TC1301A-PSCVMF Microchip Technology, TC1301A-PSCVMF Datasheet
TC1301A-PSCVMF
Specifications of TC1301A-PSCVMF
Related parts for TC1301A-PSCVMF
TC1301A-PSCVMF Summary of contents
Page 1
... A reference bypass pin is available to further reduce output noise and improve the power supply rejection ratio of both LDOs. The TC1301A/B is stable over all line and load conditions with a minimum of 1 µF of ceramic output capacitance, and utilizes a unique compensation scheme to provide fast dynamic response to sudden line voltage and load current changes ...
Page 2
... OUT1 1 µF Ceramic X5R Note optional BYPASS DS21798C-page OUT1 IN LDO #1 SHDN1 300 mA V OUT2 LDO #2 SHDN2 GND Bandgap Reference Bypass V DET RESET Threshold Detector TC1301A RESET DET OUT1 2.6V @ 150 mA V GND OUT2 OUT2 Bypass SHDN2 1 µF Ceramic X5R ON/OFF Control V ...
Page 3
... OUT — 103 180 µA — 114 180 µA ≥ 2.7V and V ≥ ΔT )/(V OUT , θ TC1301A/B = 4.7 µ µF, IN OUT1 OUT2 Conditions Note 2.7V to 6.0V (Note 2.7V to 6.0V (Note 1) IN Note 2 Note 3 +1V) ≤ V ≤ 0 (Note 4) OUTX OUTMax ...
Page 4
... SHDN > +25°C. BYPASS IH A Boldface type specifications apply for junction temperatures of -40°C to +125°C. Parameters Sym Shutdown Supply Current I IN_SHDNA TC1301A Shutdown Supply Current I IN_SHDNB TC1301B Power Supply Rejection Ratio PSRR Output Noise eN Output Short-Circuit Current (Average OUT1 ...
Page 5
... Sym Min Typical Max Units T -40 — +125 ° -65 — +150 ° — — +150 °C J θ — 208 — °C/W Typical 4-Layer Board JA θ — 41 — °C/W Typical 4-Layer Board with Vias JA TC1301A/B = +2.7V to +6.0V. Conditions Steady State Transient DS21798C-page 5 ...
Page 6
... In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH 350 T TC1301B J 300 ...
Page 7
... Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH 140 300 2.6V 120 OUT1 100 µA OUT2 100 100 mA OUT1 OUT1 20 0 -40 -25 - 110 125 Junction Temperature (°C) FIGURE 2-7: Dropout Voltage vs. Junction Temperature (V ). OUT1 180 V = 2.8V R1 160 +125° ...
Page 8
... TC1301A/B Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH 2.856 V = 2.8V 300 mA R1 OUT1 V = 2.6V 100 µA 2.848 R2 OUT2 2.840 2.832 2.824 2.816 2.808 -40 -25 - 110 125 Junction Temperature (°C) FIGURE 2-13: V vs. Junction OUT1 Temperature. 2.645 2.640 OUT2 2 ...
Page 9
... Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH FIGURE 2-19: Power Supply Rejection Ratio vs. Frequency (without bypass capacitor). FIGURE 2-20: Power Supply Rejection Ratio vs. Frequency (with bypass capacitor OUT2 4. 2. =2.6V 0 150 mA OUT1 I = 100 mA OUT2 BYPASS 0.01 0.01 0.1 ...
Page 10
... TC1301A/B Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH FIGURE 2-25: V and V OUT1 OUT2 from Input Voltage TC1301B. FIGURE 2-26: Dynamic Line Response. FIGURE 2-27: 300 mA Dynamic Load Step V . OUT1 DS21798C-page 10 +1V 100 µ 4.7 µ OUT1 OUT2 RESET = OPEN, T ...
Page 11
... Note: Unless otherwise indicated pF, SHDN1 = SHDN2 > For the TC1301A, V BYPASS IH 0. 2.8V DET TH 0.25 0. 0.10 0.05 0.00 -40 -25 - 110 125 Junction Temperature (°C) FIGURE 2-31: RESET Output Voltage Low vs. Junction Temperature. © 2008 Microchip Technology Inc +1V 100 µ 4.7 µ ...
Page 12
... TC1301A/B 3.0 TC1301A PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: TC1301A PIN FUNCTION TABLE Pin No. Name 1 RESET Push-pull output pin that will remain low while V 300 ms after Regulated output voltage #1 capable of 300 mA. OUT1 3 GND Circuit ground pin. 4 Bypass Internal reference bypass pin ...
