BM9168 BOOKLY | Alldatasheet

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BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 versi on1.1 www.bookly.com Page 1 GENERAL DESCRIPTION

FEATURES

The BM9168 family is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (10uA typ.), low dropout voltage, and high output voltage accuracy. Built-in low on-resistance transistor provides low dropout voltage and large output current. A 1.0µF or greater can be used as an output capacitor. The SOT-23-3 miniaturized package are recommended for configuring portable devices and large current application, respectively. These robust devices are designed to prevent device failure under the worst operation condition with both Thermal Shutdown and Current Fold-back. ‹ Very Low Dropout Voltage ‹ Low Current Consumption: Typ. <20uA ‹ High Accuracy Output Voltage: +/- 1.5% ‹ Guaranteed >250mA Output ‹ Input Range of 1.8V to 7.0V ‹ Thermal Shutdown ‹ High PSRR to 55dB ‹ Compact Package: SOT-23-3, SOT-89 ‹ Factory Pre-set Output Voltages ‹ Short Circuit Current Fold-Back ‹ Low Temperature Coefficient

APPLICATIONS

‹ Battery-powered devices , like DSC , MP3 , MP4 portable DVD , PHS , Wirless- Lan ‹ Personal communication devices ‹ Home electric/electronic appliances ‹ PC peripherals ( PC card) , Hard-disc Pin define 2 1 23 SOT23-3 SOT89 p i n 1 = G N D , p i n 1 ＝GND p i n 2 = V o u t , p i n 2 = V i n P i n 3 = V i n , p i n 3 = V o u t

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 2 BLOCK DIAGRAM Overcurrent Shutdown Thermal Shutdown IN OUT GND Vref = 1.176V AMP

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 3

ORDERING INFORMATION

Part Number Output Voltage Temperature Range Package BM9168EIM23 1.5V -40 ℃ ~ +85 ℃ SOT-23-3 BM9168EIM89 1.5V -40 ℃ ~ +85 ℃ SOT-89 BM9168DIM23 1.8V -40 ℃ ~ +85 ℃ SOT-23-3 BM9168DIM89 1.8V -40 ℃ ~ +85 ℃ SOT-89 BM9168CIM23 2.5V -40℃ ~ +85 ℃ SOT-23-3 BM9168CIM89 2.5V -40℃ ~ +85 ℃ SOT-89 BM9168BIM23 2.8V -40℃ ~ +85 ℃ SOT-23-3 BM9168BIM89 2.8V -40℃ ~ +85 ℃ SOT-89 BM9168FIM23 3.0V -40℃ ~ +85 ℃ SOT-23-3 BM9168FIM89 3.0V -40℃ ~ +85 ℃ SOT-89 BM9168AIM23 3.3V -40℃ ~ +85 ℃ SOT-23-3 BM9168AIM89 3.3V -40℃ ~ +85 ℃ SOT-89

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 4 ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS Output Voltage …………………… GND-0.3V to V IN+0.3V Ambient Temperature Range (TA) ……... -40 ℃ to +85 ℃ THERMAL INFORMATION Parameter Maximum Unit SOT-23-3 110 ℃/W SOT-89 18 Thermal Resistance (Θjc) SOT-23-3 325 ℃/W SOT-89 180 Thermal Resistance (Θja) SOT-23-3 300 mW SOT-89 550 SOT-89 2750* Internal Power Dissipation (PD) (ΔT = 100℃) Maximum Junction Temperature 150 ℃ Maximum Lead Temperature (10 Sec) 300 ℃ *With Junction sink capable of twice times ofΘjc Caution: Stress above the listed absolute rating may cause permanent damage to the device.

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 5

ELECTRICAL CHARACTERISTICS

TA = +25℃; unless otherwise noted BM9168 Parameter Test Conditions Min. Typ. Max. Unit Input Voltage Note 1 7 V Output Voltage Accurancy Io = 1mA to 250mA -1.5 1.5 % Io=100mA, VOUT=VOUT-2.0%, VOUT>2.5V 150mV mV Dropout Voltage Io=100mA, VOUT=VOUT-2.0%, VOUT<=2.0V 210mV mV Output Current VOUT > 1.2V 250 mA Short Circuit Current VOUT < 1.05V 350 mA Current Limit VOUT>1.2V 2350 mA Quiescent Current VIN=5V, No Load 5 10 25 uA Ground Pin Current I = 1mA to 250mA 10 25 uA IOUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT <= 3.0V -0.15 0.03 0.15 Line Regulation IOUT=5mA, VIN=VOUT+1 to VOUT+2, VOUT > 3.0V -0.3 0.06 0.3 Load Regulation Io=1mA to 250mA 0.2 1 % f=1KHz 55 dB f=10KHz 51 Power Supply Rejection IO = 100mA CO=10µF ceramic f=100KHz 46 Over Temperature Shutdown 150 ℃ Over Temperature Hystersis 30 ℃ Output Noise F=10Hz to 100kHz, CO=10µF, IO = 10mA 30 μVrms Output Voltage Temp. Coeff. 25 ppm/ ℃ Note 1. VIN(MIN) = VOUT + 0.3V DETAILED DESCRIPTION The BM9168 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown, and short circuit protection. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, short output protection, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150℃, or the current exceeds 350mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120℃. The BM9168 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The BM9168 also incorporates current fold-back to reduce power dissipation when the output is short-circuited. This feature becomes active when the output drops below 1.05V, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 1.05V. EXTERNAL CAPACITOR The BM9168 is stable with an output capacitor to ground of 1µF. It can keep stable even with higher or poor ESR capacitors. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be larger than 0.1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable.

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 6 TYPICAL ELECTRICAL CHARACTERISTICS

BOOKLY MICRO 250mA CMOS LDO 2009/ 11/ 09 version1.1 www.bookly.com Page 7 PACKAGE DIMENSION SOT-23-3 (M23) L D E A b c θ e D E e b A b c Base Metal With Plating Section B-B See Section B-B L1 L θ SOT-89 (M89) e H E A b L C D D e EL H b b1 b C φ1.0