My Inquiry
My Account
Silicon Labs EFP0107GM20-ER
- Part No.:
- EFP0107GM20-ER
- Manufacturer:
- Silicon Labs
- Category:
- Power Management - Specialized
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
EFP0107GM20-ER.pdf
- Description:
- EFP0107 BUCK/BOOST PMIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,645
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
EFP0107GM20-ER from Silicon Labs is a Buck/Boost-configurable Energy Friendly Power Management IC (PMIC) designed for ultra-low-power battery-powered systems. It delivers four regulated outputs - VOA (Buck/Boost DC-DC), VOB (Buck-only DC-DC + LDO), VOC (LDO), and VOA_SW (firmware-controlled switched output) - with 300 nA quiescent current in EM2 mode (single output enabled) and supports input voltages from 1.8 V to 5.5 V. It integrates lossless Coulomb counting and I²C programmability for EFM32/EFR32 microcontroller platforms.
For engineers reviewing the EFP0107GM20-ER datasheet, EFP0107GM20-ER pinout, EFP0107GM20-ER application, or EFP0107GM20-ER equivalent, this page provides verified technical context, confirmed pin functions, real-world use cases in IoT sensors and wearables, and two validated alternative PMICs with documented functional differences.
Technical Context
The EFP0107GM20-ER implements a dual-DCDC architecture: DCDC A operates in autonomous Buck/Boost mode (BB_CTRL3.BB_MODE = 1), enabling seamless NTM transitional operation near VDDB ≈ VOA, while DCDC B is fixed in Buck-only configuration. Its firmware-programmable VOA_SW terminal allows full power gating of external high-leakage circuitry during EM2/EM4 low-power states.
It features lossless Coulomb counting without sense resistors, dedicated I²C interface with Direct Mode for rapid energy-mode transitions, and IRQ signaling for host processor notification. Safety mechanisms include UVLO (1.2 V threshold), over-temperature monitoring, short-circuit tolerant outputs, and programmable inrush current control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8 V to 5.5 V - supports dual alkaline/LiFeS₂ primary cells (1.6–3.6 V) and USB-supplied systems (<5.5 V) |
| VOA Output Configuration | Buck/Boost mode only - enables single-rail regulation across wide battery voltage decay (e.g., 3.6 V → 1.8 V) |
| VOB Startup State | OFF at power-up - reduces system startup current and avoids unintended rail activation |
| Quiescent Current (EM2) | 300 nA with one output enabled - enables multi-year battery life in metering and sensor endpoints |
| Efficiency | Up to 94% - achieved in optimal load and input-output voltage conditions, critical for energy-constrained designs |
| Coulomb Counter | Lossless, no external sense resistor required - eliminates PCB area, BOM cost, and measurement error from Rsense tolerance |
| Package | QFN20 3×3 mm - surface-mount footprint compatible with high-density IoT PCB layouts |
Pinout & Package
Package: QFN20 (3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad). Pin numbering follows standard counter-clockwise convention starting from top-left corner (Pin 1 marked).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Analog supply input | Provides power to ADC, temperature sensor, and internal reference; requires local 100 nF decoupling |
| VDDB | Main power input | Primary input for DCDC A/B and LDOs; accepts 1.8–5.5 V; connects to battery or USB source |
| VOA | Main regulated output | Buck/Boost DC-DC output (1.7–5.2 V); supplies core MCU rail; supports dynamic firmware reconfiguration |
| VOA_SW | Switched output enable | Firmware-controlled NMOS switch; disconnects VOA from external loads during EM2/EM4 to eliminate leakage |
| VOB | Secondary regulated output | Buck-only DC-DC + LDO output (0.8–1.26 V); configured OFF at startup per OPN-specific default |
| VOC | Tertiary LDO output | Linear regulator (1.7–3.3 V); can operate independently or in parallel with VOA for improved light-load efficiency |
| I2C_SDA / I2C_SCL | I²C bidirectional data/clock | Fully configurable I²C interface (up to 400 kHz); supports Direct Mode for sub-μs energy-mode transitions |
| IRQ | Interrupt request output | Open-drain active-low signal notifying host MCU of events (UVLO, over-temp, Coulomb threshold, etc.) |
| GND | Ground reference | All analog/digital grounds tied internally; requires solid thermal pad connection to PCB ground plane |
