TPS53124RGER ,: 4.5V-24V input Synchronous DCAP Mode Dual Step-Down Controller 24-VQFN -40 to 85 SLUS825C–FEBRUARY 2008–REVISED AUGUST 20145 Pin Configuration and FunctionsQFN Package24 PinsTop V ..
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TPS53125PW ,4.5V-24V input Synchronous DCAP2 Mode Dual Step-Down Controller 24-TSSOP -40 to 85Features... 18.4 Device Functional Modes ... 112 Applications..... 19 Application and Implementatio ..
TPS53125PW ,4.5V-24V input Synchronous DCAP2 Mode Dual Step-Down Controller 24-TSSOP -40 to 85Features 3 DescriptionThe TPS53125 is a dual, adaptive on-time D-CAP2™1• D-CAP2™ Mode Controlmode s ..
TPS53125PWR ,4.5V-24V input Synchronous DCAP2 Mode Dual Step-Down Controller 24-TSSOP -40 to 85Maximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNITVIN ..
TPS53126PWR ,4.5V-24V input Synchronous DCAP2 Mode Dual Step-Down Controller 24-TSSOP -40 to 85Electrical Characteristics...... 512.1 Trademarks..... 237.6 Timing Requirements... 612.2 Electrost ..
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TPS53124PW-TPS53124RGER
: 4.5V-24V input Synchronous DCAP Mode Dual Step-Down Controller 28-TSSOP -40 to 85
SGND
TPS53124RGE
(QFN24)
DRVH2
VBST2
EN2
LL1
DRVL1
DRVH1
VBST1
EN1 PGND1
LL2
3.3uH
0.1uF
InputVoltage
PGND
1.05V
4.7uF
3.3uH
PGND R2
0.1uF
VO1 R3141523456
PowerPAD
PGND
SGND
4.7uF L1
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TPS53124SLUS825C –FEBRUARY 2008–REVISED AUGUST 2014
TPS53124 Dual Synchronous Step-Down Controller
For Low-Voltage Power Rails Features 3 DescriptionThe TPS53124isa dual, Adaptive on-time DCAP™ High Efficiency, Low-Power Consumption mode synchronous controller. The part enables• D-Cap Mode Enables Fast Transient Response system designers to cost effectively complete the• High Initial Reference Accuracy suiteof digital TV power bus regulators with the
absolute lowest external component count and lowest• Low Output Ripple standby consumption. The main control loop for the• Wide Input Voltage Range: 4.5Vto 24V TPS53124 uses the D-CAP™ mode that optimized• Output Voltage Range: 0.76Vto 5.5V for low ESR output capacitors such as POSCAPor
SP-CAP promises fast transient response with no• Low-Side RDS(on) Loss-less Current Sensing
external compensation. The part provides a• Adaptive Gate Drivers with Integrated Boost Diode convenient and efficient operation with conversion• Internal 1.2-ms Voltage-Servo Soft Start voltages from 4.5Vto 24V and output voltage from Built-In 5-V Linear Regulator 0.76Vto 5.5V.
The TPS53124 is available in the 24-pin RGE
2 Applications package and in the 28-pin PW package and is Digital TV Power Supply specified from -40°Cto 85°C ambient temperature
range.• Networking Home Terminal Digital STB
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
Simplified Schematics
