CM2862 CHAMP | Alldatasheet
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Technical content
FEATURES
The CM2862 family is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (30μA typ.), low dropout voltage, and high output voltage accuracy. Built-in low on-resistance transistor provides low dropout voltage and large output current. A 2.2μF or greater can be used as an output capacitor. The SOT-89 packages are attractive for “Pocket” and “Hand Held” applications. 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. 30μA, Max. 35μA High Accuracy Output Voltage: +/- 1.5% Guaranteed 600mA Output Thermal Shutdown Current Limiting Compact Package: SOT-89 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 TYPICAL APPLICATIONS CM2862 IN OUT GND IN OUT VIN 1uF 2.2uF 2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 1
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 2 2862 Pin 1 VOUT Pin 2 GND Pin 3 VIN BLOCK DIAGRAM Overcurrent Shutdown Thermal Shutdown IN OUT GND Vref = 1.176V AMP
ORDERING INFORMATION
Part Number Output Voltage Temperature Range Package -40℃ ~ +85 ℃ CM2862KIM89 2.5V SOT-89 CM2862SIM89 3.3V -40℃ ~ +85 ℃ SOT-89 Note: For other pre-set output voltage, please contact Champion Sales office.
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 3 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 Thermal Resistance (Θjc) SOT-89 100 ℃/W Thermal Resistance (Θja) SOT-89 180 ℃/W Internal Power Dissipation (PD) (ΔT = 100℃, No Heatsink) SOT-89 400 mW Maximum Junction Temperature 150 ℃ Maximum Lead Temperature (10 Sec) 300 ℃
ELECTRICAL CHARACTERISTICS
TA = +25℃; VIN = VIN(MIN) unless otherwise noted CM2862 Parameter Symbol Test Conditions Min. Typ. Max. Unit Input Voltage VIN Note 1 7 V Output Voltage Accuracy VOUT IO = 1mA -1.5 1.5 % 1.5V<VO(NOM)<=2.0V 1000 2.0V<VO(NOM)<=2.8V 800 mV Dropout Voltage VDROPOUT IO = 600mA, VOUT=VO(NOM)-1.5%, 2.8V<VO(NOM)<3.8V 600 mV Output Current IO VOUT > 1.2V 600 mA Current Limit ILIM VOUT > 1.2V, VIN = VIN(MIN) 600 1000 mA Short Circuit Current ISC VOUT < 0.8V 250 mA Quiescent Current IQ IO = 0mA 30 50 μA Ground Pin Current IGND IO = 1mA to 600mA 30 50 μA VOUT <= 2.0V 0.15 % Line Regulation REGLINE IOUT=5mA, VIN=VOUT+1 to VOUT+2 VOUT > 2.0V 0.02 0.1 % Load Regulation REGLOAD IO=1mA to 600mA 0.2 1 % Over Temperature Shutdown OTS 150 ℃ Over Temperature Hystersis OTH 30 ℃ VOUT Temperature Coefficient TC 30 ppm/℃ f=1kHz 50 f=10kHz 20 Power Supply Rejection PSRR IO = 100mA CO=2.2μF ceramic f=100kHz 15 dB CO=2.2μF 30 Output Voltage Noise eN f=10Hz to 100kHz IO = 10mA, CVBG=0μF CO=100μF 20 μVrms Note 1. VIN(MIN) = VOUT + VDROPOUT Note 2. As VIN is larger than VIN(MIN), the Current Limit and output short current Spec value will increase
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 4 DETAILED DESCRIPTION The CM2862 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 600mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120℃. The CM2862 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The CM2862 also incorporates current fold-back to reduce power dissipation when the output is short-circuited. This feature becomes active when the output drops below 0.8V, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8V. EXTERNAL CAPACITOR The CM2862 is stable with an output capacitor to ground of 2.2μF or greater. 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.
TYPICAL ELECTRICAL CHARACTERISTICS 2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 5
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 6
SOT-89 (M89) e H E A b L C D D e EL H b b1 b C φ1.0 A 2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 7
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 8 NUMBERING SCHEME note1: CM2862: 600mA CMOS LDO X : Suffix for voltage output (note 2) Y : Suffix for Temperature Range (note 3) Z : Suffix for Package Type (note 4) note 2: see CMOS LDO Voltage Suffix Table note 3: Y= I : -40℃~+85℃ (only I grade support for all CMOS LDOs) note 4: Z is single alphabet with or without digits M89 : SOT-89 (TR only) CMOS LDO Voltage Suffix Table Output Voltage Suffix Output Voltage Suffix 1.5V A 3.0V P 1.6V B 3.1V Q 1.7V C 3.2V R 1.8V D 3.3V S 1.9V E 3.4V T 2.0V F 3.5V U 2.1V G 3.6V V 2.2V H 3.7V W 2.3V I 3.8V X 2.4V J 3.9V Y 2.5V K 4.0V Z 2.6V L 2.7V M 2.8V N 2.9V O
2006/10/11 Rev. 1.1 Champi on Microelectronic Corporation Page 9 IMPORTANT NOTICE Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involv e potential risks of death, personal injury, or severe property or environmental damage. CMC integrated circ uit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of CMC products in such applications is understood to be fully at the risk of the cust omer. In order to minimize risks associated with the customer’s applications, th e customer should provide adequate design and operating safeguards. HsinChu Headquarter Sales & Marketing 5F, No. 11, Park Avenue II, Science-Based Industrial Park, HsinChu City, Taiwan 7F-6, No.32, Sec. 1, Chenggong Rd., Nangang District, Taipei City 115, Taiwan T E L : +886-3-567 9979 T E L :+886-2-2788 0558 FAX: +886-3-567 9909 FAX: +886-2-2788 2985