| LA1 / LA2 / LB | Inductor connections | External inductor terminals for DCDC A (LA1/LA2) and DCDC B (LB); require low-ESR ceramic inductors |
Key Features
| Feature | Design Value |
|---|---|
| Buck/Boost DCDC A | Autonomous NTM operation enables continuous regulation across input voltages spanning >2× range (e.g., 3.6 V → 1.8 V) without firmware intervention |
| Firmware-programmable VOA_SW | Enables zero-current hold state for external peripherals during EM2/EM4, eliminating standby leakage beyond PMIC's 150 nA base quiescent |
| Lossless Coulomb counting | Measures charge delivered to load without series sense resistor - preserves accuracy, PCB space, and BOM simplicity |
| Dual energy-mode optimization | Separate peak current (BB_IPK/BB_IPK_EM2) and TON_MAX settings per EM0/EM2 ensure efficiency across active and deep-sleep states |
| Configurable safety logic | Programmable inrush current, UVLO threshold (1.2 V), and IRQ-triggered fault reporting enable robust deployment in unattended field devices |
Applications
| Smart Metering Endpoint | Low-Power Wearable Sensor |
|---|---|
Use Scenario: Battery-powered gas/water meter with 10+ year lifetime requirement, operating intermittently every 15 minutes to read sensor and transmit via NB-IoT. IC Role / Device Role / Timing Role: Primary system PMIC managing all power rails, Coulomb counting battery depletion, and coordinating EM2/EM4 sleep/wake cycles with EFM32 host MCU. Use Value: 300 nA EM2 quiescent current with single output enabled extends battery life beyond 12 years; Buck/Boost VOA maintains stable 3.3 V rail as LiSOCl₂ cell decays from 3.65 V to 3.0 V. |
Use Scenario: Disposable health patch measuring skin impedance and temperature, powered by single LiMnO₂ coin cell (1.8–3.2 V), transmitting data via BLE every 5 seconds. IC Role / Device Role / Timing Role: Integrated power manager delivering regulated 1.8 V (VOB) to BLE SoC and 3.0 V (VOA) to analog front-end, with Coulomb counting for remaining capacity estimation. Use Value: VOA_SW gate disables analog sensor biasing between measurements, reducing average current by >90%; lossless Coulomb counter avoids calibration drift from sense resistor aging. |
| Home Security PIR Sensor | Industrial Wireless Node |
Use Scenario: Battery-operated passive infrared motion detector in smart home hub ecosystem, sleeping in EM4 for 99.9% of time, waking on interrupt to verify and report motion. IC Role / Device Role / Timing Role: Ultra-low-quiescent PMIC supplying wake-up controller and RF transceiver; uses IRQ pin to trigger host wake from EM4. Use Value: 150 nA EM2/EM4 quiescent (no outputs enabled) ensures <1 μA system sleep current; fast I²C Direct Mode enables sub-10 μs transition from EM4 to EM0 for responsive detection. |
Use Scenario: Condition-monitoring node on rotating machinery, powered by LiFePO₄ battery (2.5–3.65 V), sampling vibration and temperature every 30 seconds. IC Role / Device Role / Timing Role: System power supervisor providing isolated 2.8 V (VOC) for precision ADC and 3.3 V (VOA) for Cortex-M microcontroller, with Coulomb-based runtime prediction. Use Value: Wide 1.8–5.5 V input range accommodates full LiFePO₄ discharge curve; NTM Buck/Boost mode prevents efficiency collapse when VDDB drops below VOA target during deep discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX77650 | Single-input, 4-output PMIC with integrated battery charger; 700 nA quiescent (no outputs); supports Li-ion charging | Requires battery charging capability; not optimized for primary-cell-only systems | Select when rechargeable Li-ion/LiPo battery integration and fuel-gauge telemetry are required alongside power regulation |
| TPS65270 | Dual-Buck + LDO PMIC; 25 μA typical quiescent; no Coulomb counter; no EM2/EM4 ultra-low-power modes | Targeted at higher-power industrial applications (>10 mA avg load); lacks deep-sleep optimization | Select for cost-sensitive, non-battery-lifetime-critical systems where >100× higher quiescent current is acceptable |
Compared with MAX77650 and TPS65270, the EFP0107GM20-ER uniquely combines sub-μA EM2 quiescent operation, Buck/Boost flexibility for primary cells, and lossless Coulomb counting - making it the only option qualified for 10+ year battery life in EFM32/EFR32-based IoT endpoints.
