Specifications
| Type | Description |
|---|---|
| Part Number | TPS568215 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Inferred Category | Power_Management |
| Component Type | Power_IC |
| Package / Case | RNN (VQFN, 18), 3.5 mm x 3.5 mm body |
| Input Voltage Range | 4.5 to 17 V; recommended operating conditions, source page 4 |
| Output Current | 0 to 8 A; recommended operating conditions, ILOAD, source page 4 |
| Output Voltage Range | 0.6 to 5.5 V; feature list, source page 1 |
| Reference Voltage Accuracy | 0.6 V +/-1%; across full temperature range, source page 1 |
| Feedback Voltage | 598 min, 600 typ, 602 max mV; TJ = 25 deg C, VIN = 12 V, source page 5 |
| Feedback Voltage | 597.5 min, 600 typ, 602.5 max mV; TJ = 0 deg C to 85 deg C, VIN = 12 V, source page 5 |
| Feedback Voltage | 594 min, 600 typ, 602.5 max mV; TJ = -40 deg C to 85 deg C, VIN = 12 V, source page 5 |
| Feedback Voltage | 594 min, 600 typ, 606 max mV; TJ = -40 deg C to 150 deg C, VIN = 12 V, source page 5 |
| Selectable Switching Frequency | 400 kHz, 800 kHz, 1.2 MHz; set by MODE pin resistor divider, source page 1 |
| High-Side MOSFET On Resistance | 19 mOhm typ; TJ = 25 deg C, VVREG5 = 4.7 V, source page 5 |
| Low-Side MOSFET On Resistance | 9.4 mOhm typ; TJ = 25 deg C, VVREG5 = 4.7 V, source page 5 |
| VIN Supply Current | 600 typ, 700 max uA; TJ = 25 deg C, VEN = 5 V, non-switching, source page 5 |
| VIN Shutdown Current | 7 typ uA; TJ = 25 deg C, VEN = 0 V, source page 5 |
| EN High-Level Threshold Voltage | 1.175 min, 1.225 typ, 1.3 max V; VIN = 12 V, source page 5 |
| EN Low-Level Threshold Voltage | 1.025 min, 1.104 typ, 1.15 max V; VIN = 12 V, source page 5 |
| EN Hysteresis Voltage | 0.121 typ V; VIN = 12 V, source page 5 |
| EN Pull-Up Current | 0.35 min, 1.91 typ, 2.95 max uA; VEN = 1.0 V, source page 5 |
| EN Pull-Up Current | 3 min, 4.197 typ, 5.5 max uA; VEN = 1.3 V, source page 5 |
| VREG5 LDO Output Voltage | 4.58 min, 4.7 typ, 4.83 max V; TJ = -40 deg C to 150 deg C, source page 5 |
| VREG5 LDO Output Current Limit | 100 min, 150 typ, 200 max mA; TJ = -40 deg C to 150 deg C, source page 5 |
| Soft-Start Charge Current | 4.9 min, 6 typ, 7.1 max uA; TJ = -40 deg C to 150 deg C, source page 5 |
| Internal Soft-Start Time | 1.045 typ ms; internal soft-start time, source page 6 |
| Default Soft-Start Time | 1 ms; no external capacitor connected to SS pin, source page 1 |
| Output Current Limit | 6 min, 7.1 typ, 8.15 max A; ILIM-1 option, valley current limit, low-side sourcing, source page 5 |
| Output Current Limit | 8 min, 9.4 typ, 10.8 max A; ILIM option, valley current limit, low-side sourcing, source page 5 |
| Negative Current Limit | 3 typ A; low-side negative valley current, source page 5 |
| PGOOD Falling Fault Threshold | 84% of VREF; VFB falling fault, source page 5 |
| PGOOD Rising Good Threshold | 93% of VREF; VFB rising good, source page 5 |
| PGOOD Rising Fault Threshold | 116% of VREF; VFB rising fault, source page 5 |
| PGOOD Falling Good Threshold | 107% of VREF; VFB falling good, source page 5 |
| Output UVP Threshold | 68% x VFB; hiccup detect, source page 6 |
| Thermal Shutdown Threshold | 160 typ deg C; shutdown temperature, source page 6 |
| Thermal Shutdown Hysteresis | 15 typ deg C; main thermal shutdown, source page 6 |
| VREG5 Thermal Shutdown Threshold | 171 typ deg C; shutdown temperature, source page 6 |
| VREG5 Thermal Shutdown Hysteresis | 18 typ deg C; VREG5 thermal shutdown, source page 6 |
| VREG5 UVLO Rising Threshold | 4.1 min, 4.3 typ, 4.5 max V; VREG5 rising voltage, source page 6 |
| VREG5 UVLO Falling Threshold | 3.34 min, 3.57 typ, 3.8 max V; VREG5 falling voltage, source page 6 |
| VREG5 UVLO Hysteresis | 730 typ mV; VREG5 UVLO, source page 6 |
| SW On Time | 310 min, 340 typ, 380 max ns; VIN = 12 V, VOUT = 3.3 V, FSW = 800 kHz, source page 6 |
| Minimum SW On Time | 54 typ ns; VIN = 17 V, VOUT = 0.6 V, FSW = 1200 kHz, source page 6 |
| Minimum SW Off Time | 310 typ ns; 25 deg C, VFB = 0.5 V, source page 6 |
| Output Hiccup Delay | 1 cycle; relative to SS time, UVP detect, source page 6 |
| Output Hiccup Enable Delay | 7 cycle; relative to SS time, UVP detect, source page 6 |
| Operating Junction Temperature | -40 to 150 deg C; recommended operating conditions, source page 4 |
| Storage Temperature | -55 to 150 deg C; absolute maximum ratings, source page 4 |
| VIN Absolute Maximum Voltage | -0.3 to 20 V; absolute maximum ratings, source page 4 |
| SW Absolute Maximum Voltage | -2 to 19 V; absolute maximum ratings, source page 4 |
| SW Transient Absolute Maximum Voltage | -3 to 20 V; 10 ns transient, absolute maximum ratings, source page 4 |
| EN Absolute Maximum Voltage | -0.3 to 6.5 V; absolute maximum ratings, source page 4 |
