TPS62A02N
Synchronous Buck ConverterThe TPS62A02N is a synchronous buck converter from Texas Instruments. View the full TPS62A02N datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
TPS62A02N shares its datasheet with TPS62A02, whose page lists every part number it covers.
Official TPS62A02N datasheet (PDF) — the source this page was extracted from.
Manufacturer
Texas InstrumentsCategory
Switching Regulators (Buck)TPS62A02N Key Specifications
| Parameter | Value |
|---|---|
| High-side MOSFET on-resistance | 100 mΩ (VIN = 5 V) |
| Low-side MOSFET on-resistance | 67 mΩ (VIN = 5 V) |
| High-side peak current limit | 2.7 A min, 3.4 A typ (TPS62A02) |
| Quiescent current | 23 μA typ (non-switching, VEN = High, VFB = 610 mV) |
| Shutdown supply current | 0.01 μA typ, 2 μA max (VEN = Low) |
| Switching frequency | 2.4 MHz typ (FCCM, VIN = 5 V, VOUT = 1.8 V) |
| Feedback voltage accuracy | 600 mV ±1% (TJ = 0 °C to 125 °C, PWM mode) |
| Internal fixed soft-start time | 1 ms max (from EN = High to VFB = 0.56 V) |
TPS62A02N Overview
Part: TPS62A02 — Texas Instruments
Type: Synchronous Buck Converter
Description: 2.5 V to 5.5 V input, 2 A synchronous step-down converter with 2.4 MHz switching frequency, integrated low-RDSON FETs, and up to 100% duty cycle operation.
Operating Conditions:
- Supply voltage: 2.5 V to 5.5 V
- Operating temperature: -40 °C to 125 °C (operating junction temperature)
- Output voltage range: 0.6 V to VIN
Absolute Maximum Ratings:
- Max supply voltage: 6.5 V (VIN, EN, PG)
- Max junction/storage temperature: 150 °C
Key Specs:
- High-side MOSFET on-resistance: 100 mΩ (VIN = 5 V)
- Low-side MOSFET on-resistance: 67 mΩ (VIN = 5 V)
- High-side peak current limit: 2.7 A min, 3.4 A typ (TPS62A02)
- Quiescent current: 23 μA typ (non-switching, VEN = High, VFB = 610 mV)
- Shutdown supply current: 0.01 μA typ, 2 μA max (VEN = Low)
- Switching frequency: 2.4 MHz typ (FCCM, VIN = 5 V, VOUT = 1.8 V)
- Feedback voltage accuracy: 600 mV ±1% (TJ = 0 °C to 125 °C, PWM mode)
- Internal fixed soft-start time: 1 ms max (from EN = High to VFB = 0.56 V)
Features:
- 2.4 MHz switching frequency with adaptive off-time peak current control
- 100% mode operation for low dropout
- Power Save Mode (PSM) or Forced PWM (FPWM) options
- Open-drain Power-Good output pin (optional)
- Short-circuit protection with hiccup mode
- Internal soft start-up and active output discharge
- Thermal shutdown protection with automatic recovery
- Pin-to-pin compatible with TLV62585 (DRL) and TLV62569 (DDC)
Applications:
- Set top box, TV applications
- IP network camera, Multi-function printer
- Wireless router, solid state drive
- Battery-powered applications
- General purpose point-of-load supply
Package:
- SOT-563 6-pin (DRL, 1.60 mm × 1.60 mm)
- SOT-23 6-pin (DDC, 2.90 mm × 2.80 mm)
TPS62A02N Features
- 2.5V to 5.5V input voltage range
- 0.6V to VIN adjustable output voltage range
- 180mΩ/120mΩ low RDSON switches (1A DRL)
- 100mΩ/67mΩ low RDSON switches (1A DDC, 2A)
- < 23μA quiescent current
- 1% feedback accuracy (0°C to 125°C)
- 100% mode operation
- 2.4MHz switching frequency
- Power save mode or PWM option available
- Power-good output pin (optional)
- Short-circuit protection (HICCUP)
- Internal soft start-up
- Active output discharge
- Thermal shutdown protection
- Pin-to-pin compatible with the TLV62585 (DRL)
- Pin-to-pin compatible with the TLV62569 (DDC)
TPS62A02N Applications
- Set top box, TV applications
- IP network camera, Multi-function printer
- Wireless router, solid state drive
- Battery-powered applications
- General purpose point-of-load supply
TPS62A02N Pin Configuration
SOT563-6 DRL package (Top View)
Not to scale SOT563-6 DRL package (Top View) TPS62A02N
Not to scale
Figure 5-1. 6-Pin DRL SOT-563 Package (Top View), 6-Pin DDC SOT-23 Package (Top View)
Table 5-1. Pin Functions
| Pin Number - Name | Pin Number - SOT563-6 | Pin Number - SOT23-6 | Type (1) | Description |
|---|---|---|---|---|
| EN | 4 | 1 | I | Device enable logic input. Logic high enables the device. Logic low disables the device and turns the device into shutdown. Do not leave the pin floating. |
| FB | 5 | 6 | I | Feedback pin for the internal control loop. Connect this pin to an external feedback divider. |
| GND | 1 | 2 | G | Ground pin. |
| PG | 6 | 5 | O | Power-good open-drain output pin. The pullup resistor cannot be connected to any voltage higher than 5.5V. If unused, leave the pin open or connect to GND. |
| OUT (2) | 6 | / | I | Output voltage sense pin. |
| SW | 2 | 3 | O | Switch pin connected to the internal FET switches and inductor terminal. Connect the inductor of the output filter to this pin. |
| VIN | 3 | 4 | I | Input voltage pin. Connect the input capacitor as close as possible between V IN and GND. |
- (1) I = Input, O = Output, G = Ground.
- (2) Only for TPS62A0x N versions.
TPS62A02N Electrical Characteristics
TJ = -40°C to +125°C, VIN = 2.5 V to 5.5 V. Typical values are at T J = 25°C and V IN = 5 V (unless otherwise noted)
| PARAMETER | PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| SUPPLY | ||||||
| I Q(VIN) | VIN quiescent current | Non-switching; V EN = High; V FB = 610 mV; TPS62A01xDRL | 20 | μA | ||
| I Q(VIN) | VIN quiescent current | Non-switching; V EN = High; V FB = 610 mV; TPS62A01xDDC; TPS62A02 | 23 | μA | ||
| I SD(VIN) | VIN shutdown supply current | V EN = Low | 0.01 | 2 | μA | |
| UVLO | ||||||
| V UVLO(R) | VIN UVLO rising threshold | V IN rising | 2.3 | 2.4 | 2.5 | V |
| V UVLO(F) | VIN UVLO falling threshold | V IN falling | 2.2 | 2.3 | 2.4 | V |
| ENABLE | ||||||
| V EN(R) | EN voltage rising threshold | EN rising; enable switching | 1.2 | V | ||
| V EN(F) | EN voltage falling threshold | EN falling, disable switching | 0.4 | V | ||
| V EN(LKG) | EN Input leakage current | V EN = 5 V | 100 | nA | ||
| REFERENCE VOLTAGE | ||||||
| V FB | FB voltage | T J = 0°C to 125°C, PWM mode | 594 | 600 | 606 | mV |
| V FB | FB voltage | PWM mode | 591 | 600 | 609 | mV |
| I FB(LKG) | FB input leakage current | V FB = 0.6 V | 100 | nA | ||
| SWITCHING | FREQUENCY | |||||
| f SW(FCCM) | Switching frequency, FPWM operation | V IN = 5 V; V OUT = 1.8 V | 2400 | kHz | ||
| STARTUP | ||||||
| Internal fixed soft-start time | From EN = High to V FB = 0.56 V | 1 | ms | |||
| POWER STAGE | ||||||
| R DSON(HS) | High-side MOSFET on-resistance | TPS62A01xDRL; V IN = 5 V | 180 | mΩ | ||
| R DSON(LS) | Low-side MOSFET on-resistance | TPS62A01xDRL; V IN = 5 V | 120 | mΩ | ||
| R DSON(HS) | High-side MOSFET on-resistance | V IN = 5 V; TPS62A01xDDC; TPS62A02 | 100 | mΩ | ||
| R DSON(LS) | Low-side MOSFET on-resistance | V IN = 5 V; TPS62A01xDDC; TPS62A02 | 67 | mΩ | ||
| OVERCURRENT | PROTECTION | |||||
| I HS(OC) | High-side peak current limit | TPS62A01 | 1.3 | 1.8 | A | |
| I LS(OC) | Low-side valley current limit | TPS62A01 | 1.8 | A | ||
| I HS(OC) | High-side peak current limit | TPS62A02 | 2.7 | 3.4 | A | |
| I LS(OC) | Low-side valley current limit | TPS62A02xDRL | 4.2 | A | ||
| I LS(OC) | Low-side valley current limit | TPS62A02xDDC | 3.15 | A | ||
| POWER GOOD | ||||||
| V PGTH | Power Good threshold | PG low, FB falling | 93.5 | % | ||
| V PGTH | Power Good threshold PG delay falling PG delay rising | PG high, FB rising | 96 35 10 | % μs μs | ||
| I PG(LKG) | PG pin Leakage current when open drain output is high | V PG = 5 V | 100 | nA | ||
| PG pin output low-level voltage | I PG = 1 mA | 400 | mV |
TPS62A02N Absolute Maximum Ratings
Over operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Pin voltage (2) | VIN, EN, PG | -0.3 | 6.5 | V |
| Pin voltage (2) | SW, DC | -0.3 | V IN + 0.3 | V |
| Pin voltage (2) | SW, transient < 10 ns | -3.0 | 10 | V |
| Pin voltage (2) | FB | -0.3 | 3 | V |
| T J | Operating junction temperature | -40 | 150 | °C |
| T stg | Storage temperature | -55 | 150 | °C |
TPS62A02N Recommended Operating Conditions
Over operating junction temperature range (unless otherwise noted)
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| V IN | Input supply voltage range | Input supply voltage range | 2.5 | 5.5 | V | |
