• Input Voltage Range: 2.7V to 12V
• Output Voltage Range: 4.5V to 12.6V
• Up to 90% Efficiency at VIN = 3.3V, VOUT = 9V,
and IOUT = 1.5A
• Resistor-Programmable Peak Current Limit Up to
9.5A for High Pulse Current
• Fixed Switching Frequency: 1.1MHz (PWM Mode)
• 4ms Built-In Soft-Start Time
• PFM Operation Mode at Light Load
• Internal Output Over-Voltage Protection at 13.2V
• Cycle-by-Cycle Over-Current Protection
• Thermal Shutdown
• Available in a Green TQFN-2×2.5-11L Package
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• Input voltage range: 2.7 V to 12 V
• Output voltage range: 4.5 V to 12.6 V
• Up to 90% efficiency at VIN = 3.3 V, VOUT = 9 V,
and IOUT = 2 A
• Resistor-programmable peak current limit up to 10
A for high pulse current
• Adjustable switching frequency: 200 kHz to 2.2
MHz
• 4-ms built-in soft start time
• PFM operation mode at light load (TPS61089)
• Forced PWM operation mode at light load
(TPS610891)
• Internal output overvoltage protection at 13.2 V
• Cycle-by-cycle overcurrent protection
• Thermal shutdown
• 2.00-mm × 2.50-mm VQFN HotRod™ package
• Create a custom design using the TPS61089x with
the WEBENCH® Power Designer
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