Product overview
Description
LDH85 is a high accuracy voltage regulator designed to be directly connected to car battery in automotive applications or generic battery connected industrial applications. Extended input voltage up to 85 V makes the device capable to support load dump transient, typical in automotive systems. Ultralow quiescent current at light load increases the battery operation lifetime in always-on-standby systems.
The device is stabilized with a small ceramic capacitor on the input and output.
An enable logic control function puts the LDH85 in shutdown mode allowing a total current consumption lower than 0.6 µA. Thermal protection is also included.
The device is available in automotive grade in a very small footprint DFN package with wettable flank, allowing the maximum space saving in the PCB (printed circuit board) design and AOI (automated optical inspection).
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All features
- AEC-Q100 grade 1 qualified
- Operating temperature range: -40 °C < TJ < 150 °C
- Input voltage from 5.0 V to 85 V
- Dropout voltage (1 V typ at 50 mA load)
- Low ground current (3 μA typ. at no load)
- ADJ from 1.2 V to 24 V
- Output voltage tolerance: ± 2.5% over temperature, 1 % at 25 °C
- 50 mA guaranteed output current
- Power good
- Logic-controlled electronic shutdown
- Internal current limit
- Short circuit protection
- Thermal shutdown
- Output active discharge function
- Package options:
- DFN 3x3 6L WF for Automotive Grade
- SOT23 5L for industrial
- AEC-Q100 grade 1 qualified
EDA Symbols, Footprints and 3D Models
STMicroelectronics - LDH85
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Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|
| LDH85MR | Preview Product is in design stage. EN | SOT23-5L | Industrial | Ecopack2 | - | - | |
| LDH85PURY | Preview Product is in design stage. EN | DFN6 3x3 | Automotive | Ecopack2 | - | - | |
LDH85MR
Package:
SOT23-5LMaterial Declaration**:
LDH85PURY
Package:
DFN6 3x3Material 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.
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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) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||
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| LDH85PURY | | | distributors No availability of distributors reported, please contact our sales office |
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| LDH85MR | | | distributors No availability of distributors reported, please contact our sales office |
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LDH85PURY Preview
LDH85MR Preview
(*) 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