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

Monolithic Power Systems Inc. MP28210GC-Z

Name: MP28210GC-Z
Brand: Monolithic Power Systems Inc.
SKU: MP28210GC-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP28210GC-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 12-UFBGA, CSPBGA

Datasheet:: MP28210GC-Z.pdf

Description:: IC REG BUCK PROG 1A 12CSP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

MP28210GC-Z from Monolithic Power Systems is an ultra-low-quiescent-current (500nA) 1A synchronous step-down DC/DC converter with 2V–5.5V input range, 7 selectable output voltages (1.2V to 3.3V), and COT control for fast transient response. It integrates dual 0.25Ω MOSFETs, supports 100% duty cycle in dropout, and targets battery-powered wearables and IoT edge nodes requiring micropower efficiency.

For engineers reviewing the MP28210GC-Z datasheet, MP28210GC-Z pinout, MP28210GC-Z application, or MP28210GC-Z equivalent, key selection criteria include quiescent current at µA loads, 1.2mm×1.6mm CSP-12 footprint constraints, dynamic voltage scaling via CTRL pins, and hiccup-mode short-circuit protection behavior under real-world fault conditions.

Technical Context

The MP28210GC-Z implements constant-on-time (COT) control with integrated error amplifier feedback, enabling stable 1.5MHz switching in CCM and seamless transition to pulse-skip mode at light loads. Its architecture includes a high-side P-channel and low-side N-channel synchronous rectifier with cycle-by-cycle over-current detection.

Control logic uses three dedicated CTRL pins (CTRL1–CTRL3) to select one of seven output voltages or disable the regulator; all unused CTRL pins must be tied to GND. The open-drain PG pin monitors output regulation with 90% threshold and 10% hysteresis, requiring an external 100kΩ–500kΩ pull-up resistor.

Key Specifications

Parameter	Value and Actual Design Meaning
Quiescent Current (I_Q)	500nA - enables >90% efficiency at 10µA load, critical for multi-year battery life in always-on sensors
Input Voltage Range	2.0V to 5.5V - supports direct single-cell Li-ion, Li-poly, or alkaline battery operation without pre-regulation
Output Current	Up to 1A - sufficient for MCU cores, BLE radios, and low-power displays in compact portable systems
Switching Frequency	1.5MHz typical - allows use of small 2.2µH inductors and 10µF ceramic capacitors, minimizing board area
Internal MOSFET R_DS(on)	0.25Ω high-side + 0.25Ω low-side - reduces conduction loss and thermal rise in 1.2mm×1.6mm CSP package
UVLO Threshold	1.8V (rising), 150mV hysteresis - prevents erratic startup during battery sag and ensures clean power sequencing
Power Good (PG)	Open-drain, 90% V_OUT threshold - provides system-level reset signaling with configurable pull-up to VIN or CTRL

Pinout & Package

CSP-12 (1.2mm × 1.6mm) wafer-level chip-scale package with 0.4mm pitch, JEDEC MO-211 compliant, MSL Level 1 moisture sensitivity rating.

Pin/Terminal	Circuit Role	Design Meaning
VIN (A3)	Input supply rail	Primary power input; requires local 10µF ceramic decoupling to GND for EMI suppression and transient stability
SW (B3)	Switch node	Drain of internal high-side P-MOSFET; connects directly to inductor; high dv/dt node requiring tight layout
GND (C3)	Power ground	Main return path for power stage; must be connected to solid bottom-layer copper pour for thermal and noise control
PG (D3)	Power good indicator	Open-drain status flag; sinks current when V_OUT < 90% target; requires external pull-up for system monitoring
OUT (B2)	Regulated output	Feedback-sensed output node; connects to load and 10µF output capacitor; low-ESR ceramic required
CTRL1–CTRL3 (B1, C1, D1)	Voltage selection & enable	Binary-coded inputs selecting 1.2V–3.3V or disabling regulator; unused pins must be grounded to prevent leakage-induced IQ rise
NC (A1, A2)	No connection	Internally unconnected; recommended to tie to GND for mechanical stability and ESD robustness
TP (C2, D2)	Test point	Factory test access only; must be connected to GND in production design to avoid parasitic coupling

Key Features

Feature	Design Value
Ultra-low 500nA I_Q	Enables >10-year battery life in 10µA average-load applications like environmental sensors
7-pin-selectable V_OUT	Eliminates external resistive feedback network, reducing BOM count and PCB area in multi-voltage designs
Hiccup-mode short-circuit protection	Prevents thermal runaway during sustained faults by cycling on/off until fault clears, preserving device reliability
100% duty cycle operation	Maintains regulated output down to V_IN = V_OUT, extending usable battery voltage range by ~300mV
Integrated soft-start (0.5ms)	Prevents inrush current into output capacitors, avoiding brown-out on shared supply rails

Applications

Wearable Health Monitor

Smart Sensor Node

Use Scenario: Continuous ECG/PPG sensing powered by coin-cell battery with 5-year shelf life requirement.

IC Role / Device Role / Timing Role: Primary power regulator delivering 1.8V to analog front-end and 3.3V to BLE SoC via dynamic CTRL pin reconfiguration.

Use Value: 500nA I_Q extends battery runtime beyond 60 months at 15µA average load; CSP-12 footprint fits within 8mm² wearable PCB area budget.

Use Scenario: Battery-operated industrial temperature/humidity sensor transmitting data every 5 minutes via LoRaWAN.

IC Role / Device Role / Timing Role: Always-on buck converter supplying 3.3V to microcontroller and radio during sleep, stepping to 1.2V during active ADC sampling.

Use Value: COT control delivers <5µs load transient recovery, ensuring stable V_CC during rapid sensor wake-up; 1.5MHz switching avoids RF interference with sub-GHz transceiver.

