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| NJU7262 Series C-MOS STEP-UP SWITCHING REGULATOR GENERAL DESCRIPTION The NJU7262 series is a C-MOS step-up switching regulator which contains accurate voltage reference, error amplifier, CR oscillator, control circuit, switching transistor, diode and resistor. The operating clock is prepared on-chip or is available to input from external, and the stand-by function is effective for low power consumption. The regulation voltage is fixed by internal circuits and the following line-up of different output voltages version are available. This series is suitable for portable equipment's or battery operated items because of its small packaged outline, low operating voltage and current. FEATURES * Low Operating Voltage (1.0V min.) * Low Operating Current (5.0A typ. / VOUT = 3.0V) * Low Stand-by Current (0.2A max. / VOUT = 3.0V) * High Precision Output Voltage (3% max.) * Wide Operating Voltage Range * External/Internal Clock Select Function * Stand-by Function * CR Oscillator On-chip * Diode On-chip * Package Outline DMP-8/SSOP-8/VSP-8 * C-MOS Technology LINE-UP Output Voltage (V) 3.0 5.0 Package DMP-8 NJU7262M30 NJU7262M50 SSOP-8 NJU7262V30 NJU7262V50 VSP-8 NJU7262R30 NJU7262R50 PACKAGE OUTLINE PRELIMINARY NJU7262MXX NJU7262VXX NJU7262RXX PIN CONFIGURATION EQUIVALENT CIRCUIT TERMINAL DESCRIPTION No. Term. Name 1 2 3 4 5 6 CONT GND NC STB VIN SW I/O I POWER I POWER I FUNCTION External Inductor Connect Terminal Power Source (GND) Non Connect Strobe Terminal : "H" or OPEN ***Normal Operation (step-up) "L" ***Standp-By Operation Power Source (+) External / Internal "H" or OPEN***Internal Oscillation Clock Select Terminal "L" ***External Clock Input (When "L" level is input, Internal oscillation is stopped) External Clock Input Terminal Step-up Output Terminal 7 8 CLK VOUT I O Ver.2003-07-18 -1- NJU7262 Series ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage CONT Input Voltage STB, SW, CLK Input Voltage Output Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL VIN VCONT VI VOUT PD Topr Tstg RATINGS 10 GND-0.3 VCONT 10 GND-0.3 VI VIN GND-0.3 VOUT 10 (DMP-8) 300 (SSOP-8) 250 (VSP-8) 320 -25 to + 75 -40 to +125 (Ta = 25C) UNIT V V V V mW C C Note) Decoupling capacitor should be connected between VDD and VSS due to the stabilized operation for the voltage converter. ELECTRICAL CHARACTERISTICS +3V Version PARAMETER Input Voltage Start Voltage Oscillator Freq. Output Voltage Input Stability Load Stability Operating Current Stand-by Current Switching Current STB Terminal Input Voltage SW Terminal Input Voltage CLK Terminal Input Voltage H level L level H level L level H level L level H level L level H level L level H level L level SYMBOL VIN VSTART fOSC VOUT VOUT1 VOUT2 ISS IQ ISI VSTBH VSTBL VSWH VSWL VCLKH VCLKL ISTBH1 ISTBH2 ISTBL1 ISTBL2 ISWH ISWL ICLKH ICLKL NO LOAD VIN = 1.5V VIN = 1.5V, IOUT = 20mA VIN = 1.5V to 2.0V IOUT = 20mA VIN = 1.5V IOUT = 10A to 25mA VIN = VSTB = 1.5V, NO LOAD VIN = Vsw = 1.5V VSTB = VCLK = 0V, NO LOAD VDS = 0.2V VIN = 1.5V VIN = 1.5V VIN = 1.5V VIN = 1.5V VIN = 1.5V VIN = 1.5V VIN = 1.5V, VSTB = 1.0V VIN = 1.5V, VSTB = 1.5V VIN = 1.5V, VSTB = 0.4V VIN = 1.5V, VSTB = 0V VIN = 1.5V, VSW = VIN VIN = 1.5V, VSW = 0V VIN = 1.5V, VCLK = VIN VIN = 1.5V, VCLK = 0V CONDITION NORM MIN. 20 2.91 1.0 1.0 1.0 TYP. 30 3.0 30 30 5.0 250 15 0.1 15 0.1 0.1 10 10 0.1 MAX. 5.0 1.0 50 3.09 100 100 10 0.2 0.4 0.4 0.4 30 30 30 30 UNIT V V kHz V mV mV A A mA V V V V V V A A A A A A A A (Ta = 25C) MEASUREMENT CIRCUIT 1 1 2 1 1 1 3 4 5 5 6 6 7 7 8 8 8 8 8 8 8 8 STB Terminal Input Current SW Terminal Input Current CLK Terminal Input Current -2- Ver.2003-07-18 NJU7262 Series +5V Version PARAMETER Input Voltage Start Voltage Oscillator Freq. Output Voltage Input Stability Load Stability Operating Current Stand-by Current Switching Current STB Terminal Input Voltage SW Terminal Input Voltage CLK Terminal Input Voltage H level L level H level L level H level L level H level L level H level L level H level L level SYMBOL VIN VSTART fOSC VOUT VOUT1 VOUT2 ISS IQ ISI VSTBH VSTBL VSWH VSWL VCLKH VCLKL ISTBH1 ISTBH2 ISTBL1 ISTBL2 ISWH ISWL ICLKH ICLKL NO LOAD VIN = 3.0V VIN = 3.0V, IOUT = 20mA VIN = 2.0V to 3.0V IOUT = 20mA VIN = 3.0V IOUT = 10A to 25mA VIN = VSTB = 3.0V, NO LOAD VIN = VSW = 3.0V VSTB = VCLK = 0V, NO LOAD VDS = 0.2V VIN = 3.0V VIN = 3.0V VIN = 3.0V VIN = 3.0V VIN = 3.0V VIN = 3.0V VIN = 3.0V, VSTB = 2.4V VIN = 3.0V, VSTB = 3.0V VIN = 3.0V, VSTB = 0.4V VIN = 3.0V, VSTB = 0V VIN = 3.0V, VSW = VIN VIN = 3.0V, VSW = 0V VIN = 3.0V, VCLK = VIN VIN = 3.0V, VCLK = 0V CONDITION NORM MIN. 20 4.85 2.4 2.4 2.4 TYP. 30 5.0 30 30 5 250 50 0.1 50 0.1 0.1 10 10 0.1 MAX. 5.0 1.0 50 5.15 100 100 15 0.2 0.4 0.4 0.4 100 100 30 30 UNIT V V kHz V mV mV A A mA V V V V V V A A A A A A A A (Ta = 25C) MEASUREMENT CIRCUIT 1 1 2 1 1 1 3 4 5 5 6 6 7 7 8 8 8 8 8 8 8 8 STB Terminal Input Current SW Terminal Input Current CLK Terminal Input Current Ver.2003-07-18 -3- NJU7262 Series MEASUREMENT CIRCUIT (1) External Diode Type : "D1NS4" provided by SHINDENGEN (IF = 1A, VF = 0.55V) (2) (3) ISS = I1 + l2 x VOUT VOUT + 1 -4- Ver.2003-07-18 NJU7262 Series (4) (5) (6) Ver.2003-07-18 -5- NJU7262 Series (7) (8) APPLICATION CIRCUIT [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -6- Ver.2003-07-18 |
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