CM2835 CHAMP | Alldatasheet

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2006/10/11 Rev1.4 Champion Microelectronic Corporation Page 1 GENERAL DESCRIPTION

FEATURES

The CM2835 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, making them ideal for battery applications. EN input connected to CMOS has low bias current. The space-saving SOT-23 and SOT-89 package is attractive for “Pocket” and “Hand Held” applications. These rugged devices have both Thermal Shutdown, and Current limit to prevent device failure under the “Worst” of operating conditions. The CM2835 is stable with a Low ESR output capacitance of 1.0μF or greater. ‹ Very Low Dropout Voltage ‹ Low Current Consumption: Typ. 30μA, Max. 35μA ‹ Output Voltage: 1.8V, 2.5V, 3.0V, and 3.3V ‹ High Accuracy Output Voltage: +/- 1.5% ‹ Guaranteed 300mA Output ‹ Input Range up to 7.0V ‹ Thermal Shutdown ‹ Current Limiting ‹ Stability with Low ESR Capacitors ‹ Compact Package: SOT-23, SOT-89 ‹ Factory Pre-set Output Voltages ‹ Low Temperature Coefficient

APPLICATIONS

‹ Battery-powered devices ‹ Personal communication devices ‹ Home electric/electronic appliances ‹ PC peripherals TYPICAL APPLICATIONS CM2835 IN OUT GND IN OUT 1uF 1.0uF

2006/10/11 Rev1.4 Champion Microelectronic Corporation Page 2 PIN CONFIGURATION SOT-23 Top View GND VOUT VIN SOT-89 Top View GND VIN VOUT BLOCK DIAGRAM Overcurrent Shutdown Thermal Shutdown IN OUT GND Vref = 1.176V AMP

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ORDERING INFORMATION

Part Number Output Voltage Temperature Range Package CM2835DIM23 1.8V -40℃ ~ +85 ℃ SOT-23 CM2835DIM89 1.8V -40℃ ~ +85 ℃ SOT-89 CM2835KIM23 2.5V -40℃ ~ +85 ℃ SOT-23 CM2835KIM89 2.5V -40℃ ~ +85 ℃ SOT-89 CM2835PIM23 3.0V -40℃ ~ +85 ℃ SOT-23 CM2835PIM89 3.0V -40℃ ~ +85 ℃ SOT-89 CM2835SIM23 3.3V -40℃ ~ +85 ℃ SOT-23 CM2835SIM89 3.3V -40℃ ~ +85 ℃ SOT-89 CM2835GDIM23 1.8V -40℃ ~ +85 ℃ SOT-23 CM2835GDIM89 1.8V -40℃ ~ +85 ℃ SOT-89 CM2835GKIM23 2.5V -40℃ ~ +85 ℃ SOT-23 CM2835GKIM89 2.5V -40℃ ~ +85 ℃ SOT-89 CM2835GNIM23 2.8V -40℃ ~ +85 ℃ SOT-23 CM2835GNIM89 2.8V -40℃ ~ +85 ℃ SOT-89 CM2835GPIM23 3.0V -40℃ ~ +85 ℃ SOT-23 CM2835GPIM89 3.0V -40℃ ~ +85 ℃ SOT-89 CM2835GSIM23 3.3V -40℃ ~ +85 ℃ SOT-23 CM2835GSIM89 3.3V -40℃ ~ +85 ℃ SOT-89 Note: For other pre-set output voltage requirements, please contact Champion Sales office. 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-23 170 Thermal Resistance (Θjc) SOT-89 100 ℃/W SOT-23 330 Thermal Resistance (Θja) SOT-89 300 ℃/W SOT-23 225 Internal Power Dissipation (PD) (ΔT = 100℃) SOT-89 400 mW 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.

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ELECTRICAL CHARACTERISTICS

TA = +25℃; unless otherwise noted CM2835 Parameter Symbol Test Conditions Min. Typ. Max. Unit Input Voltage VIN Note 1 7 V Output Voltage Accuracy VOUT IO = 1mA to 300mA -1.5 1.5 % 1.2V<VO(NOM) ≤2.0V 1300 2.0V<VO(NOM) ≤2.5V 400Dropout Voltage VDROPOUT IO = 300mA, VOUT=VO(NOM)-1.5%, 2.5V<VO(NOM) 300 mV Output Current IO VOUT > 1.2V 300 mA Current Limit ILIM VOUT > 1.2V 300 450 mA Quiescent Current IQ IO = 0mA 30 35 μA Ground Pin Current IGND IO = 1mA to 300mA 30 50 μA Line Regulation REGLINE IOUT=5mA, VIN=VOUT+1 to VOUT+2 -0.1 0.02 0.1 % Load Regulation REGLOAD IO=1mA to 300mA 0.2 1 % Over Temperature Shutdown OTS 150 ℃ Over Temperature Hysteresis OTH 30 ℃ VOUT Temperature Coefficient TC 40 ppm/℃ f=1kHz 60 f=10kHz 50 Power Supply Rejection PSRR IO = 100mA CO=2.2μF ceramic f=100kHz 40 dB f=1kHz 75 f=10kHz 55 Power Supply Rejection PSRR IO = 100mA CO=2.2μF ceramic CBYP=0.01μF f=100kHz 30 dB CO=2.2μF 30 Output Voltage Noise eN f=10Hz to 100kHz IO = 10mA, CBYP=0μF CO=100μF 20 μVrms CO=2.2μF 30 Output Voltage Noise eN f=10Hz to 100kHz IO = 10mA, CBYP=0.01μF CO=100μF 20 μVrms Note 1. VIN(MIN) = VOUT + VDROPOUT

2006/10/11 Rev1.4 Champion Microelectronic Corporation Page 5 DETAILED DESCRIPTION The CM2835 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown. The P-channel pass transistor receives data from the error amplifier, over-current 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 300mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120℃. The CM2835 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. EXTERNAL CAPACITOR The CM2835 is stable with a Low ESR output capacitor to ground of 1.0μF or greater. It can keep stable even with higher 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 CHARACTERISTICS

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2006/10/11 Rev1.4 Champion Microelectronic Corporation Page 7 PACKAGE DIMENSION SOT-23 (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

2006/10/11 Rev1.4 Champion Microelectronic Corporation Page 8 NUMBERING SCHEME note1: CM2835: 300mA CMOS LDO with enable X : Suffix for voltage output (note 3) Y : Suffix for Temperature Range (note 4) Z : Suffix for Package Type (note 5) note2: CM2835: 300mA CMOS LDO with enable G : Suffix for Pb Free Product X : Suffix for voltage output (note 3) Y : Suffix for Temperature Range (note 4) Z : Suffix for Package Type (note 5) note 3: see CMOS LDO Voltage Suffix Table CM2835 will provide options of D(1.8V), K(2.5V), P(3.0V), S(3.3V) note 4: Y= I : -40℃~+85℃ (only I grade support for all CMOS LDOs) note 5: Z is single alphabet with or without digits M23 : SOT-23 (TR only) 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 Rev1.4 Champion 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