.What is the process for return or replacement of MP2162BGQH-Z?

All MP2162BGQH-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2162BGQH-Z, 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 MP2162BGQH-Z part is unused and in its original packaging.

Return procedure for MP2162BGQH-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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