BM9164 BOOKLY | Alldatasheet

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Technical content

www.bookly.com Page 1 GENERAL DESCRIPTION

FEATURES

The BM9164 family of a linear voltage linear regulators developed utilizing BM unique BiCMOS technology featured low quiescent current (90uA), low dropout voltage, high output voltage accuracy. The space-efficient SOT223, TO252 package is attractive for “Pocket” and “Hand Held” applications. Output voltages are set at the factory and trimmed to 1.5% accuracy. Voltages from 3.3V to 5.0V are available. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the “Worst” of operating conditions. The BM9164 is stable with an output capacitance of 10µF or greater. ‹ Very Low Dropout Voltage , <400mV when 0.8A Low Current Consumption: Typ. 90uA ‹ High Accuracy Output Voltage: +/- 1.5% ‹ Guaranteed 0.8A (if Vin-Vout<1700mV in SOT223) ‹ Output up to 0.3A if down 12V to +5V in SOT223 ‹ Output up to 0.5A if down 12V to +5V in TO252 ‹ Compact Package: SOT-223 and TO252 ‹ Factory Pre-set Output Voltages ‹ Short Circuit Current Fold-Back ‹ Low Temperature Coefficient

APPLICATIONS

‹ Battery-powered devices ‹ Personal communication devices ‹ Home electric/electronic appliances ‹ PC peripherals , hard-disk PIN CONFIGURATION SOT-223 and TO252-2 Top View 1 23 VIN GND VOUT

3 VOUT

1 VIN

2 GND TAB IS

www.bookly.com Page 2 BLOCK DIAGRAM Overcurrent Shutdown Thermal Shutdown IN OUT GND Vref = 1.215V AMP

ORDERING INFORMATION

Part Number Output Voltage Temperature Range Package BM9164-5.0 5.0V -20℃ ~ +85 SOT223 SOT-223 BM9164-3.3 3.3V -20℃ ~ +85 SOT-223 BM9164A-5.0 5.0V -20℃ ~ +85 ℃ TO252

www.bookly.com Page 3 ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS IN +0.3V Ambient Temperature Range (T A THERMAL INFORMATION Parameter Maximum Unit Thermal Resistance (Θ jc ) SOT-223 160 ℃/W Internal Power Dissipation (P D (ΔT = 100℃) SOT-223 625 mW Maximum Junction Temperature 150 ℃ Maximum Lead Temperature (10 Sec) 300 ℃ *With Junction sink capable of twice times ofΘ jc Caution: Stress above the listed absolute rating may cause permanent damage to the device. 47 47

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ELECTRICAL CHARACTERISTICS

T A = +25℃; unless otherwise noted BM9164 Parameter Symbol Test Conditions Min. Typ. Max. Unit Input Voltage V IN +2 +18 V Output Voltage Accuracy V OUT I O = 1mA to 1.5A -1.5 1.5 % Iout=0.8A xxxxx400 Iout=600mA 300 mV Dropout Voltage V DROPOUT V OUT O(NOM) -4%, Iout=100mA 200 mV Output Current I O V OUT > 1.5V 800 mA Current Limit I LIM V OUT > 1.5V 1200 mA Short Circuit Current I SC V OUT < 0.4V 750 1 200 mA Quiescent Current I Q I O = 0mA 90 uA Ground Pin Current I GND I O = 1mA to 1A 90 uA V OUT <= 4.0V 1.5 % Line Regulation REG LINE I OUT =5mA V OUT > 4.0V 2 % Load Regulation REG LOAD I O Over Temperature Shutdown OTS 150 ℃ Over Temperature Hystersis OTH 30 ℃ V OUT Temperature Coefficient TC 30 ppm/ ℃ f=1kHz 7 2 f=10kHz 60 Power Supply Reject PSRR I O = 100mA C O =22µF ceramic f=100kHz 4 5 dB C O =22µF 30 Output Voltage Noise eN f=10Hz to 100kHz I O = 10mA C O =47µF 20 μVrms Note 1. V IN(MIN) = V OUT + V DROPOUT

www.bookly.com Page 5 DETAILED DESCRIPTION The BM9164 family of BiCMOS regulators contain a 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 1.2A. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120 The BM9164 behaves like a current source when the load reaches 1.2A. However, if the load impedance drops below 0.3Ω, the current drops back to 600mA to prevent excessive power dissipation. Normal operation is restored when the load resistance exceeds 0.75Ω. EXTERNAL CAPACITOR The BM9164 is stable with an output capacitor to ground of 22µF or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1µF ceramic capacitor with a 22µF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize VIN. The input capacitor should be larger than 22µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable. 锂电降压式大电流充电典型电路

BOOKLY MICRO 1 A B i C M O S L D O www.bookly.com Page 6 TYPICAL ELECTRICAL CHARACTERISTICS Minimum Operating Current Short-Circuit Current Load Regulation Ripple Rejection vs. Current Temperature Stability GND Pin Current

BOOKLY MICRO 1 A B i C M O S L D O www.bookly.com Page 7 PACKAGE DIMENSION SOT-223 (M223) θ H L A B D E e e EL1 B B H D A L TO252-2 (DPAK)