Product overview
Description
The STBB2 is a fixed frequency, high efficiency, buck-boost DC-DC converter which provides output voltages from 1.2 V to 4.5 V starting from input voltage from 2.4 V to 5.5 V. The device can operate with input voltages higher than, equal to, or lower than the output voltage making the product suitable for single Li-Ion, multi-cell alkaline or NiMH applications where the output voltage is within the battery voltage range. The low-RDS(on)N-channel and P-channel MOSFET switches are integrated and help to achieve high efficiency. The MODE pin allows the selection between auto mode and forced PWM mode, taking advantage from either lower power consumption or best dynamic performance. The bypass function allows the battery power saving. In this operating mode, the high-side switches are turned on so that the output voltage is equal to the input voltage; in this condition the current consumption is reduced to a maximum of 5 μA. The device also includes soft-start control, thermal shutdown, and current limit. The STBB2 is packaged in Flip Chip 20 bumps with 0.4 mm pitch.-
All features
- Operating input voltage range from 2.4 V to 5.5 V
- ± 2% output voltage tolerance over process and temperature variations
- Bypass power save function
- Selectable output voltage with dedicated VSEL pin
- Very fast line and load transients
- 2.5 MHz switching frequency
- Power save mode (PS) at light load
- Typical efficiency higher than 90%
- 50 μA max. quiescent current
- Flip Chip 20 bumps 0.4 mm pitch 2.1 x 1.8 mm
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All tools & software
All resources
| Resource title | Latest update |
|---|
Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 19 Sep 2016 |
19 Sep 2016
|
Technical Notes & Articles (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 20 Jan 2020 |
20 Jan 2020
|
EDA Symbols, Footprints and 3D Models
STMicroelectronics - STBB2
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STBB2J29-R |
Active
|
CSP P 0.4 mm | Industrial | Ecopack2 |
|
| STBB2J30-R |
Active
|
CSP P 0.4 mm | Industrial | Ecopack2 | |
| STBB2JAD-R |
Active
|
CSP P 0.4 mm | Industrial | Ecopack2 |
(**) 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 | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| STBB2JAD-R | 2 distributors | Free Sample Buy Direct |
Active
|
EAR99 | NEC | Tape And Reel | CSP P 0.4 mm | - | - | ITALY | 1.074 / 1k | |
| STBB2J29-R | 1 distributors |
Active
|
EAR99 | NEC | Tape And Reel | CSP P 0.4 mm | -40 | 85 | CHINA | 1.074 / 1k | ||
| STBB2J30-R | 1 distributors |
Active
|
EAR99 | NEC | Tape And Reel | CSP P 0.4 mm | - | - | CHINA | 1.074 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.074 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.074 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
