TS9008NCX5 TSC | Alldatasheet

Document overview

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Technical content

Features

  • Input voltage range 2.8V~5.5V
  • 250mV dropout at 300mA load
  • 300mA output Current
  • Low quiescent current 30µA (Typ.)
  • Max. supply current <1 µA at shutdown mode
  • Fixed output voltage
  • Current limit and thermal shutdown protection
  • High PSRR 73db @ 1kHz

Ordering Information

Note: “G” denote for Halogen Free Product Where x denotes voltage option, available are 1= 1.2V, A = 1.5V, D = 1.8V K = 2.5V N = 2.8V P= 3.0V S= 3.3V Part No. Package Packing TS9008 xCX RFG SOT-23 3Kpcs / 7” Reel TS9008 xCX5 RFG SOT-25 3Kpcs / 7” Reel

Applications

  • Palmtops, PDA and Notebook Computers
  • DSC, Handset Camera Modules
  • PCMCIA Cards, PC Cameras
  • USB Based Portable Devices (MPS, PMP)
  • GSM/GPRS/3G RF Transceiver Modules Block Diagram Current Limit - VIN VOUT GND Error Amp Bandgap Thermal Shutdown Enable BP EN Typical Application Circuit Pin Definition : 1. Input 2. Ground 3. Enable 4. Bypass 5. Output TS9008 Pin Definition : 1. Input 2. Output 3. Ground

300mA High PSRR Low Noise CMOS LDO 2/9 Version: D12 Absolute Maximum Rating Parameter Symbol Limit Unit VIN Pin Voltage VIN GND - 0.3 to GND + 6 V Output Voltage VOUT GND - 0.3 to VIN + 0.3 V Enable Voltage VEN GND - 0.3 to GND + 6 V Power Dissipation PD 350 mW Storage Temperature Range T STG -40 to +150 °C Operating Temperature Range T OP -40 to +85 °C Junction Temperature TJ -40 to +125 °C Thermal Resistance from Junction to case θJC 230 °C/W Thermal Resistance from Junction to ambient θJA 280 °C/W Note: θJA is measured with the PCB copper area of approximately 1 in 2 (Multi-layer).

Electrical Characteristics

(V IN =V OUT +1V or V IN =2.8V whichever is greater, C IN =C OUT =1uF, TA=25° C, unless otherwise noted) Characteristics Symbol Conditions Min Typ Max Units Input Voltage V IN (Note1) 2.8 -- 5.5 V Output Voltage Accuracy ∆VOUT I OUT =1mA -2 -- +2 % Quiescent Current I Q I OUT =0mA -- 30 60 µA Dropout Voltage (Note2) V DROP I OUT =300mA mV Current Limit I LIMIT R LOAD =1 Ω 300 -- -- mA Line Regulation ∆VLINE IOUT =1mA, VIN =V OUT +1V to 5V -- 1 5 mV Load Regulation (Note3) ∆VLOAD I OUT =0m~150mA -- 6 20 mV Ripple Rejection PSRR C OUT =1uF, IOUT =1mA F=1KHz -- 73 -- dB F=10K -- 60 -- Enable Input Threshold VENH 1.4 -- -- V VENL -- -- 0.4 Enable Pin Current I EH V EN =V IN -- -- 0.1 µA Shutdown Current I SD V IN =3.6V, V EN =0V -- -- 1 µA Temperature Coefficient T C I OUT =1mA, V IN =5V -- 50 -- ppm/° C Temperature Shutdown T S -- 160 -- ºC Temperature Shutdown Hysterisis T SH -- 25 -- ºC Note: 1. Minimum V IN voltage is defined by output adds a dropout voltage. 2. The dropout voltage is defined as V IN -VOUT , which is measured when V OUT drop about 100mV. 3. Regulation is measured at constant junction temperature by using pulsed testing with a low ON time.