| BOOT-SW Absolute Maximum Voltage | -0.3 to 6.5 V; absolute maximum ratings, source page 4 |
| BOOT Absolute Maximum Voltage | -0.3 to 25.5 V; absolute maximum ratings, source page 4 |
| SS, MODE, FB Absolute Maximum Voltage | -0.3 to 6.5 V; absolute maximum ratings, source page 4 |
| VREG5 Absolute Maximum Voltage | -0.3 to 6 V; absolute maximum ratings, source page 4 |
| PGOOD Absolute Maximum Voltage | -0.3 to 6.5 V; absolute maximum ratings, source page 4 |
| Absolute Maximum Output Current | 10 A; absolute maximum ratings, continuous 100% duty operation limited for reliability, source page 4 |
| HBM ESD Rating | +/-2000 V; ANSI/ESDA/JEDEC JS-001, source page 4 |
| CDM ESD Rating | +/-500 V; JEDEC JESD22-C101, source page 4 |
| Junction-to-Ambient Thermal Resistance | 42.3 deg C/W; RNN package, 18 pins, source page 5 |
| Junction-to-Case Top Thermal Resistance | 23.9 deg C/W; RNN package, 18 pins, source page 5 |
| Junction-to-Board Thermal Resistance | 10.0 deg C/W; RNN package, 18 pins, source page 5 |
| Junction-to-Top Characterization Parameter | 0.5 deg C/W; RNN package, 18 pins, source page 5 |
| Junction-to-Board Characterization Parameter | 10.0 deg C/W; RNN package, 18 pins, source page 5 |
| Junction-to-Case Bottom Thermal Resistance | 0.5 deg C/W; RNN package, 18 pins, source page 5 |
| Control Mode | D-CAP3 adaptive on-time control; device description, source page 1 |
| Light Load Operating Modes | Auto-skipping Eco-mode or forced continuous conduction mode; selectable by MODE pin, source page 1 |
| Bootstrap Capacitor | 0.1 uF; connect between BOOT and SW pins, source page 3 |
| VREG5 Bypass Capacitor | 4.7 uF; bypass VREG5 pin, source page 3 |
| Datasheet Status | request_only |
Product Overview
TPS568215 is a Texas Instruments synchronous step-down buck converter for Power_Management designs requiring conversion from a 4.5 V to 17 V input rail to a 0.6 V to 5.5 V regulated output. The recommended load range is 0 A to 8 A, while the absolute maximum output current is 10 A with reliability limits noted for continuous 100% duty operation.
The converter uses D-CAP3 adaptive on-time control and provides selectable switching frequencies of 400 kHz, 800 kHz, and 1.2 MHz through the MODE pin resistor divider. Light-load operation can be set for auto-skipping Eco-mode or forced continuous conduction mode. The feedback reference is centered at 600 mV, with specified limits across multiple junction-temperature ranges.
The device is supplied in an RNN VQFN 18-pin package with a 3.5 mm x 3.5 mm body. Assembly-related external components include a 0.1 uF bootstrap capacitor between BOOT and SW and a 4.7 uF bypass capacitor on VREG5. Protection and monitoring facts include PGOOD thresholds, VREG5 UVLO, output UVP hiccup timing, current-limit settings, and thermal shutdown thresholds.
Key Features
- 4.5 V to 17 V recommended input range
- 0 A to 8 A recommended output current
- 0.6 V to 5.5 V output voltage range
- 0.6 V reference with +/-1% temperature accuracy
- Selectable 400 kHz, 800 kHz, or 1.2 MHz switching
- D-CAP3 adaptive on-time control architecture
- Eco-mode or forced continuous conduction mode selection
- 19 mOhm high-side and 9.4 mOhm low-side MOSFETs
- 1 ms default soft-start without external SS capacitor
- PGOOD thresholds for VFB under and overvoltage monitoring
- VREG5 UVLO and thermal shutdown protection
- RNN 18-pin VQFN, 3.5 mm x 3.5 mm body
Typical Applications
- 4.5 V to 17 V rail conversion
- Up to 8 A point-of-load regulation
- 0.6 V to 5.5 V output rails
- Power_Management buck regulator designs
- Eco-mode light-load power conversion
- Forced continuous conduction mode supplies
- Systems needing PGOOD rail monitoring
- Compact 18-pin VQFN converter layouts
Procurement Notes
When requesting a quote for TPS568215, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input range is specified for the TPS568215?
The TPS568215 has a recommended input voltage range of 4.5 V to 17 V. Absolute maximum VIN is specified from -0.3 V to 20 V, which is a stress rating and not the recommended operating range.
What output current and voltage ranges does TPS568215 support?
The extracted datasheet facts list a recommended output current range of 0 A to 8 A and an output voltage range of 0.6 V to 5.5 V. The absolute maximum output current is listed as 10 A.
How is the TPS568215 switching frequency selected?
The selectable switching frequencies are 400 kHz, 800 kHz, and 1.2 MHz. The extracted facts state that frequency selection is set by a MODE pin resistor divider.
What package is used for the TPS568215?
The TPS568215 is listed in an RNN package, identified as an 18-pin VQFN with a 3.5 mm x 3.5 mm body. Thermal resistance values are specified for the RNN 18-pin package.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.