POWER&RF Positive LDO regulator IC IC TK111xxCS-G,TK11100CS-G,TK121xxCS-G DESCRIPTION The TK111xxCS-G, TK11100CS-G and TK121xxCS-G are low dropout linear regulators with on/off control, which can supply 200mA load current. The output voltage, trimmed with high accuracy, is available from 1.5 to 10.0V in 0.1V steps. The on/off control of the TK121xxCS-G is low threshold type of the TK111xxCS-G. And the TK11100CS-G output voltage, adjustable by external resistors, is available from 1.3 to 13.0V. TK111xxCS-GTK11100CS-G, TK121xxCS-G 200mAon/off IC 1.5V~10.0V 0.1V TK121xxCS-GTK111xxCS-Gon/off TK11100CS-G 1.3V~13.0V FEATURES High Precision Output Voltage of 1.5% or 50mV Adjustable Output Voltage by External Resistors (TK11100CS) Superior Phase Compensation to Previous Model Very Good Stability: Ceramic capacitor can be used. Very Low Dropout Voltage: VDROP=80mV at IOUT=50mA Active High On/off Control Excellent Ripple Rejection Ratio: -80dB at 1kHz Very Low Noise with Noise Pass Pin Short Circuit Protection (Over Current Protection) Thermal Shutdown (Over Heat Protection) Reverse Bias Protection : 1.5% or 50mV (TK11100CS) : : VDROP=80mV at IOUT=50mA on/off: High-On : -80dB at 1kHz () () APPLICATIONS Battery Powered Systems Mobile Communication Systems: Cordless Phone, GSM, PHS, PDC, CDMA, Base Station of Mobile Phones etc. Industrial Equipment: Personal Computer, Barcode Reader etc. Measurement System etc. : GSMPHSPDCCDMA etc. : etc. etc PACKAGE OUTLINE Part name Package TK111xxCS ORDERING INFORMATION Marking Pin configuration Rxx See next page SOT23-5 TK121xxCS Ordering information T K 1 xxR 1 x x C S C L - G Number 1, 2 Voltage code Ex. 2.5V:25, 5.0V:50 Package code S: SOT23-5 Environment code G: Lead free Storage direction L: Left type Temperature range C: T A=25C, I: Full T K 1 1 1 0 0 C S C B - G TK11100CS SOT23-6 R00 See next page Package code S: SOT23-5 Temperature range C: T A=25C Environment code G: Lead free Storage direction B: Back type * "xx" means voltage code. "xx" 2005 SPRING POWER&RF ABSOLUTE MAXIMUM RATINGS Parameter Symbol Operating Voltage Range VOP Operating Temperature Range Power Dissipation TOP PD Rating 2.1 to 14.0 2.1 to 12.0 -40 to +85 600 Unit Remarks TK111xxCS/11100CS V TK121xxCS C Board mount mW ELECTRICAL CHARCTERISTICS TK11100CS: VIN=4.0V, VOUT=3.0V TK111xxCS, TK121xxCS: VIN=VOUT.TYP+1.0V, VCONT=1.8V, TA= TJ=25C Parameter Symbol Value Units Conditions MIN TYP MAX VDROP 80 140 mV IOUT=50mA Dropout Voltage *1 240 320 mA Maximum Output Current *2 IOUT.MAX VOUT=VOUT.TYPx0.9 63 100 TK111xxCS Quiescent Current 78 125 TK11100CS(R1=51k) IOUT=0mA IQ A 92 146 TK121xxCS ISTB 0.0 0.1 VCONT=0V Standby Current A IGND 1.0 1.8 mA IOUT=50mA Ground Pin Current 1.8 VOUT ON state TK111xxCS TK11100CS VOUT OFF state 0.35 VCONT V Control Voltage 0.9 VOUT ON state TK121xxCS 0.2 VOUT OFF state *1 For VOUT 2.0V, no regulations 2.0V. *2 The maximum output current is limited by power dissipation. . BLOCK DIAGRAM TK111xxCS TK11100CS 5 3 4 320k B.R. 500k 500k B.R. 1 2 4 3 5 TK111xxCS/TK121xxCS on 1 off 2 VCONT VIN VOUT CIN 4 COUT TK121xxCS 5 6 TK11100CS 5 GND 3 Noise pass 1 O.H.P. O.C.P. C.C. 320k O.H.P. O.C.P. C.C. 2 4 VIN VOUT VOUT VIN 1 COUT R2 CFB 2 3 CIN FB Noise 6 pass 5 GND VIN VCONT VOUT 4 R1 off VOUT=VFBx{(R1+R2)/R1} VFB.TYP=1.27V O.H.P. O.C.P. C.C. 320k B.R. 1 2 3 * C.C....Control Circuit, O.H.P...Over Heat Protection, O.C.P...Over Current Protection, B.G....Band gap Reference 2005 SPRING on