Page 13
... ON/OFF control is performed by connecting SHDN1 to its proper level. When this pin is connected to a voltage less than 15 connected to a voltage that is greater than 45 will be turned ON. OUT1 TC1301A/B is below the reset threshold and for , V will be OFF. If this pin is IN OUT2 , IN ...
Page 14
... IN 5.8 GND (TC1301B) is For the optimal noise and PSRR performance, the GND pin of the TC1301A/B should be tied to a quiet circuit ground. For applications that have switching or < 0.2V RESET noisy inputs, tie the GND pin to the return of the output capacitor. Ground planes help lower inductance and ...
Page 15
... Power-On Reset S (POR) function. The input voltage for the detector is different for the TC1301A than it is for the TC1301B. For the TC1301A, the input voltage to the detector is pin For the TC1301B, the input voltage to the DET detector is internally connected to the output of LDO # ...
Page 16
... OVERCURRENT LIMIT In the event of a faulted output load, the maximum . The V OUT1 current the LDO output will permit to flow is limited internally for each of the TC1301A/B outputs. The peak current limit for V current limit for V circuit operation, the average current is limited to 200 mA for V ...
Page 17
... I VIN to 4.2V I VDET The total power dissipated within the TC1301A/B is the sum of the power dissipated in both of the LDO’s and the P(I ) term. Because of the CMOS construction, GND the typical I Operating at a maximum of 4.2V results in a power dissipation of 0.5 milliWatts. For most applications, this is small compared to the LDO pass device power dissipation and can be neglected ...
Page 18
... TC1301A/B EQUATION 6-3: × Rθ MAX TOTAL JA Where Maximum continuous junction tem- J(MAX) perature P = Total device power dissipation TOTAL Rθ = Thermal resistance from junction- JA to-ambient T = Maximum ambient temperature AMAX The maximum power dissipation capability for a package can be calculated given the junction to ambient thermal resistance and the maximum ambient temperature for the application ...
Page 19
... DET can be preset from 2. increments. TABLE 8-1: CUSTOM OUTPUT VOLTAGE AND THRESHOLD VOLTAGE RANGES OUT1 OUT2 DET 1.5V to 3.3V 1.5V to 3.3V For a listing of TC1301A/B standard parts, refer to the Product Identification System on page 25. DS21798C-page 19 can be OUT2 Threshold 2.2V to 3.2V ...
Page 20
... S 1. 1.65V B U 2.85V C V 2.65V D W 1.85V E X — — — For a listing of TC1301A/B standard parts, refer to the V OUT2 Product Identification System section on page 25. S 1.5V T 1.65V U 2.85V V 2.65V W 1.85V X — Y — Z — 8-Lead DFN Example: XXXX AFHA YYWW 0435 ...
Page 21
... D N NOTE 1RWHV © 2008 Microchip Technology Inc TC1301A/B φ L DS21798C-page 21 ...
Page 22
... TC1301A/B /HDG 3ODVWLF 'XDO )ODW 1R /HDG 3DFNDJH 0) ± [[ PP %RG\ >')1@ 1RWH NOTE TOP VIEW A3 1RWHV DS21798C-page 22 b EXPOSED PAD E K BOTTOM VIEW A NOTE NOTE © 2008 Microchip Technology Inc. ...
Page 23
... Corrected the incorrect part number options shown on the Product Identification System page and changed the “standard” output voltage and reset voltage combinations. 2. Added Appendix A: Revision History. Revision A (September 2003) • Original data sheet release. © 2008 Microchip Technology Inc. TC1301A/B DS21798C-page 23 ...
Page 24
... TC1301A/B NOTES: DS21798C-page 24 © 2008 Microchip Technology Inc. ...
Page 25
... TC1301 Type V V Reset OUT1 OUT2 A/B Voltage Standard Configurations Device: TC1301A: Dual LDO with microcontroller RESET function and single shutdown input. TC1301B: Dual LDO with microcontroller RESET function and dual shutdown inputs. Standard V /V /Reset OUT1 OUT2 Configurations: * TC1301A 3.3 / 3.0 / 2.63 3 ...
Page 26
... TC1301A/B NOTES: 21798C-page 26 © 2008 Microchip Technology Inc. ...
Page 27
... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
Page 28
... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...