Product overview
Description
The ST2S06A33 and ST2S06B are dual step-down DC-DC converters optimized for powering low-voltage digital cores in ODD applications and, generally, to replace high current linear solutions when the power dissipation may cause high heating of the application environment. It provides up to 0.5 A over an input voltage range of 2.5 V to 5.5 V.
A high switching frequency of 1.5 MHz allows the use of tiny surface-mount components as well as a resistor divider to set the output voltage value. Only an inductor and two capacitors are required. A low output ripple is guaranteed by the current mode PWM topology and the utilization of low ESR SMD ceramic capacitors. The devices are thermally protected and current-limited to prevent damage due to accidental short-circuit. The ST2S06A33 and ST2S06B are available in the QFN12L (4x4 mm) package.
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All features
- Step-down current mode PWM (1.5 MHz) DC-DC converter
- Fixed or adjustable output voltage from 0.8 V
- 2% DC output voltage tolerance
- Synchronous rectification
- Reset function for A version
- Inhibit function for B version
- Internal soft start for startup current limitation and power ON delay of 50-100 μs
- Typical efficiency: > 90%
- 0.5 A output current capability
- Non-switching quiescent current: max 1.2 mA over temperature range
- RDS(ON)150 mΩ (typ.)
- Uses tiny capacitors and inductors
- Available in QFN12L (4x4 mm)
EDA Symbols, Footprints and 3D Models
STMicroelectronics - ST2S06
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| ST2S06A33PQR | Active | QFN12 4x4 | Industrial | Ecopack2 | |
| ST2S06BPQR | Active | QFN12 4x4 | Industrial | Ecopack2 | |
ST2S06A33PQR
Package:
QFN12 4x4Material Declaration**:
ST2S06BPQR
Package:
QFN12 4x4Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| ST2S06A33PQR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| ST2S06BPQR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
ST2S06A33PQR Active
ST2S06BPQR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors