The APL5338,APL5338A,APL5337 linear regulator is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination.-LED驱动|隔离|非隔离|降升|线性恒流|高低压-嘉泰姆电源方案- Powered by JAITAIMU V2

The APL5338,APL5338A,APL5337 linear regulator is designed to provide a regulated voltage with bi-directional output current for DDR-SDRAM termination.

发布时间2015/7/9 19:09:47
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Features

Sourcing and Sinking Current up to 2A

Wide Input Voltage Range: 1.2V to 3.6V

VTT and VTTREF Voltage Tracks at Half the VREF

Voltage

VTT and VTTREF Voltage with ±10mV Accuracy

Excellent Load Transient Response

Stable with 10µF Ceramic Output Capacitor

Current-Limit Protection

Thermal Shutdown Protection

Power-On-Reset Function on VCNTL

S3, S5 Input Signals for ACPI States

Small MSOP-10P and TDFN3x3-10 Packages

Lead Free and Green Devices Available

(RoHS Compliant)

General Description

The APL5338 linear regulator is designed to provide a

regulated voltage with bi-directional output current for

DDR-SDRAM termination. The APL5338 integrates two

power transistors to source or sink current up to 2A. It

also incorporates current-limit and thermal shutdown into

a single chip.

The output voltage of APL5338 tracks the voltage at VREF

pin. An internal resistor divider is used to provide a half

voltage of VREF for VTTREF and VTT Voltage. The VTT

output voltage is only requiring 10µF of ceramic output

capacitance for stability and fast transient response. The

S3 and S5 pins provide the sleep state for VTT (S3 state)

and suspend state (S4/S5 state) for device when S5 and

S3 are both pulled low the device provides the soft-off for

VTT and VTTREF. The MSOP-10P and TDFN3x3-10 pack-

age with a copper pad is available which provides excel-

lent thermal impedance.

QQ截图20150709191430.gif

相关文件

Part_No	Package & Pins	Input Voltage (V)		VCNTL Voltage (V)		Quiescent Current (typ)(uA)	Output Sink Current (max)(A)	Output Source Current (max)(A)	DDR Power	VTTREF	S3/S5
Part_No	Package & Pins	min	max	min	max	Quiescent Current (typ)(uA)	Output Sink Current (max)(A)	Output Source Current (max)(A)	DDR Power	VTTREF	S3/S5
APL5331	SOP-8 SOP-8P TO-252-5 TO-263-5	1.2	3.5	3.1	6	3900	3	3	DDR1 DDR2 DDR3	N	N
APL5333	MSOP-10	1.2	3.6	4.5	5.5	2000	3	3	DDR1 DDR2 DDR3	Y	Y
APL5338	MSOP-10 TDFN3x3-10	1.2	3.6	4.5	5.5	600	2	2	DDR2 DDR3	Y	Y
APL5338A	MSOP-10 TDFN3x3-10	1.2	3.6	3.1	5.5	600	2	2	DDR2 DDR3	Y	Y
APL5337	SOP-8 SOP-8P	1.1	4.5	3	5.5	1000	2	2	DDR2 DDR3	N	N