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TPS61175PWPR
HTSSOP-14 (5x4.4mm)
The TPS61175PWPR from TI is a 38V 3A boost converter/LED driver with 2.2MHz switching, PWM dimming, and 2.9-18V input in HTSSOP-14 for LED backlight and boost supplies.
| Package | HTSSOP-14 (5×4.4mm) |
The TPS61175PWPR from TI is a 38V 3A boost converter/LED driver with 2.2MHz switching, PWM dimming, and 2.9-18V input in HTSSOP-14 for LED backlight and boost supplies.
The TPS61175PWPR is a 38V 3A boost converter from TI in HTSSOP-14 with 2.2MHz switching frequency. It uses current-mode control with an integrated 3A/40V N-channel MOSFET. The FSW pin selects between 500kHz (float) and 2.2MHz (connect to VDD), trading efficiency for inductor size. At 2.2MHz, a 3.3uH inductor suffices, reducing footprint by 50% vs 500kHz designs. The feedback voltage is 1.229V, set by an external resistor divider. The COMP pin allows external Type-II or Type-III compensation for optimal transient response with various output capacitor types. The SS pin controls soft-start time: tSS = C_SS x 1.229V / 5uA. A 0.047uF capacitor gives approximately 12ms soft-start. The internal 5V VDD regulator powers the gate driver and internal logic. The device supports output voltages up to 38V from inputs as low as 4.5V. PWM dimming for LED applications is achieved by pulling EN LOW to turn off the converter. Cycle-by-cycle current limiting at 4.2A protects the internal MOSFET.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | EN | Input | Enable (active high, internal pull-down) |
| 2 | FB | Input | Feedback (1.229V reference) |
| 3 | COMP | Analog | Error amplifier output (compensation) |
| 4 | SS | Analog | Soft-start capacitor connection |
| 5 | FSW | Analog | Frequency select (connect to VDD for 2.2MHz) |
| 6 | GND | Power | Ground |
| 7 | FREQ | Analog | Frequency programming resistor |
| 8 | VIN | Power | Input supply (4.5-18V) |
| 9 | VDD | Output | Internal 5V regulator output |
| 10 | SW | Output | Switching node (internal MOSFET drain) |
| 11 | SW | Output | Switching node (paralleled) |
| 12-14 | PGND | Power | Power ground for output stage |
| Manufacturer | Part Number | Package | Notes |
|---|---|---|---|
| Texas Instruments | TPS61175PWPRG4 | HTSSOP-14 | Same device, different suffix |
| Monolithic Power | MP3204DK-LF-Z | SOT-23-6 | 20V 0.5A boost, smaller package |
| Texas Instruments | LM3478MM/NOPB | VSSOP-8 | Boost controller, external FET |
| Analog Devices | LT3467ETS8#TRPBF | TSOT-23-8 | Boost, 1.3A, 1.2MHz |
| Silicon Labs | SI8261BBC-C-IS | LGA-6 | Isolated gate driver, 4A |
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
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