CMOS LDO Regulators for Portable Equipments 1ch 150mA CMOS LDO Regulators No.11020EBT05 BHPB1WHFV Series Description The BHPB1WHFV regulator series can respond to changes in output current by switching to a state in which regulator characteristics are ideal. The regulators cut power consumption by lowering their own current consumption to approximately 2 A when the application is operating in the standby state. During normal-current operation it will automatically switch to high-speed operating mode. The IC s soft start function reduce the rush current that flows to the output capacitors during startup. The HVSOF5 package, which features excellent heat dissipation, contributes to space-saving application designs. Features 1) Automatic switching between low-consumption and high-speed modes 2) Built-in rush current prevention circuit 3) Low-voltage 1.7 V operation 4) High accuracy output voltage: 1% 5) Circuit current during low-consumption operation: 2 A 6) Stable with a ceramic capacitor (0.47 F) 7) Built-in temperature and overcurrent protection circuits 8) Built-in output discharge during standby operation function 9) Ultra-small HVSOF5 power package Applications Battery-driven portable devices, etc. Product lineup 150 mA BH PB1WHFV Series Product name 1.2 1.5 1.8 2.5 2.8 2.9 3.0 3.1 3.3 Package BHPB1WHFV HVSOF5 Model name: BH PB1W a b Symbol Description Output voltage specification Output voltage (V) Output voltage (V) 12 1.2 V (Typ.) 29 2.9 V (Typ.) 15 1.5 V (Typ.) 30 3.0 V (Typ.) a 18 1.8 V (Typ.) 31 3.1 V (Typ.) 25 2.5 V (Typ.) 33 3.3 V (Typ.) 28 2.8 V (Typ.) b Package HFV: HVSOF5 www.rohm.com 2011.01 - Rev.B 1/10 2011 ROHM Co., Ltd. All rights reserved. Technical Note BHPB1WHFV Series Absolute maximum ratings (Ta = 25C) Parameter Symbol Ratings Unit Power supply voltage VMAX 0.3 to +6.5 V *1 Power dissipation Pd 410 mW Operating temperature range Topr 40 to +85 C Storage temperature range Tslg 55 to +125 C Junction temperature Tjmax 125 C *1: Reduced by 4.1 mW/C over 25C, when mounted on a glass epoxy board (70 mm 70 mm 1.6 mm) Recommended operating ranges (not to exceed Pd) Parameter Symbol Ratings Unit Power supply voltage VIN 1.7 to 5.5 V Output MAX current IMAX 0 to 150 mA Recommended operating conditions Ratings Parameter Symbol Unit Conditions Min. Typ. Max. The use of ceramic capacitors is *2 Input capacitor CIN 0.33 0.47 F recommended. The use of ceramic capacitors is *2 Output capacitor CO 0.33 0.47 F recommended. *2: Make sure that the output capacitor value is not kept lower than this specified level across a variety of temperature, DC bias characteristic. And also make sure that the capacitor value can not change as time progresses. www.rohm.com 2011.01 - Rev.B 2/10 2011 ROHM Co., Ltd. All rights reserved.