LD1085XX 3A LOW DROP ADJUSTABLE POSITIVE VOLTAGE REGULATOR

The LD1085xx is a low drop voltage regulator able to provide up to 3A of output current. Dropout is guaranteed at a maximum of 1.2V at the maximum output current, decreasing at lower loads. The LD1085xx is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance.

A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085xx quiescent current flows into the load, so increase efficiency. Only a 10µF minimum capacitor is need for stability.

The device is supplied in TO-220, TO-220FP, DPAK, D²PAK and D²PAK/A. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±1% at 25 °C.

The LD1085xx is available as Automotive Grade in TO-220FP package only, for the option of adjustable output voltage whose commercial part number is shown in the Table 11 (order codes). This device is qualified according to the specification AEC-Q100 of the Automotive market, in the temperature range -40 °C to 125 °C, and the statistical tests PAT, SYL, SBL are performed

技术特性

Typical dropout 1.3V (at 3A)
Three terminal adjustable output voltage
Guaranteed output current up to 3A
Output tolerance ±2% at 25°C and ±3% in full temperature range
Internal power and thermal limit
Wide operating temperature range -40°C to 125°C
Package available: DPAK
Pinout compatibility with standard adjustable VREG

内部原理图

LD1085XX 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
LD1085D2T-R	Active		1000	D²PAK C-LEAD CUT	Tape And Reel	-40 °C-125 °C	LD1085D2T-R
LD1085P	Active		1000	TO-220FP	Tube	-40 °C-125 °C	LD1085P
LD1085D2M-R	Active		1000	D²PAK SMD	Tape And Reel	-40 °C-125 °C	LD1085D2M-R
LD1085V	Active		1000	TO-220	Tube	-40 °C-125 °C	LD1085V

DATASHEET

描述	版本	大小
LD1085XX : DS1758: 3 A low drop positive voltage regulator adjustable and fixed	25	943KB