TS9004 300mA CMOS LDO Adjustable Voltage with Enable & Power Good Pin assignment 1. Input 6. Output 2. Ground 5. Feedback 3. Enable 4. Power Good Low Drop Out Voltage 0.4V Adjustable Voltage Enable Shutdown Power Good General Description The TS9004 is a positive voltage linear regulator developed utilizing CMOS technology featured low quiescent current (30uA typ.), low dropout voltage, and high output voltage accuracy, making them ideal for battery applications. The Chip Enable (CE) includes a CMOS or TTL compatible input allows the output to be turned off to prolong battery life. The TS9004 is included a precision voltage reference, current fold-back, error correction circuit, a current limited output driver, over temperature shutdown, and a “Power Good” detector, which pulls low when the output is out of regulation. This series are offered in 6-pin SOT-26 package. Features Applications Dropout voltage typically 0.4V@Io=300mA (Vo>2.5V) Palmtops Low power consumption: 30uA (typ.) Video recorders Output voltage +/-2.5% Battery powered equipment Internal current limit and thermal shutdown PC peripherals Short circuit current fold-back High-efficiency linear power supplies Power saving shutdown mode Digital signal camera Power good output function Adjustable output vlotage Typical Application Circuit Ordering Information Part No. TS9004 TS9004CX6 Operating Temp. (Ambient) -40 ~ +85 oC Block Diagram TS9004 1-1 2003/12 rev. B Package SOT-26 Absolute Maximum Rating Input Supply Voltage Vin +7 V Enable Input Voltage Vce Gnd-0.3 ~ Vin+0.3 V Output Current Io Pd / (Vin – Vout) Power Dissipation PD Internal Limited (note) Thermal Resistance Өja 260 Operating Ambient Temperature Range Ta -40 ~ +85 o C Tj -40 ~ +125 o C TSTG -65 ~ +150 o C Operating Junction Temperature Range Storage Temperature Range Lead Soldering Temperature (260 oC) ESD Classification o C/W 10 S 2k V HBM Caution: Stress above the listed absolute rating may cause permanent damage to the device. Note: Pd(max) = [Tj(max) – Ta] / Өja, where Өja depends on the printed circuit layout Electrical Characteristics (Ta = 25 oC, Vin= Vin(min), Vce≥2V, unless otherwise specified.) Parameter Conditions Input Voltage Bandgap Reference Voo= VBG, Io= 10mA Vout Temperature Coefficient Min Typ Max Unit Note 1 -- 7 V 0.99|Vo| 1.176 1.01|Vo| V -- 25 -- ppm/ oC 300 -- -- mA Maximum Output Current Vin=Vo+1V, Output Current Limit Vout=0V -- 800 -- mA Short Circuit Current (note 3) Vout< 0.8V -- 150 -- mA Line Regulation Vo+1V ≤Vin≤ Vo+2V, Vout≥2.0V -- -- 0.3 % Io= 1mA Vout<2.0V -- -- 0.1 -- 0.2 1.0 Load Regulation 1mA≤IL≤300mA Dropout Voltage Io=300mA, Vout≥2.0V -- 300 400 Vout=Vo - 2% Vout<2.0V -- 800 1300 mV % Quiescent Current Vin≤0.4V (shutdown) -- 2 -- uA Quiescent Current Vout≥0.4V, Io=0mA -- 30 35 uA Ground Pin Current Io= 1mA ~ 300mA -- 30 35 uA Power Supply Rejection Ratio Io=100mA, At f=1kHz, -- 60 -- dB At f=10kHz, -- 50 -- -- 150 -- -- 30 -- Over Temperature Shutdown Output Noise Io=10mA, f=10Hz~100kHz, Co=2.2uF o C uVrms Enable Input Enable Input Logic-High Voltage Vin= 2.7V to 7V -- Vin/2+0.8V Vin V Enable Input Logic-Low Voltage Vin= 2.7V to 7V 0 Vin/2-0.8V -- V Enable Input Current Ven≤ 0.4V -- -- 3 uA Ven= Vin -- -- 0.1 TS9004 2-2 2003/12 rev. B Electrical Characteristics (Ta = 25 oC, Vin= Vin(min), Vce≥2V, unless otherwise specified.) Power Good PG Low Threshold % of Vo (PG ON) 89.5 -- 85 PG High Threshold % of Vo (PG OFF) -- -- 96.5 PG leakage current VPG = 7V -- -- 1 uA PG voltage rating Vo in regulation -- -- 7 V PG voltage low Isink = 0.4mA -- -- 0.4 V Delay Time to PG (note 2) Vin= 5V -- 8 -- mS Vin= 3V -- 4 -- % Note 1: Vin(min) = Vout + Vdropout Note 2: Guaranteed by design, not 100% tested. Note 3: Short circuit current and current limit value will be increased as input voltage is larger than Vin(min) Detail Description Description The TS9004 series of CMOS regulators contain a P-MOS pass transistor, voltage reference, error amplifier, over current protection, thermal shutdown and power good function. The TS9004 series switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over stress. The TS9004 also incorporates current fold-back to reduce power dissipation when the output is short circuit. 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. The internal 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 o exceeds 150 C, or the current exceeds 300mA. During thermal shutdown, the output voltage remains low. Normal o operation is restored when the junction temperature drops below 120 C. Enable The Chip Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shut off, and all internal circuits are powered down. In this state, the quiescent current is less than 1uA. This pin behaves much like an electronic switch. External Capacitor The TS9004 series is stable with an output capacitor to ground of 2.2uF 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 0.1uF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A “quiet” ground termination is desirable. Power Good The TS9002 includes the Power Good feature. When the output is not within = +/-15% of the specified voltage, it pulls low. This can occur on other condition: – Input voltage too low – Temperature during over – Current during over TS9004 3-3 2003/12 rev. B Typical Electrical Characteristics TS9004 4-4 2003/12 rev. B SOT-26 Mechanical Drawing DIM A B C D E F H L TS9004 5-5 SOT-26 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 2.70 3.00 0.106 0.118 0.25 0.50 0.010 0.020 1.90(typ) 0.075(typ) 0.95(typ) 0.037(typ) 1.50 1.70 0.059 0.067 1.05 1.35 0.041 0.053 2.60 3.00 0.102 0.118 0.60(typ) 0.024(typ) 2003/12 rev. B