BD35269HFN
BD35269HFN is Nch FET Ultra LDO manufactured by ROHM.
Description
The BD35269HFN ultra low-dropout linear chipset regulator operates from a very low input supply, and offers ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RON MAX=400mΩ) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=1.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the 35269HFN designed to enable significant package profile downsizing and cost reduction. In BD35269HFN, The NRCS (soft start) function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply sequence is required.
- Features
1) Internal high-precision reference voltage circuit (0.65V±1%)
2) Internal high-precision output voltage circuit 3) Built-in VCC undervoltage lockout circuit (VCC=3.80V) 4) NRCS (soft start) function reduces the magnitude of in-rush current 5) Internal Nch MOSFET driver offers low ON resistance (250mΩ typ)
6) Built-in short circuit protection (SCP) 7) Built-in current limit circuit (1.0A min) 8) Built-in thermal shutdown (TSD) circuit 9) Small package HSON8 : 2.9mm×3.0mm×0.6mm
10) Tracking function
- Applications Notebook puters, Desktop puters, LCD-TV, DVD, Digital appliances
- Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Ratings
Unit
Input Voltage 1 Input Voltage 2 Maximum Output Current
VCC VIN IO
+6.0
- 1 +6.0
- 1
1- 1
Enable Input Voltage Power Dissipation 1
VEN -0.3～+6.0 V Pd1 0.63
- 2 W
Power Dissipation 2
Pd2 1.35
- 3 W
Power Dissipation 3
Pd3 1.75- 4 W
Operating Temperature Range
Topr
-10～+100
℃
Storage Temperature Range
Tstg
-55～+125
℃
Maximum Junction Temperature Tjmax
+150
℃
- 1 Should not exceed...
