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L5963 is a dual step-down switching regulator with internal power switches, high side driver and a low drop-out linear regulator that can operate as standby regulator or normal LDO.
All the regulators can be connected directly to the vehicle battery. In addition to an adjustable voltage detector, voltage supervisors are available.
The two DC-DC converters can work in free-run condition or synchronize themselves to an external clock. DC/DCs' PWM outputs have a 180° phase shift.
The high operating frequency allowed by the synchronization input helps to reduce AM and FM interferences and grants the use of small and low cost inductors and capacitors.
This IC finds application in the automotive segment, where load dump protection and wide input voltage range are mandatory.
A slug-up package option is available for applications which require heatsink use.
In standby condition the device guarantees extremely low quiescent current (25 μA typical @ -40 °C < T < 85 °C)主要特性
- AEC-Q100 qualified
- Two step-down synchronous switching voltage regulators with internal power switches:
- Wide input voltage range (from 3.5 V to 26 V)
- Internal high-side/ low-side NDMOS
- 1 V minimum output
- 3.0 A load current
- 250 kHz free-run frequency
- 250 kHz < f < 2 MHz synchronization range
- Integrated soft-start
- Independent hardware enable pins
- Independent power supply
- 180° PWM output phase shift
- Programmable switching frequency divider by 1, 2, 4 or 8 between the two DC/DC regulators
- Power good function
- One standby / linear regulator
- Output voltage programmable with external resistor divider
- 250 mA maximum current capability
- Backup function
- Power good function
- One high side driver
- 0.5 V max drop @ 0.5 A
- Protected against short to ground and battery, loss of ground and battery, unsupplied short to battery
- Programmable under voltage battery detector
- Under voltage threshold adjustable through dedicated pin (VDIN)
- Load dump protection
- Independent thermal protection on all regulators
- Independent current limit on all regulators
- Extremely low quiescent current in standby conditions
- Power good / adjustable voltage detector outputs to realize customized power up/down sequences
样片和购买
| 产品型号 | 封装 | 包装类型 | 温度（ºC） | 供货状态 | 预算价格(US$) | 数量 | ECCN (US) | Country of Origin | 更多信息 | 从分销商订购 | 从ST订购 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L5963DN-EHX | PowerSSO 36 | Tube | -40 | 105 |
Active
|
2.4 | 1000 | EAR99 | ITALY | No availability of distributors reported, please contact our sales office | ||
| L5963U-KBX | PowerSSO 36 | Tube | -40 | 105 |
Active
|
2.4 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
| L5963Q-V0T | VFQFPN 48 7x7x1.0 | Tape And Reel | -40 | 105 |
Active
|
2.6 | 1000 | EAR99 | MALAYSIA | No availability of distributors reported, please contact our sales office | ||
| L5963Q-V0Y | VFQFPN 48 7x7x1.0 | Tray | -40 | 105 |
Active
|
2.6 | 1000 | EAR99 | MALAYSIA | 查看供货情况 | 立即购买 | |
| L5963DN-EHT | PowerSSO 36 | Tape And Reel | -40 | 105 |
Active
|
2.4 | 1000 | EAR99 | MALAYSIA | 查看供货情况 | 立即购买 | |
| L5963D-EHT | PowerSSO 36 | Tape And Reel | -40 | 105 |
NRND
|
2.4 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
| L5963U-KBT | PowerSSO 36 | Tape And Reel | -40 | 105 |
Active
|
2.4 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
| L5963D-EHX | PowerSSO 36 | Tube | -40 | 105 |
Preview
|
2.4 | 1000 | EAR99 | - | No availability of distributors reported, please contact our sales office | ||
L5963DN-EHX
封装
PowerSSO 36包装类型
TubeUnit Price (US$)
2.4*L5963U-KBX
封装
PowerSSO 36包装类型
TubeUnit Price (US$)
2.4*L5963Q-V0T
封装
VFQFPN 48 7x7x1.0包装类型
Tape And ReelUnit Price (US$)
2.6*L5963D-EHT
封装
PowerSSO 36包装类型
Tape And ReelUnit Price (US$)
2.4*L5963U-KBT
封装
PowerSSO 36包装类型
Tape And ReelUnit Price (US$)
2.4*L5963D-EHX
封装
PowerSSO 36包装类型
TubeUnit Price (US$)
2.4*(*) 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
评估工具
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Picture 产品型号 制造商 描述 EVAL-L5963 ST L5963 Evaluation board EVAL-L5963Q ST L5963Q evaluation board
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L5963D-EHT |
NRND
|
PowerSSO 36 | 汽车 | Ecopack2 | |
| L5963D-EHX |
Preview
|
PowerSSO 36 | 汽车 | Ecopack2 | |
| L5963DN-EHT |
Active
|
PowerSSO 36 | 汽车 | Ecopack2 | |
| L5963DN-EHX |
Active
|
PowerSSO 36 | 汽车 | Ecopack2 | |
| L5963Q-V0T |
Active
|
VFQFPN 48 7x7x1.0 | 汽车 | Ecopack2 | |
| L5963Q-V0Y |
Active
|
VFQFPN 48 7x7x1.0 | 汽车 | Ecopack2 | |
| L5963U-KBT |
Active
|
PowerSSO 36 | 汽车 | Ecopack2 | |
| L5963U-KBX |
Active
|
PowerSSO 36 | 汽车 | 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.
