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SGM62125

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3.5A Buck-Boost Converter with I2C Interface

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The SGM62125 is a 4-switch Buck-Boost converter with programmable I2C interface for simple configuration of integrated rich features. Synchronous rectification improves system efficiency which is friendly for battery operated applications. In addition, the programmable light load PFM (pulse frequency modulation) mode and low quiescent current offer above 90% efficiency in the 10mA to 2.5A output current range. 

The SGM62125 is capable to regulate the output voltage when the input voltage is below, above or equal to the output voltage. The mode transition is also optimized to ensure smooth operation and reduce output voltage ripple. The device implements peak current mode control architecture to achieve excellent load/line transient performance across the operating voltage range. 

Dynamic voltage scaling is available via I2C controlled output voltage registers. The ADDR pin allows the programmability for I2C slave address and default start-up voltage. 

The SGM62125 implements robust protection features such as over-temperature, input over-voltage, over-current, and short-circuit hiccup protections to protect device against unexpected system failure. 

The SGM62125 is available in a Green WLCSP-1.46×2.3-15B package. High integration provides a compact solution with only four external components, allowing implementation in a PCB area as small as 39mm2.

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FEATURES
  • 2.2V to 5.5V Input Voltage Range
    • 1.9V after Startup
  • 1.8V to 5.5V Output Voltage Range
  • Minimal Load Current Capability
    • 3.5A for VIN ≥ 2.7V, VOUT = 3.5V
    • 2.5A for VIN ≥ 2.5V, VOUT = 3.85V
    • 3.2A for VIN ≥ 3V, VOUT = 3.85V
  • High Efficiency Performance
    • VIN = 3.3V to 3.5V, VOUT = 3.4V, IOUT = 0.4A to 0.8A, η > 95%
    • VIN = 3.8V, VOUT = 3.4V, IOUT = 0.4A to 0.8A, η > 95%
    • VIN = 3.8V, VOUT = 3.8V, IOUT = 0.01A, η > 90%
  • Load Transient Performance
    • VIN = 3.8V, VOUT = 3.45V, IOUT = 0A to 1A, tR = tF = 10µs, Undershoot 100mV
  • 2.25μA (TYP) Quiescent Current
  • I2C Programmable FPWM and Ultrasonic Mode
  • I2C Programmable Switching Frequency of
  • 2.2MHz and 3.5MHz
  • Slave Address and Default VOUT
    • ADDR = High, 0x76h, 3.4V
    • ADDR = Low, 0x75h
      • 3.0V for SGM62125A
      • 2.5V for SGM62125B
      • 2.4V for SGM62125C
      • 2.6V for SGM62125D
    • ADDR = Floating, 0x77h, 3.6V
  • DVS Step Size and Range: 50mV from 1.8V to 5.5V
  • I²C Interface (Up to 1MHz Clock Speed)
    • Compatible with 3.3V, 1.8V and 1.2V I/O Logic
  • Internal Soft-Start and Active Output Discharge
  • OTP, Input OVP, OCP, Output OVP and Hiccup SCP
  • Available in a Green WLCSP-1.46×2.3-15B Package
APPLICATIONS

Smartphones, TWS and Tablets

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM62125AXG/TR
Active
WLCSP-1.46×2.3-15B
15
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $1.75/unit
25-99 units : $1.5/unit
100-249 units : $1.25/unit
250-499 units : $1/unit
500-999 units : $0.875/unit
1000-9999 units : $0.65/unit
SGM62125BXG/TR
Active
WLCSP-1.46×2.3-15B
15
YES
YESYESYES
-40℃ to +125℃
View
View
SGM62125CXG/TR
Active
WLCSP-1.46×2.3-15B
15
YES
YESYESYES
-40℃ to +125℃
View
View
SGM62125DXG/TR
Active
WLCSP-1.46×2.3-15B
15
YES
YESYESYES
-40℃ to +125℃
View
View

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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