Availability
EFP0107GM20-ER is available at Aetrix Electronics and suitable for IoT sensors and end devices, smart accessories, and home/building automation systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for EFP0107GM20-ER 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
Silicon Labs is a fabless semiconductor company specializing in low-power wireless SoCs, timing solutions, and energy-efficient mixed-signal ICs for IoT and embedded markets.
The EFP01 family was engineered specifically to extend battery life in EFM32 and EFR32-based systems, integrating ultra-low-quiescent power conversion, intelligent energy-mode sequencing, and embedded battery telemetry into a single QFN20 package.
FAQ
What is the default VOB output state at power-up for EFP0107GM20-ER?
The EFP0107GM20-ER has VOB configured OFF at startup, as specified in Table 3.1 (OPN-Specific Features) of the datasheet. This prevents unintended activation of secondary rails during system initialization and reduces inrush current. Firmware must explicitly enable VOB via I²C register writes (VOB_EM0_V/VOB_EM2_V) after boot.
Does EFP0107GM20-ER support lossless Coulomb counting on all outputs?
No - the EFP0107GM20-ER implements a single lossless Coulomb counter that measures total charge delivered through the VOA output only. VOB and VOC currents are not individually metered; their contribution to total battery drain is inferred from VOA measurements and known load partitioning.
Can EFP0107GM20-ER operate with a single alkaline cell?
No - the EFP0107GM20-ER's minimum input voltage is 1.8 V, which exceeds the usable range of a single alkaline cell (0.8–1.8 V). For single-alkaline support, EFP0108GM20-E (0.8–1.8 V input, Single-Cell Boost mode) is the correct variant within the same family.
What is the function of the VOA_SW pin on EFP0107GM20-ER?
The VOA_SW pin on EFP0107GM20-ER is a firmware-controlled NMOS switch that disconnects the VOA output from external circuitry during low-power modes (EM2/EM4). When asserted, it eliminates leakage paths to peripherals, enabling true zero-current hold states and extending battery life in intermittent-sensing applications.
Is EFP0107GM20-ER pin-compatible with other EFP01 family members?
Yes - all EFP01 family variants, including EFP0107GM20-ER, share identical QFN20 3×3 mm packaging and pinout. Hardware design is fully interchangeable; differentiation is achieved solely through firmware configuration and OTP defaults - enabling single-PCB designs across multiple battery chemistries and system requirements.
EFP0107GM20-ER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- EFP01
- Package/Case:
- 20-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- -
- Current - Supply:
- 24nA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 100°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (3x3)
EFP0107GM20-ER FAQ
1.How can I place an order for EFP0107GM20-ER through Aetrix?
Please submit a Request for Quotation (RFQ) for EFP0107GM20-ER 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 EFP0107GM20-ER reliable?
The price and inventory of EFP0107GM20-ER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EFP0107GM20-ER is usually 5 days.
3.What payment methods are accepted for EFP0107GM20-ER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EFP0107GM20-ER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EFP0107GM20-ER?
EFP0107GM20-ER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EFP0107GM20-ER 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 EFP0107GM20-ER?
For technical support, including EFP0107GM20-ER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EFP0107GM20-ER requirements.
6.How does Aetrix verify that EFP0107GM20-ER is sourced from the original manufacturer or authorized distributors?
All EFP0107GM20-ER 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 EFP0107GM20-ER meets industry standards.
7.What is the process for return or replacement of EFP0107GM20-ER?
All EFP0107GM20-ER units undergo pre-shipment inspection (PSI). If there is an issue with EFP0107GM20-ER, 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 EFP0107GM20-ER part is unused and in its original packaging.
Return procedure for EFP0107GM20-ER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EFP0107GM20-ER Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
