TS1537 TSC | Alldatasheet

Document overview

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Technical content

Features

— Low dropout performance 1.3V max. — Full current rating over line and temperature. — Fast transient response — ±2%Total output regulation over line, load and temperature — Build-in thermal shutdown each channel — Output current limiting for each channel — Good noise rejection — Channel 1=3.3V (TS1537A/B) or 2.5V (TS1537C) — Channel 2=2.5V (TS1537A) or 1.8V (TS1537B/C) Block Diagram (each channel)

Ordering Information

Part No. Operating Temp. (Ambient) Package TS1537ACM5 TS1537BCM5 TS1537CCM5 -0 ~ +85 oC TO-263-5L Note: TS1537A is ch1=3.3V, ch2=2.5V, TS1537B is ch1=3.3V, ch2=1.8V. TS1537C is ch1=2.5V, ch2=1.8V. Absolute Maximum Rating Input Supply Voltage Vin 12 V Operation Input Supply Voltage Vin (operate) 10 V Power Dissipation P D Internally Limited W Operating Junction Temperature Range T J 0 ~ +150 oC Storage Temperature Range T STG -65 ~ +150 oC Lead Soldering Temperature (260 oC) 10 S Pin assignment: 1. Input 2 2. Input 1 3. Ground 4. Output 1 (3.3V/2.5V) 5. Output 2 (2.5V/1.8V)

TS1537A/B/C 2-5 2003/12 rev. B

Electrical Characteristics

Ta = 25 oC, unless otherwise specified. Parameter Conditions Min Typ Max Unit TS1537A/B-Vout 1 4.8V ≤ Vin ≤ 7V, Io=10mA 3.267 3.3 3.366 V TS1537A/C-Vout 2/1 4V ≤ Vin ≤ 7V, Io=10mA 2.475 2.5 2.550 Output Voltage TS1537B/C-Vout 2 4V ≤ Vin ≤ 7V, Io=10mA 1.782 1.8 1.836 V Input Supply Voltage -- -- 10 V Line Regulation Vout+1.5V ≤ Vin ≤ 7V, Io=10mA -- 0.015 0.2 % Vout 1 Vin=5V, 10mA ≤ Io ≤ 1A Load Regulation (note 1,2) Vout 2 Vin=4V, 10mA ≤ Io ≤ 1A -- 0.5 1.0 % Dropout Voltage Io=1A, ∆Vout=0.1%Vout -- 1.3 1.4 V Minimum Load Current 0 oC ≤ Tj ≤ 125 oC, (note 3) -- 8 10 mA Thermal Regulation Ta=25 oC, 30mS pulse -- 0.008 0.04 uA Current Limit Vin - Vout=3V 1.1 -- -- A Temperature Stability Io=10mA -- 0.5 -- % Ripple Rejection F = 120Hz, Io=1A Cout=25uF, Vin=Vout + 3V -- 60 70 dB Thermal Performance Condition Package type Typ Unit Thermal Resistance Junction to Ambient TO-263-5L 85 oC/W Note 1: See thermal regulation specification for changes in output voltage due to heating effects. Line and load regulation are measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output lead = 1/18” from the package. Note 2: Line and load regulation are guaranteed up to the maximum power dissi pation of 15W. Power dissipation is determined by the input / output voltage difference and the output cu rrent. Guaranteed maximum power dissipation will not be available over the full input / output voltage range. Note 3: Quiescent current is defined as the minimum output current required to maintain the regulation.

TS1537A/B/C 3-5 2003/12 rev. B Typical Application Circuit “A” version “B” version “C” version

TS1537A/B/C 5-5 2003/12 rev. B TO-263-5L Mechanical Drawing B D C A J I H G F E TO-263-5L DIMENSION MILLIMETERS INCHES DIM MIN MAX MIN MAX A 10.220 10.260 0.402 0.404 B 14.600 15.870 0.575 0.625 C 0.750 0.770 0.030 0.030 D 1.573 1.827 0.062 0.072 E 4.560 4.570 0.179 0.180 F 1.240 1.270 0.049 0.050 G 2.280 2.790 0.090 0.110 H 0.280 0.320 0.011 0.013 I 8.240 8.280 0.324 0.326 J 1.540 1.800 0.060 0.071