SGM3851A

Active

Triple-Output AMOLED Display Power Supply

SGM3851A.pdf

The SGM3851A is designed for powering AMOLED displays which require VAVDD, VELVDD and VELVSS. The device integrates two boost converters, VO1 for VELVDD and VO3 for VAVDD, and an inverting buck-boost converter VO2 for VELVSS. Output voltages of all the three converters can be programmed in digital steps through the digital interface control pin (CTRL).

The SGM3851A is available in a Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40℃ to +85℃.

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
1.2% Accuracy
400mA Output Current Capability
Output Voltage Sensing Pin for Path Loss Compensation (FBS)
Synchronous Inverting Buck-Boost Converter (ELVSS)
-5.4V to -1.4V Output Voltage with 100mV Steps
-2.5V Default Output Voltage
1.6% Accuracy at -2.5V (±40mV)
400mA Output Current Capability
Synchronous Boost Converter (AVDD)
5.8V to 7.9V Output Voltage with 300mV Steps
6.1V Default Output Voltage
1.2% 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

Ordering Information

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)	Lead Time** (Volume Range: Days)
SGM3851AYTQ16G/TR	Active	TQFN-3×3-16L	16	Yes	Yes	Yes	Yes	MSL1	-40℃ to +85℃	View	View	1-24 units : $4.2/unit 25-99 units : $3.6/unit 100-249 units : $3/unit 250-499 units : $2.4/unit 500-999 units : $2.1/unit 1000-9999 units : $1.56/unit	3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days