TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 www.ti.com ........................................................................................................................................... SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 HIGH-EFFICIENCY STEP-DOWN LOW POWER DC-DC CONVERTER FEATURES 1 • • • • • • • • • High-Efficiency Synchronous Step-Down Converter With Greater Than 95% Efficiency 2 V to 5.
TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 ........................................................................................................................................... www.ti.com DESCRIPTION (CONTINUED) The TPS6200x is a synchronous current-mode PWM converter with integrated – and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count.
TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 www.ti.com ...........................................................................................................................................
TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 ........................................................................................................................................... www.ti.com DETAILED DESCRIPTION Operation The TPS6200x is a step down converter operating in a current mode PFM/PWM scheme with a typical switching frequency of 750 kHz.
TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 www.ti.com ........................................................................................................................................... SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 Connecting the SYNC pin to the GND pin enables the power save mode. The converter operates in the PWM mode at moderate to heavy loads and in the PFM mode during light loads maintaining high efficiency over a wide load current range.
TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008 SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008 ........................................................................................................................................... www.ti.
I(Q) - Operating Quescent Current - mA Submit Documentation Feedback TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008
200 ms/div 400 ms/div 10 ms/div Submit Documentation Feedback TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008
EN 2 V/div VO 1 V/div Power Good 1 V/div II 200 mA/div 250 ms/div 2.55 2.54 VO − Output Voltage − V 2.53 2.52 2.51 2.50 2.49 2.48 2.47 2.46 2.
R1 ö æ VO = 0.45 V ´ ç 1 + R2 ÷ø è ≤ Ω 1 for Co < 47 mF 2p ´ 30000 ´ R1 1 = for Co ³ 47 mF 2p ´ 5000 ´ R1 C(ff) = C(ff) VI = 2.7 V to 5.5 V 1 VIN L 9 L1 = 10 mH VO = 2.5 V/600 mA R3 = 320 kΩ + 8 Ci = 10 mF EN FB 5 R1 = 820 kΩ TPS62000 6 ILIM C(ff) = 6.8 pF 4 + PG PG Co = 10 mF 7 SYNC GND 3 10 PGND FC 2 R2 = 180 kΩ C3 = 0.
VO VI L ´ f 1 DIL = VO ´ IL(max) = IO(max) + DIL 2 Δ ≤ ≤ ≥ ≤ ≤ VO VI L ´ f 1 IRMS(CO ) = VO ´ VO VI L ´ f 1 DVO = VO ´ ≤ ≥ Ω Ω Ω 1 ´ 2´ 3 æ ö 1 ´ ç + ESR ÷ è 8 ´ CO ´ f ø Submit Documentation Feedback TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008
Ω VO VI IRMS = IO(max) ´ æ V ö ´ ç 1- O ÷ VI ø è IRMS = 1 VI VIN L EN FB L1 9 VO + 8 Ci R3 5 R1 TPS62000 6 IO 2 C(ff) 4 ILIM + PG PG Co 7 SYNC GND 3 10 PGND FC R2 C3 2 Submit Documentation Feedback TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008
1 VI = 5 V C1 10 mF 8 VIN L EN FB 9 L1 22 mH VO = 3.3 V/600 mA 5 TPS62007DGS 6 7 ILIM SYNC GND C1 10 mF 1 8 4 PG FC 2 Power Good L1: Sumdia CDRH5D28-220 C1, C2: 10 mF Ceramic Taiyo Yuden JMK316BJ106KL C3: 0.1 mF Ceramic C3 0.1 mF VIN L EN FB 9 7 ILIM SYNC GND 3 L1 10 mH VO = 2.5 V/600 mA 5 TPS62006DGS 6 C2 10 mF 10 PGND 3 VI = 2.7 V to 4.2 V 680 kΩ 470 kΩ PGND PG FC C2 10 mF 10 4 2 C3 0.
1 VI = 2.5 V to 4.2 V C1 10 mF 8 VIN L EN FB 9 L1 10 mH VO = 1.8 V/300 mA 5 C2 10 mF TPS62005DGS 6 7 ILIM 10 PGND SYNC GND 4 PG FC 3 2 L1: C1,C2: C3 0.1 mF C3: VI = 2 V to 3.8 V C1 10 mF 1 8 VIN L EN FB 9 6 7 ILIM SYNC GND 3 PGND PG FC 2 L1 10 mH VO = 1.2 V/200 mA 5 C2 47 mF TPS62003 Murata LQH4C100K04 10 mF Ceramic Taiyo Yuden JMK316BJ106KL 0.1 mF Ceramic + 10 4 C3 0.
10 mH 820 kW (2) 470 kW 10 mF 47 mF 326 kW 524 kW 0.1 mF Sumida CDRH5D28-100 10 mF Ceramic Taiyo Yuden JMK316BJ106KL Sanyo 6TPA47M 0.
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PACKAGE MATERIALS INFORMATION www.ti.com 19-Nov-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TPS62000DGSR VSSOP DGS 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPS62002DGSR VSSOP DGS 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 TPS62003DGSR VSSOP DGS 10 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.
PACKAGE MATERIALS INFORMATION www.ti.com 19-Nov-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS62000DGSR VSSOP DGS 10 2500 367.0 367.0 35.0 TPS62002DGSR VSSOP DGS 10 2500 367.0 367.0 35.0 TPS62003DGSR VSSOP DGS 10 2500 367.0 367.0 35.0 TPS62004DGSR VSSOP DGS 10 2500 367.0 367.0 35.0 TPS62005DGSR VSSOP DGS 10 2500 367.0 367.0 35.0 TPS62006DGSR VSSOP DGS 10 2500 367.0 367.0 35.
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