TPS65137AS Texas instruments

TPS65137AS

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TPS65137AS

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Описание

The TPS65137AS is designed to drive AMOLED displays (Active Matrix Organic Light Emitting Diode) requiring positive and negative voltage supply rails. The device integrates a boost converter with LDO post regulator and an inverting buckboost converter suitable for battery operated products. The digital control pin (CTRL) allows programming the negative output voltage in digital steps. The TPS65137AS uses a novel technology enabling excellent line and load regulation. This is required to avoid disturbance of the AMOLED display by the input voltage disturbances occurring during transmit periods in mobile phones.

2.5 V to 4.8 V Input Voltage Range
0.8% Output Voltage Accuracy V_POS
Excellent Line Transient Regulation
250 mA Output Current
Fixed 4.6 V V_POS Output Voltage
Digitally Programmable V_NEG, –2.2V to –5.2V
–4.9V Default Value for V_NEG
Short Circuit Protection
Thermal Shutdown
3mm × 3mm 10-Pin QFN Package

Display type	AMOLED
IC integration	AMOLED bias
Vin (min) (V)	2.5
Vin (max) (V)	4.8
Applications	7 inches or less
Level shifter/scan driver (Ch)	0
V_POS (min) (V)	4.6
V_POS (max) (V)	4.6
V_NEG (min) (V)	-5.2
V_NEG (max) (V)	-2.2
Features	Digital control interface
Topology	Boost, Inverting Buck-Boost
Rating	Catalog
Operating temperature range (°C)	-40 to 85