Texas Instruments TPS53125EVM-599 specifications Description, Applications, Features

Description			www.ti.com
		List of Tables
1	TPS53125EVM-599	Electrical and Performance Specifications	...................................................... 2
2	Test Point Description		4
3	TPS53125EVM-599	Bill of Materials	15

1Description

The TPS53125EVM-599 evaluation board provides the user with a convenient way to evaluate the TPS53125 Dual Synchronous Step-Down Controller in a realistic cost-sensitive application. Providing both a low core-type 1.05-V and I/O-type, 1.8-V outputs at up to 4 A from a loosely regulated 12-V (8-V to

22-V) source, the TPS53125EVM-599 includes switches and test points to assist users in evaluating the performance of the TPS53125 controller in their applications.

1.1Applications

•Digital television

•Set-top box

•DSL and cable modems

•Cost-sensitive digital consumer products

1.2Features

•8-V to 22-V input

•1.05-V and 1.8-V outputs

•Up to 4 A per channel output

•350-kHz pseudo-fixed frequency D-CAP2™ mode control

•Independent enable switches for power-on/power-off testing

2 TPS53125EVM-599 Electrical Performance Specifications

Table 1. TPS53125EVM-599 Electrical and Performance Specifications

		Parameter	Notes and Conditions	Min	Typ	Max	Unit
	Input Characteristics
	VIN	Input Voltage		8	12	22	V
	IIN	Input Current	VIN = 12 V, IOUT1 = 4 A, IOUT2 = 4 A	–	1.2	1.5	A
		No Load Input Current	VIN = 12 V, IOUT = 0 A	–	20	35	mA
	VIN_UVLO	Input UVLO	IOUT = 4	4.0	4.2	4.5	V
	Output Characteristics
	VOUT1	Output Voltage 1	VIN = 12 V, IOUT = 2 A	1.03	1.05	1.07	V
		Line Regulation	VIN = 8 to 22	–	–	1%
		Load Regulation	IOUT = 0 A to 4 A	–	–	1%
	VOUT1_rip	Output Voltage Ripple	VIN = 12 V, IOUT = 4 A	–	–	30	mVpp
	IOUT1	Output Current 1	VIN = 8 V to 22 V	0		4	A
	VOUT2	Output Voltage 2	VIN = 12 V, IOUT = 2 A	1.78	1.80	1.82	V
		Line Regulation	VIN = 8 V to 22 V	–	–	1%
		Load Regulation	IOUT = 0 A to 4 A	–	–	1%
	VOUT2_rip	Output Voltage Ripple	VIN = 12 V, IOUT2 = 4 A	–	–	30	mVpp
	IOUT2	Output Current 2	VIN = 8 V to 22 V	0		4	A
	Systems Characteristics
	FSW	Switching Frequency		200	350	400	kHz
	hpk	Peak Efficiency	VIN =12	–	88%	–
	h	Full Load Efficiency	VIN = 12, IOUT1 = IOUT2 = 4 A	–	80%	–
2 TPS53125EVM-599					SLVU392 –July 2010

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