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

Monolithic Power Systems Inc. MP2160GQH-Z

Name: MP2160GQH-Z
Brand: Monolithic Power Systems Inc.
SKU: MP2160GQH-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP2160GQH-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 8-VFDFN

Datasheet:: MP2160GQH-Z.pdf

Description:: IC REG BUCK ADJ 1.2A 8QFN

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Product details

Overview

MP2160GQH-Z from Monolithic Power Systems is a synchronous step-down DC-DC converter with 0.6A continuous output, 2.3V–5.5V input range, 11µA quiescent current, 2.4MHz switching frequency, and adjustable 0.6V output voltage in a 1.0mm × 1.5mm QFN-6 package-designed for ultra-low-power portable and wearable systems.

For engineers reviewing the MP2160GQH-Z datasheet, MP2160GQH-Z pinout, MP2160GQH-Z application, or MP2160GQH-Z equivalent, this device supports high-efficiency power conversion in space-constrained battery-powered devices where light-load efficiency, fast transient response, and minimal external component count are critical selection criteria.

Technical Context

The MP2160GQH-Z employs constant-on-time (COT) control with input-voltage feed-forward to maintain stable 2.4MHz operation across its 2.3V–5.5V input range while delivering up to 0.6A output. Its internal 120mΩ P-channel and 80mΩ N-channel MOSFETs enable high efficiency without external switches.

Sleep mode and advanced asynchronous modulation (AAM) reduce quiescent current to 11µA at light loads, while zero-current detection (ZCD) ensures true discontinuous conduction mode (DCM) operation. Integrated output discharge, hiccup-mode short-circuit protection, and 100% duty-cycle capability support robust system-level power sequencing and fault recovery.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.3V to 5.5V - supports single-cell Li-ion, Li-polymer, and dual-cell alkaline/NiMH inputs without pre-regulation.
Output Current	0.6A continuous - sufficient for powering low-power microcontrollers, sensors, and RF transceivers.
Quiescent Current (I_Q)	11µA - enables multi-year battery life in always-on wearable and IoT edge nodes.
Switching Frequency	2.4MHz typical - allows use of sub-2mm-height 1µH inductors and compact ceramic capacitors.
Feedback Reference Voltage	600mV ±6mV - enables precise output regulation down to 0.6V with standard resistor dividers.
Internal MOSFET R_DS(on)	P-FET: 120mΩ; N-FET: 80mΩ - eliminates external power switches and reduces BOM count and footprint.
Soft-Start Time	0.5ms - prevents inrush current and output overshoot during power-up in sensitive analog/digital systems.

Pinout & Package

MP2160GQH-Z is housed in an ultra-small QFN-6 package measuring 1.0mm × 1.5mm with exposed thermal pad. The package supports high-density PCB layouts and efficient thermal dissipation via the bottom paddle.

Pin/Terminal	Circuit Role	Design Meaning
1 FB	Feedback input	Connects to resistor divider midpoint; regulates output by comparing against 600mV internal reference.
2 GND	Power ground	Main return path for input, output, and internal circuitry; must be connected to low-impedance ground plane.
3 VIN	Input supply	Accepts 2.3V–5.5V unregulated input; requires local 10µF ceramic decoupling capacitor.
4 SW	Switch node	Drain of internal high-side P-MOSFET; connects directly to inductor; carries high di/dt switching current.
5 EN	Enable control	Active-high logic input (1.2V threshold); floating or grounded disables device and activates output discharge.
6 OUT	Output power rail	Provides regulated output; senses output voltage for internal compensation; connects to load and output capacitor.

Key Features

Feature	Design Value
Constant-On-Time (COT) Control	Delivers <100ns minimum on-time and fast transient response without external compensation components.
Output Discharge Function	Internally discharges output capacitor when EN = low, preventing residual voltage from interfering with system reset or sequencing.
Hiccup-Mode Short-Circuit Protection	Shuts down and auto-retries after fault clearance-prevents thermal runaway during sustained overloads or shorts.
100% Duty Cycle Operation	Allows V_OUT ≈ V_IN under light load, minimizing dropout and extending battery runtime in near-undervoltage conditions.
Stable with Low-ESR Ceramic Capacitors	Eliminates need for electrolytic or tantalum output caps-reduces size, improves reliability, and avoids aging-related capacitance loss.

Applications

Wireless Networking Cards

Portable Medical Sensors

Use Scenario: Powering 2.4GHz/5GHz Wi-Fi/BT SoCs in mini-PCIe or M.2 form-factor modules with tight thermal and area constraints.

IC Role / Device Role / Timing Role: Primary buck regulator supplying core voltage (1.1–1.3V) to radio ICs and baseband processors.

Use Value: 2.4MHz switching enables use of 1µH shielded inductors under 2mm height, meeting card thickness limits while maintaining >90% efficiency at 300mA load.

Use Scenario: Providing regulated 1.8V or 3.3V rail for ECG/PPG sensor front-ends and BLE transceivers in patch-style wearables.

IC Role / Device Role / Timing Role: System PMIC stage delivering ultra-low-noise, low-I_Q power to analog signal chain and digital subsystems.

Use Value: 11µA I_Q extends coin-cell (CR2032) battery life beyond 3 years in sleep-dominated monitoring cycles.

Low-Power Industrial IoT Nodes

Smart Hearing Aids

Use Scenario: Supplying 1.2V to ARM Cortex-M0+ MCUs and LoRaWAN transceivers in sealed, battery-operated environmental monitors.

IC Role / Device Role / Timing Role: Main system regulator supporting cold-start from depleted lithium-thionyl chloride cells (down to 2.3V).

