Product overview
Description
The LD49300 is a high-bandwidth, low-dropout, 3.0 A voltage regulator, ideal for powering core voltages of low power microprocessors. The LD49300 implements a dual supply configuration, which guarantees a very low output impedance and a fast transient response. The LD49300 requires a bias input supply and a main input supply, allowing ultra-low input voltages on the main supply rail. The input supply operates from 1.4 V to 5.5 V and bias supply requires between 3 V and 6 V to work properly. The LD49300 offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages from 0.8 V. The LD49300 requires a minimum output capacitance for stability, and works optimally with small ceramic capacitors.-
All features
- Input voltage range:
- VI = 1.4 V to 5.5 V
- VBIAS = 3 V to 6 V
- Stable with ceramic capacitors
- ±1.5% initial tolerance
- Maximum dropout voltage (VI - VO) 400 mV over the operating temperature range
- Adjustable output voltage starting from 0.8 V
- Very fast transient response (up to 10 MHz bandwidth)
- Excellent line and load regulation specifications
- Logic-controlled shutdown option
- Thermal shutdown and current limit protection
- Junction temperature range: - 25 °C to 125 °C
- Input voltage range:
Featured Videos
All resources
| Resource title | Version | Latest update |
|---|
Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 4.0 | 19 Sep 2016 | 19 Sep 2016 |
Brochures (2)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 02 Jul 2021 | 02 Jul 2021 | ||
| 2.0 | 19 Mar 2021 | 19 Mar 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - LD49300
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD49300PT08R | NRND | PPACK 5 | 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) | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Country of Origin | Budgetary Price (US$)*/Qty | More info | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||||
| LD49300PT08R | 1 distributors | NRND | EAR99 | NEC | Tape And Reel | PPACK 5 | -25 | 125 | 0.8 | 1.5 | 3 | CHINA | 1.0465 / 1k | |||
Marketing Status
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.0465 / 1k(*) 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