| V OUT | Output voltage range | Output voltage range | 0.6 | V IN | V | |
| I OUT | Output current range | TPS62A01 | 0 | 1 | A | |
| I OUT | Output current range (1) | TPS62A02 | 0 | 2 | A | |
| L | Effective inductance | 1.0 | μH | |||
| C OUT | Output capacitance | V OUT < 1.2 V | 44 | μF | ||
| C OUT | Output capacitance | 1.2 V ≤ V OUT < 1.8 V | 22 | μF | ||
| C OUT | Output capacitance | V OUT ≥ 1.8 V | 10 | μF | ||
| I PG | Power Good input current capability | 0 | 1 | mA | ||
| T J | Operating junction temperature | -40 | 125 | °C |
TPS62A02N Thermal Information
| THERMAL METRIC (1) | TPS62A0x DRL - 6 PINS | TPS62A0x DDC - 6 PINS | UNIT | |
|---|---|---|---|---|
| R θJA | Junction-to-ambient thermal resistance | 157.3 | 132.1 | °C/W |
| R θJC(top) | Junction-to-case (top) thermal resistance | 92.2 | 74.9 | °C/W |
| R θJB | Junction-to-board thermal resistance | 45.6 | 45.5 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 4.0 | 25.5 | °C/W |
TPS62A02N Typical Application
Efficiency vs Output Current at 5VIN (TPS62A02x)
TPS62A02N Package Information
| PART NUMBER | PACKAGE (1) | PACKAGE SIZE (2) |
|---|---|---|
| TPS62A01x | DRL (SOT-563, 6) | 1.60mm × 1.60mm |
| TPS62A01x | DDC (SOT-23, 6) | 2.90mm × 2.80mm |
| TPS62A02x | DRL (SOT-563, 6) | 1.60mm × 1.60mm |
| TPS62A02x | DDC (SOT-23, 6) | 2.90mm × 2.80mm |
| TPS62A02Nx | DRL (SOT-563, 6) | 1.60mm × 1.60mm |
- (1) For more information, see Section 11.
- (2) The package size (length × width) is a nominal value and includes pins, where applicable.
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| TPS62A01 | Texas Instruments | — |
| TPS62A01-Q1 | Texas Instruments | — |
| TPS62A01A | Texas Instruments | — |
| TPS62A01A-Q1 | Texas Instruments | — |
| TPS62A01XDDC | Texas Instruments | — |
| TPS62A01XDRL | Texas Instruments | — |
| TPS62A02 | Texas Instruments | — |
| TPS62A02-Q1 | Texas Instruments | — |
| TPS62A02A | Texas Instruments | — |
| TPS62A02A-Q1 | Texas Instruments | — |
| TPS62A02NA | Texas Instruments | — |
| TPS62A02NX | Texas Instruments | — |
| TPS62A02XDDC | Texas Instruments | — |
| TPS62A02XDRL | Texas Instruments | — |
| TPS62A0XA | Texas Instruments | — |
Other Switching Regulators (Buck)
- TPS54302 – Texas Instruments, Synchronous Step-Down Converter
- MAX20730 – Analog Devices, Synchronous Switching Regulator
- TLV62568 – Texas Instruments, Synchronous Buck Converter
- LM2596 – Texas Instruments, Step-Down Voltage Regulator
- TPS562200 – Texas Instruments, Synchronous Buck Converter
- AP63203WU – Diodes Incorporated, Synchronous Buck Converter
- TPS54202 – Texas Instruments, Synchronous Buck Converter
- AP63357DV-7 – Diodes Incorporated, Synchronous Buck Converter
All Switching Regulators (Buck) datasheetsAll Texas Instruments datasheets (2,418)
Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.
Ask your AI agent about the TPS62A02N
Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.
claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp
Then ask: "Can the TPS62A02N run from my 12 V rail? Check it against the datasheet limits."
Create a free account $2 of usage every month, no card needed.