Product overview
Description
The LD56100 high accuracy voltage regulator provides 1 A of current from an input voltage ranging from 1.8 V to 5.5 V, with a typical dropout voltage of 120 mV. It is available in DFN8 (1.2 x 1.6 mm) package, allowing the maximum space saving.The device is stabilized with a ceramic capacitor on the output. The ultra-low drop voltage, low quiescent current and fast transient response, together with the internal soft-start circuit, make the LD56100 suitable for low power battery-operated applications.
An enable logic control function puts the LD56100 in shutdown mode allowing a total current consumption lower than 0.1 μA. Short-circuit protection with current limit foldback and thermal protection are also included.
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All features
- Input voltage from 1.8 to 5.5 V
- Ultra-low dropout voltage (120 mV typ. at 1 A load and VOUT = 3.3 V)
- Very low quiescent current (100 µA typ. at no-load, 0.03 µA typ. in off mode)
- Output voltage tolerance: ± 1% from -40 °C to +85 °C
- Ultra-low Noise: 13 µV RMS Noise from 10 Hz to 100 kHz at VOUT = 3.0 V
- High PSRR (70 dB@1 kHz)
- Wide range of output voltages available on request: from 1.0 V up to 5.0 V in 50 mV step
- Logic-controlled electronic shutdown
- Internal soft-start
- Optional output voltage discharge feature
- Compatible with ceramic capacitor COUT = 1 µF
- Internal current limit foldback and thermal protections
- Available in DFN8 (1.2x1.6 mm)
- Operating temperature range: -40 °C to 125 °C
Featured Videos
All resources
| Resource title | Version | Latest update |
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Product Specifications (1)
| Resource title | Version | Latest update | ||
|---|---|---|---|---|
| 2.0 | 23 Jun 2020 | 23 Jun 2020 |
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 - LD56100
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LD56100DPU115R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU125R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU15R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU175R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU185R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU18R | Active | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU25R | Active | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU28R | Active | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU30R | Active | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU31R | Preview | DFN8 1.2x1.6 | Industrial | Ecopack2 | |
| LD56100DPU33R | Active | DFN8 1.2x1.6 | Industrial | Ecopack2 |
LD56100DPU115R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU125R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU15R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU175R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU185R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU18R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU25R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU28R
Package:
DFN8 1.2x1.6Material Declaration**:
LD56100DPU31R
Package:
DFN8 1.2x1.6Material 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 | 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 | |||||||||||||||
| LD56100DPU175R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.75 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU18R | 2 distributors | Active | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.8 | 1 | 1 | CHINA | 0.16 / 1k | |||
| LD56100DPU28R | 1 distributors | Free Sample Buy Direct | Active | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 2.8 | 1 | 1 | CHINA | 0.16 / 1k | ||
| LD56100DPU15R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.5 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU115R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.15 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU33R | 1 distributors | Active | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 3.3 | 1 | 1 | CHINA | 0.16 / 1k | |||
| LD56100DPU30R | 3 distributors | Active | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 3 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU125R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.25 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU185R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 1.8 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU31R | No availability of distributors reported, please contact our sales office | Preview | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | 3.1 | 1 | 1 | CHINA | 0.176 / 1k | |||
| LD56100DPU25R | No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape And Reel | DFN8 1.2x1.6 | -40 | 85 | - | 1 | 1 | CHINA | 0.176 / 1k | |||
Marketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.16 / 1kMarketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.16 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
PreviewECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 1kMarketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
0.176 / 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