Use Value: Wide 2.3V–5.5V input range and 100% duty cycle allow full utilization of cell voltage swing, maximizing usable energy per charge.

Use Scenario: Generating 1.1V core and 1.8V I/O rails from a 3.6V rechargeable Li-polymer cell in hearing aids with <10mm³ volume envelope.

IC Role / Device Role / Timing Role: Dual-rail power source enabling simultaneous DSP processing and wireless streaming with minimal heat generation.

Use Value: QFN-6 (1.0×1.5mm) footprint fits within acoustic chamber margins; thermal shutdown at 160°C prevents skin-contact temperature hazards.

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
TPS62260DRVR	2.25MHz fixed-frequency PWM; 17µA I_Q; requires external compensation; 0.6A rating.	Lacks integrated output discharge and hiccup-mode SCP; less suitable for unattended battery systems requiring automatic fault recovery.	Prefer MP2160GQH-Z when output discharge, lower I_Q, and COT-based transient performance are required.
RT7297BZSP	2.5MHz COT control; 25µA I_Q; 0.8A output; QFN-8 (2×2mm) package.	Larger footprint and higher I_Q limit use in sub-10mm² wearable designs; no 100% duty cycle mode.	Choose MP2160GQH-Z for tighter board area, longer battery life, and seamless low-V_IN operation.

Compared with TPS62260DRVR and RT7297BZSP, MP2160GQH-Z delivers superior light-load efficiency (11µA vs. ≥17µA), smallest package (1.0×1.5mm vs. ≥2×2mm), and unique 100% duty-cycle capability-making it optimal for space- and energy-constrained portable electronics where every µA and mm² matters.

Availability

MP2160GQH-Z is available at Aetrix Electronics and suitable for wireless networking cards, portable medical sensors, and low-power industrial IoT nodes requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MP2160GQH-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 in the US, China, and Taiwan, and global manufacturing partnerships.

The MP2160 series belongs to MPS's ultra-low-I_Q synchronous buck converter product line, engineered specifically for battery-powered portable and wearable electronics demanding minimal standby power, minimal solution size, and robust fault handling.

FAQ

What is the minimum input voltage supported by MP2160GQH-Z?

The MP2160GQH-Z operates down to 2.3V input, enabling direct use with partially discharged single-cell Li-ion (2.5–4.2V) or dual-cell alkaline (2.4–3.2V) sources. Below 2.3V, UVLO disables the device to prevent unstable regulation or excessive dropout.

Does MP2160GQH-Z require an external compensation network?

No. The MP2160GQH-Z uses constant-on-time (COT) control architecture with built-in loop compensation, eliminating the need for external Type-II or Type-III compensation networks. This reduces BOM count and simplifies layout while ensuring stability with standard ceramic output capacitors.

How does the output discharge function operate?

When the EN pin is pulled low or left floating, the MP2160GQH-Z activates an internal 1kΩ discharge path between OUT and GND, actively draining the output capacitor to near-zero volts within milliseconds. This prevents residual voltage from causing latch-up or unintended wake-up in downstream logic.

Can MP2160GQH-Z drive a 1.0µH inductor at full 0.6A load?

Yes. The datasheet specifies 1.0µH as the recommended inductor value for typical 1.2V output applications. With internal MOSFETs rated at 120mΩ (P-FET) and 80mΩ (N-FET), the device sustains 0.6A continuous output at ambient temperatures ≤85°C using standard 1.0µH metal-alloy shielded inductors.

Is the QFN-6 (1.0mm×1.5mm) package thermally enhanced?

Yes. The package includes an exposed thermal pad on the bottom surface, which must be soldered to a dedicated PCB copper pour for effective heat transfer. Thermal resistance θ_JA is specified at 220°C/W on a 4-layer JEDEC-standard board, enabling reliable operation up to +125°C junction temperature.

What happens during a short-circuit event on the output?

Upon detecting overcurrent (≥1.3A peak), the MP2160GQH-Z enters hiccup-mode protection: it disables switching, discharges the soft-start capacitor, waits ~20ms, then attempts soft restart. This cycle repeats until the short is removed, limiting average power dissipation and preventing thermal damage.

Does MP2160GQH-Z support adjustable switching frequency?

No. The MP2160GQH-Z uses a fixed 2.4MHz nominal switching frequency determined by its internal COT timing circuit. Frequency varies slightly with input/output voltage (1.8–3.0MHz range) due to COT's input-feedforward nature-but no external frequency-setting component or pin is provided.

MP2160GQH-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 8-VFDFN

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 6V

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

Voltage - Output (Max):: 6V

Current - Output:: 1.2A

Frequency - Switching:: 3.5MHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

MP2160GQH-Z FAQ

1.How can I place an order for MP2160GQH-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP2160GQH-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 MP2160GQH-Z reliable?

The price and inventory of MP2160GQH-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP2160GQH-Z is usually 5 days.

3.What payment methods are accepted for MP2160GQH-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP2160GQH-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP2160GQH-Z?

MP2160GQH-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP2160GQH-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 MP2160GQH-Z?

For technical support, including MP2160GQH-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP2160GQH-Z requirements.

6.How does Aetrix verify that MP2160GQH-Z is sourced from the original manufacturer or authorized distributors?

All MP2160GQH-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 MP2160GQH-Z meets industry standards.

7.What is the process for return or replacement of MP2160GQH-Z?

All MP2160GQH-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP2160GQH-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 MP2160GQH-Z part is unused and in its original packaging.

Return procedure for MP2160GQH-Z:

1.Submit a request within 90 days.

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

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