TPS43340-Q1 Datasheet, PDF (1/38 Pages) Texas Instruments – LOW IQ, 30 μA, HIGH VIN QUAD-OUTPUT POWER SUPPLY

TPS43340-Q1
www.ti.com
SLVSB16B – NOVEMBER 2011 – REVISED APRIL 2012
LOW I_Q, 30 µA, HIGH V_IN QUAD-OUTPUT POWER SUPPLY
Check for Samples: TPS43340-Q1
FEATURES
1
•2 Input Voltage Range: 4 V to 40 V, Transients
up to 60 V
• Dual Output Synchronous Buck Controller
– Peak Gate Drive Current 0.6 A
– Separate Enable Inputs (EN1, EN2)
– Automatic Low-Power Mode Operation
– Low Current Consumption
– 30 µA (Typ) With Single Output
Operation in Low Power Mode
– 35 µA (Typ) With Dual Output Operation
in Low Power Mode
• Low Shutdown Current, I_sh = 5 μA Typ
• Single Synchronous Buck Regulator Converter
BUCK3
– Max Output Current 2 A
– Enable Input EN3
• Linear Regulator LREG1
– Enable Input EN4
• Internal Oscillator, Programmable via External
Resistor, 150 kHz to 600 kHz for Switching
Frequency f_{SW_BUCK1,2,3}
• Integrated PLL, External Synchronization
Frequency: 150 kHz to 600 kHz
• Switch Mode Regulators Operate with 180°
Phase-Shift
• Soft Start Input for Switchmode Supplies (SS1,
SS2, SS3)
• Reset Output for All Output Rails
• Reset Delay, Programmable with Capacitor
• Supply Under Voltage/Over Voltage Detection
and Shutdown
• Short Circuit, Over Current, and Thermal
Protection on Buck Regulator Gate Drive,
Buck Reg Converter, and Linear Regulator
Output
• Internal Thermal Overload Protection
• Thermally Enhanced PowerPAD™ Package
– 48-Pin HTQFP (PHP)
APPLICATIONS
• Infotainment
• Navigation
• TFT Cluster Display
• Automotive ECU
• Advanced Driver Information Systems
• Multi Rail DC Power Distribution Systems
Simplified Schematic
LReg 1
VReg 1
TPS 43340
VReg 2
VReg 3
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2012, Texas Instruments Incorporated