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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM2775-Q1

現行

車用 2.7-V 至 5.5-VIN、200-mA 輸出電流、5-V 固定輸出電壓倍增器

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產品規格表

LM2775-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 125 Type Charge pump Iout (max) (A) 0.2 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Enable, Load Disconnect, Regulated Vout (min) (V) 4.8 Vout (max) (V) 5.2 Iq (typ) (µA) 75
Rating Automotive Operating temperature range (°C) -40 to 125 Type Charge pump Iout (max) (A) 0.2 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1700 Switching frequency (max) (kHz) 2300 Features Enable, Load Disconnect, Regulated Vout (min) (V) 4.8 Vout (max) (V) 5.2 Iq (typ) (µA) 75
WSON (DSG) 8 4 mm² 2 x 2
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • 2.7-V to 5.5-V input range
  • Fixed 5-V output
  • 200-mA output current
  • Inductor-less solution: only requires 3 small ceramic capacitors
  • Shutdown disconnects load from VIN
  • Current limit and thermal protection
  • 2-MHz switching frequency
  • PFM operation during light load currents (PFM pin tied high)
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
  • 2.7-V to 5.5-V input range
  • Fixed 5-V output
  • 200-mA output current
  • Inductor-less solution: only requires 3 small ceramic capacitors
  • Shutdown disconnects load from VIN
  • Current limit and thermal protection
  • 2-MHz switching frequency
  • PFM operation during light load currents (PFM pin tied high)

The LM2775-Q1 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775-Q1 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. The LM2775-Q1 provides a cost-optimized 5V, 200mA supply for powering CAN transceivers and other loads, boosting from a regulated 3.3-V system rail. It can be used as a post-boost in automotive systems that do not use a wide input voltage pre-boost or cold crank. At low output currents, the LM2775-Q1 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the device is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775-Q1 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.

The LM2775-Q1 is a regulated switched-capacitor doubler that produces a low-noise output voltage. The LM2775-Q1 can supply up to 200 mA of output current over a 3.1-V to 5.5-V input range, as well as up to 125 mA of output current when the input voltage is as low as 2.7 V. The LM2775-Q1 provides a cost-optimized 5V, 200mA supply for powering CAN transceivers and other loads, boosting from a regulated 3.3-V system rail. It can be used as a post-boost in automotive systems that do not use a wide input voltage pre-boost or cold crank. At low output currents, the LM2775-Q1 can reduce its quiescent current by operating in a pulse frequency modulation (PFM) mode. PFM mode can be enabled or disabled by driving the PFM pin to high or low. Additionally, when the device is in shutdown, the user can chose to have the output voltage pulled to GND or left in a high impedance state by setting the OUTDIS pin high or low.

The LM2775-Q1 has been placed in TI’s 8-pin WSON, a package with excellent thermal properties that keeps the part from overheating under almost all rated operating conditions.
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LM2775 現行 2.7-V 至 5.5-VIN、200-mA 輸出電流、5-V 固定輸出電壓倍增器 Non-automotive version

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* Data sheet LM2775-Q1 Switched Capacitor 5-V Boost Converter datasheet (Rev. C) PDF | HTML 2021年 5月 6日

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