Portable Medical Diagnostic Tool

AR/VR Microdisplay Power

Use Scenario: Handheld glucose meter using AAA batteries with cold-temperature operation down to –20°C.

IC Role / Device Role / Timing Role: Input-stage regulator accepting 2.0V–5.5V from aging alkaline cells while maintaining ±1% V_OUT accuracy across temperature.

Use Value: UVLO hysteresis (150mV) prevents oscillation during battery voltage sag; thermal shutdown (150°C) protects against overheating during extended self-test cycles.

Use Scenario: Near-eye micro-OLED display requiring ultra-low-noise 1.2V bias with minimal ripple in compact headset form factor.

IC Role / Device Role / Timing Role: Low-noise synchronous buck generating clean 1.2V rail with <10mVpp ripple at 1A peak current during pixel refresh.

Use Value: Integrated 0.25Ω MOSFETs and 1.5MHz COT control reduce output ripple by 40% vs. comparable 500kHz converters, eliminating need for secondary LDO filtering.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TI TPS62840YKAR	400nA I_Q, 1.8V–5.5V input, fixed 1.8V output; no programmable V_OUT pins	Lacks dynamic voltage scaling; requires external resistor divider for non-standard outputs	Preferred when fixed 1.8V output suffices and lowest possible I_Q is primary constraint
Analog Devices ADP5302ACBZ-1-R7	250nA I_Q, 1.8V–5.5V input, 7-output selection via I²C; larger 2mm×2mm WLCSP	Requires I²C interface and firmware support; adds system complexity but enables runtime reconfiguration	Chosen when digital control and multiple simultaneous output rails are needed

Compared with TPS62840YKAR and ADP5302ACBZ-1-R7, the MP28210GC-Z uniquely balances pin-selectable flexibility, 500nA I_Q, and minimal 1.2mm×1.6mm footprint-making it optimal for space-constrained, firmware-light designs where hardware-based voltage selection is preferred over serial configuration.

Availability

MP28210GC-Z is available at Aetrix Electronics and suitable for wearable health monitors, IoT sensor nodes, and portable medical diagnostic tools requiring stable component supply with guaranteed long-term manufacturability.

Supply support for MP28210GC-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 power management ICs, with design centers in the US, China, and Taiwan.

The MP28210 belongs to MPS's ultra-low-I_Q buck converter product line, engineered specifically for battery-powered edge devices demanding multi-year operation without maintenance or recharge.

FAQ

What is the minimum input voltage required for MP28210GC-Z to start switching?

The MP28210GC-Z begins switching when VIN exceeds its under-voltage lockout rising threshold of 1.65V to 1.95V (typical 1.8V). Below this, the device remains disabled with 70nA shutdown current. Startup is guaranteed at 2.0V per datasheet operating conditions, and the 100% duty cycle mode sustains regulation down to VIN = VOUT.

How does the CTRL pin logic affect output voltage selection and enable function?

CTRL1–CTRL3 operate as binary-encoded inputs: low=0, high=1. A combination of 000 disables the regulator; 001–111 selects 1.2V to 3.3V respectively. All unused CTRL pins must be tied to GND-not left floating-to prevent leakage-induced IQ increase or unintended enablement.

Can MP28210GC-Z drive a 1A load continuously in the 1.2mm×1.6mm CSP package?

Yes, the MP28210GC-Z sustains 1A continuous output in ambient temperatures up to +85°C with proper PCB thermal design: 2-layer board with ≥10cm² GND copper pour, 6+ vias under the package, and minimal trace resistance. Thermal shutdown activates at 150°C junction temperature with 30°C hysteresis.

What is the purpose of the TP pins, and how should they be handled in production?

The TP pins (C2, D2) are factory test points with no functional role in operation. They must be connected to GND in production PCB layouts to prevent parasitic coupling, EMI susceptibility, or unintended current paths that could degrade light-load efficiency or PG accuracy.

Does MP28210GC-Z require an external compensation network for loop stability?

No. The MP28210GC-Z uses an internally compensated constant-on-time (COT) control architecture with integrated error amplifier. Stability is ensured with standard 10µF input and output ceramic capacitors; no external RC compensation components are needed or supported.

How does the power good (PG) pin behave during startup and fault conditions?

PG asserts high-impedance (open-drain) when VOUT reaches 90% of target and remains stable; it pulls low if VOUT drops below 80% (10% hysteresis), during UVLO, or when CTRL pins disable the regulator. An external 100kΩ–500kΩ pull-up to VIN or a CTRL pin is mandatory for valid logic-level signaling.

MP28210GC-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: MP

Package/Case:: 12-UFBGA, CSPBGA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Programmable

Number of Outputs:: 1

Voltage - Input (Min):: 2V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 1.2V

Voltage - Output (Max):: 1.8V

Current - Output:: 1A

Frequency - Switching:: 1.5MHz

Synchronous Rectifier:: Yes

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 12-CSP (1.2x1.6)

MP28210GC-Z FAQ

1.How can I place an order for MP28210GC-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP28210GC-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 MP28210GC-Z reliable?

The price and inventory of MP28210GC-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP28210GC-Z is usually 5 days.

3.What payment methods are accepted for MP28210GC-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP28210GC-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP28210GC-Z?

MP28210GC-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP28210GC-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 MP28210GC-Z?

For technical support, including MP28210GC-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP28210GC-Z requirements.

6.How does Aetrix verify that MP28210GC-Z is sourced from the original manufacturer or authorized distributors?

All MP28210GC-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 MP28210GC-Z meets industry standards.

7.What is the process for return or replacement of MP28210GC-Z?

All MP28210GC-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP28210GC-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 MP28210GC-Z part is unused and in its original packaging.

Return procedure for MP28210GC-Z:

1.Submit a request within 90 days.

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

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