Triple-Output AMOLED Display Power Supply Integrated Circuit IC Chip
The SGM3836A is designed for powering AMOLEDdisplays which require VAVDD, VELVDD and VELVSS. Thedevice integrates two boost converters, VO1 for VELVDDand VO3 for VAVDD, and an inverting buck-boostconverter VO2 for VELVSS. Output voltages of all thethree converters can be programmed in digital stepsthrough the digital interface control pin (CTRL).The SGM3836A is available in a Green TQFN-3×3-16Lpackage. It operates over an ambient temperaturerange of -40℃ to +85℃.
Key Features
● 2.9V to 4.5V Input Voltage Range
● Synchronous Boost Converter (ELVDD)
4.6V to 5.0V Output Voltage with 100mV Steps
4.6V Default Output Voltage 1% Accuracy
Output Voltage Sensing Pin for Path LossCompensation (FBS)
● Synchronous Inverting Buck-Boost Converter(ELVSS)
-5.4V to -1.4V Output Voltage with 100mV Steps
-2.5V Default Output Voltage 1.2% Accuracy at -2.5V
● ELVDD & ELVSS Combined Output CurrentCapability
Up to 800mA at 4.6V/-2.5V (VIN = 3.1V)
Up to 780mA at 4.6V/-2.7V (VIN = 3.1V)
Up to 750mA at 4.6V/-3.0V (VIN = 3.1V)
Up to 630mA at 4.6V/-4.0V (VIN = 3.1V)
Up to 510mA at 4.6V/-5.4V (VIN = 3.1V)
● Synchronous Boost Converter (AVDD)
5.8V to 7.9V Output Voltage with 300mV Steps
6.1V Default Output Voltage
1% Accuracy
100mA Output Current Capability
● VIN and VOUT Bi-Directional Isolation
● Short Circuit Protection (SCP)
● Overload Protection
● Thermal Shutdown
● VELVSS Start-Up Delay: 10ms
● Short Circuit and OLP Detect Time: 1ms
● Available in a Green TQFN-3×3-16L Package
Applications
Smartphones & Tablets
Active Matrix OLED Displays
Typical Application
Pin Configurations
Pin Description
Product Selection Guid
| Part Number | | | | | Control | | | Features |
| | | 2.7 | 5.5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-1.51×2.10-15B | SIMO, Triple-Output, for Wearable Deivices |
| | 70 | 2.7 | 4.8 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-1.2×2.4-17B | Inductor-Less, Triple-Output, for Wearable Deivices |
| | 90 | 2.7 | 5.5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2×2-16B | Triple-Output, for Wearable Deivices |
| | 400 | 2.9 | 4.5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | TQFN-3×3-16L | Triple-Output, for Smart Phones |
| | 600 | 2.9 | 4.5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | TQFN-3×3-16L | Triple-Output, for Smart Phones |
| | 600 | 2.9 | 5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2.0×2.0-25B | Triple-Output, for Smart Phones |
| | 700 | 2.5 | 4.8 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2.5×2.5-36B | Triple-Output, for Smart Phones & PADs |
| | 1200 | 2.5 | 4.8 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2.90×2.96-49B | Triple-Output, for Smart Phones & PADs |
| | 1000 | 2.9 | 4.8 | 4 | 1-Wire | AVDD/ELVDD/ELVSS/DVDD | WLCSP-2.5×2.9-42B | Four-Output, for Tandem AMOLED Display Smart Phones & PADs |
| | 1200 | 2.9 | 5 | 6 | | AVDD/ELVDD/ELVSS/DVDD/VGL/VGL_LDO | WLCSP-3.3×3.3-64B | Six-Output, for Smart Phones & PADs |
| | 1200 | 2.9 | 5 | 6 | 1-Wire | AVDD/ELVDD/ELVSS/DVDD/VGL/VGL_LDO | WLCSP-3.3×3.3-64B | Six-Output, for Smart Phones & PADs |
| | 1000 | 2.5 | 4.8 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2.37×2.37-36B | Triple-Output, for Smart Phones & PADs |
| | 800 | 2.5 | 5 | 3 | 1-Wire | AVDD/ELVDD/ELVSS | WLCSP-2×2-25B-A | Triple-Output, for Smart Phones & PADs |
Integrated circuits (ICs) serve as the foundation of modern electronics, offering small size, low power consumption, strong performance and high reliability. They are widely used in consumer electronics, industrial applications, communications, automotive electronics, medical equipment, and aerospace/defense systems.
Uchi Electronics provides high-performance analog and mixed-signal processing solutions for industrial automation, new energy, automotive, communications, computing, consumer electronics and medical equipment applications.
This solution demonstrates the application of integrated circuits in smart phones and tablets. For assistance selecting the right product, please contact our technical support team.
