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The LD49150 is a high-bandwidth, low-dropout, 1.5 A voltage regulator, ideal for powering core voltages of low power microprocessors. The LD49150 implements a dual supply configuration, which guarantees a very low output impedance and a very fast transient response. The LD49150 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 the bias supply requires between 3 V and 6 V to work properly. The LD49150 offers fixed output voltages from 0.8 V to 1.8 V and adjustable output voltages starting from 0.8 V. The LD49150 requires a minimum output capacitance for stability, and works optimally with small ceramic capacitors.
Key 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) 200 mV over the operating temperature range
- Adjustable output voltage starting from 0.8 V
- 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:
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD49150PT08R | Active | PPACK 5 | Industrial | Ecopack2 | |
| LD49150PT10R | NRND | PPACK 5 | Industrial | Ecopack2 | |
| LD49150PT12R | 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 | Package | Packing Type | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | Marketing Status | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LD49150PT08R | 1 distributors | Buy now | PPACK 5 | Tape And Reel | 0.8 | 1.5 | 1.5 | Active | EAR99 | CHINA | 0.91 / 1k | |
| LD49150PT12R | 2 distributors | Buy now | PPACK 5 | Tape And Reel | 1.2 | 1.5 | 1.5 | NRND | EAR99 | CHINA | 0.91 / 1k | |
| LD49150PT10R | 1 distributors | PPACK 5 | Tape And Reel | 1 | 1.5 | 1.5 | NRND | EAR99 | CHINA | 0.91 / 1k |
LD49150PT10R
Package
PPACK 5Packing Type
Tape And ReelBudgetary Price (US$)*/Qty
0.91 / 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