300mA High PSRR Low Noise CMOS LDO 3/9 Version: D12 Function Description A minimum of 1uF capacitor must be connected from VOUT to ground to insure stability. Typically a large storage capacitor is connected from V IN to ground to ensure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be dropout voltage higher than V OUT in order for the device to regulate properly

Application Information

Like any low-dropout regulator, the TS9008 requires input and output decoupling capacitors. The device is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. Please note that linear regulators with a low dropout voltage have high internal loop gains which require care in guarding against oscillation caused by insufficient decoupling capacitance. Capacitor Selection Normally, use a 1µF capacitor on the input and a 1µF capacitor on the output of the TS9008. Larger input capacitor values and lower ESR provide better supply-noise rejection and transient response. A large value output capacitor may be necessary if large, fast transients are anticipated and the device is located several inches from the power source. The capacitors is recommended to use 1uF X5R or X7R dielectric ceramic capacitors with 30mΩ to 50m Ω ESR range between device outputs to ground for transient stability. Input-Output (Dropout) Voltage A regulator's minimum input-to-output voltage differential (dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this determines the useful end-of-life battery voltage. Because the device uses a PMOS, its dropout voltage is a function of drain-to source on-resistance, RDS (ON), multiplied by the load current: VDROPOUT = V IN -VOUT = R DS (ON) x I OUT Current limit and Thermal Shutdown Protection In order to prevent overloading or thermal condition from damaging the device, TS9008 regulator has internal thermal and current limiting functions designed to protect the device. It will rapidly shut off PMOS pass element during overloading or over temperature condition. Thermal Considerations The TS9008 series can deliver a current of up to 300mA over the full operating junction temperature range. However, the maximum output current must be dated at higher ambient temperature to ensure the junction temperature does not exceed 125° C. With all possible conditions, the junction temperature must be within the range specified under operating conditions. Power dissipation can be calculated based on the output current and the voltage drop across regulator. PD = (V IN - VOUT ) I OUT The final operating junction temperature for any set of conditions can be estimated by the following thermal equation: PD (MAX) = (T J(MAX) - TA) / θJA Where T J(MAX) is the maximum junction temperature of the die (125° C) and TA is the maximum ambient temperature. The junction to ambient thermal resistance (θJA ) for SOT-23-5L package at recommended minimum footprint is 250° C/W.

300mA High PSRR Low Noise CMOS LDO 4/9 Version: D12 PCB Layout An input capacitance 1µF is required between the TS9008 input pin and ground (the amount of the capacitance may be increased without limit), this capacitor must be located a distance of not more than 1cm from the input and return to a clean analog ground. Input capacitor can filter out the input voltage spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire. Otherwise, the actual voltage at the VIN pin may exceed the absolute maximum rating. The output capacitor also must be located a distance of not more than 1cm from output to a clean analog ground. Because it can filter out the output spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire.

300mA High PSRR Low Noise CMOS LDO 7/9 Version: D12 SOT-25 Mechanical Drawing SOT-25 DIMENSION DIM MILLIMETERS INCHES MIN MAX MIN MAX. A+A1 0.09 1.25 0.0354 0.0492 B 0.30 0.50 0.0118 0.0197 C 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 e 1.90 BSC 0.0748 BSC H 2.40 3.00 0.09449 0.1181 L 0.35 BSC 0.0138 BSC Ө1 0º 10º 0º 10º S1 0.95 BSC 0.0374 BSC

300mA High PSRR Low Noise CMOS LDO 8/9 Version: D12 SOT-23 Mechanical Drawing SOT-23 DIMENSION DIM MILLIMETERS INCHES MIN MAX MIN MAX. A 0.95 BSC 0.037 BSC A1 1.9 BSC 0.074 BSC B 2.60 3.00 0.102 0.118 C 1.40 1.70 0.055 0.067 D 2.80 3.10 0.110 0.122 E 1.00 1.30 0.039 0.051 F 0.00 0.10 0.000 0.004 G 0.35 0.50 0.014 0.020 H 0.10 0.20 0.004 0.008 I 0.30 0.60 0.012 0.024 J 5º 10º 5º 10º

300mA High PSRR Low Noise CMOS LDO 9/9 Version: D12 Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale.