器件名称: H78L12BM
功能描述: 3-TERMINAL POSITIVE VOLTAGE REGULATORS
文件大小: 108.86KB 共10页
简 介:HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : IC200403 Issued Date : 2004.03.01 Revised Date : 2004.08.31 Page No. : 1/10
H78LXXAM / BM H78LXXAA / BA
3-TERMINAL POSITIVE VOLTAGE REGULATORS
H78LXX Series Pin Assignment
3-Lead Plastic SOT-89 Package Code: M Pin 1: VOUT Pin 2: GND Pin 3: VIN 3-Lead Plastic TO-92 Package Code: A Pin 1: VOUT Pin 2: GND Pin 3: VIN 12 3
1
2
3
Description
These regulators employ internal current-limiting and thermal-shutdown, making them essentially indestructible. They can deliver up to 100mA output current.
Features
Maximum Output Current of 100mA (Tc=25°C) Internal Short-Circuit Current Limiting Internal Thermal Overload Protection TO-92 & SOT-89 Package Typical Application
VIN CIN
0.33uF
(Note 1)
3
H78LXX Series
2
1
VOUT COUT
0.1uF
(Note 2)
Absolute Maximum Ratings
(Ta=25°C, Unles Otherwise Specified) Characteristic Input Voltage Power Dissipation Operating Temperature Storage Temperature Junction Temperature Thermal Resistance Symbol VIN PD Topr Tstg Tj Rth(j-a) Rating 40 TO-92 700 SOT-89 500 -30 to 85 -55 to 150 150 208 Unit V mW mW o C o C o C o C/W
Note 1: CIN is required if regulator is located an appreciable distance from power supply filter. Note 2: COUT is not needed for stability; however, it does improve transient response. Values of less than 0.1uF could cause instability.
Schematic Diagram & Equivalent Circuit
Schematic Diagram Equivalent Circuit
VIN
Input
3
Series Pass Element Current Generator SOA Protection
……
