High Efficiency, Low Quiescent, 2A Buck-Boost Converter

RT6158A

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The RT6158A converter is a high-efficiency single-inductor buck-boost converter that can operate with a wide input voltage range of 2.5V to 5V, suitable for batteries with voltages higher or lower than the output voltage. It delivers up to 2 A load current with a typical 4.5 A switch peak-current limit. The feedback loop is internally compensated for both buck and boost operation, providing seamless transitions between modes and optimal transient response. The Buck-Boost operates at a typical switching frequency of 2MHz in full synchronous operation.The RT6158A operates in Pulse Frequency Modulation (PFM) mode to increase efficiency. The PFM mode can be disabled, forcing the RT6158A to operate at a fixed switching frequency operation of 2MHz. Additionally, the RT6158A can also be synchronized with external frequency at MODE pin ranging from 2.2MHz to 2.6MHz. The output voltage is adjustable from 2.1V to 5.2V using an external resistor divider.The recommended junction temperature range is -40°C to 125°C and the recommended ambient temperature range is -40°C to 85°C.

应用

Cellular Phones
Wi-Fi Modules
Tablet PCs
Portable Instruments

主要规格

	RT6158A
Status	Active
Vin (min) (V)	2.5
Vin (max) (V)	5
Vout (min) (V)	2.1
Vout (max) (V)	5.2
Iout (max) (A)	2
Current Limit (typ) (A)	4.5
Freq (typ) (kHz)	2000
Ron_HS (typ) (mOhm)	20
Ron_LS (typ) (mOhm)	20
Iq (typ) (mA)	0.008
Features	Enable Input;External Synchronization;Internal Compensation;OCP;OVP
Package Type	WL-CSP2.07x2.33-25(BSC)