HE9116A33NR

HE9116 Synchronous Step-Up DC-DC Converter with PFM Control Features  External parts: Coil, capacitor  Output voltage: Settable to between  Accuracy of ±2% 2.1V to 5.5V in 0.1V steps  High efficiency :95% Maximum Oscillation  Package: SOT23 and TO92  Digital cameras  Cameras , video equipment  Electronic notebooks and PDAS  Communications equipment  Portable CD/MD players  Power supply for microcomputers  frequency :300KHz Applications General Description The HE9116 Series is a Synchronous an external coil, capacitor. The built-in step-up DC/DC Converter with PFM Control. MOSFET is turned off by a protection circuit With the HE Series, a step-up switching DC/ when the voltage at the LX pin exceeds the DC converter can be configured by using limit to prevent it from being damaged. Block Diagram Order Information HE9116①②③④⑤ Designator 1 ②③ ④ ⑤ Ver1.4 Symbol A B Integer N T R G Description Standard Another pin definition Output Voltage (2.1~5.5) e.g:3.0V=②：3；③：0 Package:SOT23 Package:TO-92 RoHS / Pb Free Halogen Free Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control Pin Assignment Table1 HE9116A series (SOT23 PKG) PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 LX External inductor connection pin Table2 HE9116A series (TO92 PKG) PIN NO. PIN NAME FUNCTION 1 GND GND pin 2 VOUT Output voltage pin 3 LX External inductor connection pin Table3 HE9116B series (TO92PKG) Ver1.4 PIN NO. PIN NAME FUNCTION 1 VOUT Output voltage pin 2 GND GND pin 3 LX External inductor connection pin Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control Absolute Maximum Ratings (Unless otherwise specified, Ta=25℃) PARAMETER SYMBOL RATINGS UNITS VOUT Pin Voltage VOUT VSS-0.3~VSS+8 V EN Pin Voltage EN VSS-0.3~VSS+8 V LX Pin Voltage VLX VSS-0.3~VSS+8 V LX Pin Current ILX 500 mA 250 mW 250 mW 500 mW 500 mW SOT23 Power SOT23-3/SOT23-5 Dissipation SOT-89-3 PD TO-92 Operating Temperature TOPR -40~+85 ℃ Storage Temperature TSTG -40~+125 ℃ Soldering Temperature & Time TSOLDER 260℃，10s Note: These are stress ratings only. Stresses exceeding the range specified under “Absolute Maximum Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics (Unless otherwise specified，Ta = 25℃) PARAMETER SYMBOL Output Voltage VOUT Input Voltage VIN - - Operation Start Voltage VST1 - Input Current At No Load ISS1 Current Consumption 2 Current Consumption During Shutdown Maximum Oscillation Frequency MIN UNITS CONDITION V - 7.5 V - - 0.9 V IOUT=1mA - 15 - uA VIN=1.8V, VOUT=3.0V ISS2 - 6 10 uA VOUT=VOUT(s)+0.5V ISSS - - 1.0 uA VEN=0V VOUT(S) X0.98 fosc Duty Ratio1 Duty1 Efficiency EFF1 TYP VOUT MAX VOUT(S) X1.02 300 70 78 KHz 85 90 % VOUT=0.95xVOUT(s), measure Waveform at LX pin VOUT=0.95xVOUT(s) % VOUT=0.95xVOUT(s), judge VSH 0.75 - - V VSL - - 0.3 V Shutdown Pin input ISH -0.1 - 0.1 uA VEN=6V Current ISL -0.1 - 0.1 uA VEN=0V Shutdown Pin Input Voltage Oscillation at LX pin VOUT=0.95xVOUT(s), judge stop at LX pin Remark: VOUT(S) specified above is the set output voltage value,and VOUT is the typical value of the actual output voltage Ver1.4 Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control Application Circuits Note:External Component Recommendation: 1) L=47uH(Sumida) 2) C=100uF/16V(Tantalum) Ver1.4 Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control TYPICAL PERFORMANCE CHARACTERISTICS (Cin=Cout=100uF,L=47uH) Ver1.4 Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control Package Information 3-pin SOT23 Outline Dimensions Ver1.4 Oct 22,2015 HE9116 Synchronous Step-Up DC-DC Converter with PFM Control 3-pin TO92 Outline Dimensions Ver1.4 Oct 22,2015