FP6137ESPPTR [FITIPOWER]

2A BUS TERMINATION REGULATOR;


型号：	FP6137ESPPTR
厂家：	Fitipower
描述：	2A BUS TERMINATION REGULATOR
文件：	总7页 (文件大小：392K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

fitipower integrated technology lnc.

FP6137E

2A BUS

TERMINATION REGULATOR

Description

Features

The FP6137E linear regulator is designed to provide

the transient peaks up to 2A sourcing or sinking

capability for DDR SDRAM bus termination

application. The output voltage can track half of

input power by two external voltage divider resistors.

● 2A Source or Sink Current

● Power MOSFET Integrated

● Low Output Voltage Offset

● Current Limiting Protection

● Thermal Shutdown Protection

● Adjusted Output by External Resistors

● Shutdown for Standby or Suspend Mode

● RoHS Compliant

The FP6137E provides current limit in both

sourcing/sinking mode and thermal shutdown

function which protects the excessive heating due to

high current and high junction temperature.

Applications

● DDR-I, DDR-II, and DDR-III Bus Termination

Voltage

The FP6137E is available in the SOP-8 exposed pad

package.

● SSTL-2 and SSTL-3 Termination

● Active Termination Buses

Pin Assignments

Ordering Information

FP6137E□□□

SP Package (SOP-8 Exposed Pad)

TR: Tape/Reel

VIN

GND

P: Green

G: Green

GND

VCNTL

REFEN

VOUT

Package Type

SP: SOP-8 (Exposed Pad)

Figure 1. Pin Assignment of FP6137E (Top View)

FP6137E-1.5-FEB-2012

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FP6137E

Typical Application Circuit

1.5V/1.8V/2.5V

V_IN

V_CNTL

3.3V

VIN

VCNTL

R_U

100K

FP6137E

0.75V/0.9V/1.25V

V_OUT

VOUT

REFEN

C_IN

470µF

C_CNTL

47µF

C_SS

1µF

R_D

100K

GND

C_VOUT

470µF

Figure 2. Typical Application Circuit of FP6137E with EC Capacitors

1.5V/1.8V/2.5V

V_IN

V_CNTL

3.3V

VIN

VCNTL

R_U

100K

FP6137E

0.75V/0.9V/1.25V

V_OUT

VOUT

REFEN

C_IN

10µF

C_CNTL

1µF

C_SS

1µF

R_D

GND

C_VOUT

22µF

100K

Note A: The recommend value of resistor is 10k~100k

Figure 3. Typical Application Circuit of FP6137E with MLCC Capacitors

Functional Pin Description

Pin Name

Pin Function

Power input pin. VIN is the input power supply used to create the external reference voltage for regulating

VOUT. VIN sources current to VOUT by upper NMOS.

VIN

GND

Common ground pin. The VOUT sinks current to GND by lower NMOS.

VCNTL

REFEN

VOUT

Power input pin. The VCNTL power supplies the internal control circuitry and gate drive voltage.

Chip enable and input reference voltage pin. The reference voltage is half of the VIN power by two external

voltage divide resistors.

Regulator output pin. VOUT voltage tracks the REFEN voltage, and it is capable of sourcing or sinking current

up to peak 2A.

FP6137E-1.5-FEB-2012

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FP6137E

Block Diagram

VCNTL

VIN

REFEN

Error

Amp

VOUT

Current Limit &

Thermal Shutdown

GND

Figure 4. Block Diagram of FP6137E

Absolute Maximum Ratings

● VIN to GND ---------------------------------------------------------------------------------------------------- 6V

● VCNTL to GND ----------------------------------------------------------------------------------------------- 6V

● Power Dissipation @25°C (P_D) SOP-8 (Exposed Pad) --------------------------------------------- 1.25W

● Package Thermal Resistance (θ_JA) SOP-8 (Exposed Pad) ---------------------------------------- 80°C/W

● Junction Temperature --------------------------------------------------------------------------------------- 150°C

● Storage Temperature Range ------------------------------------------------------------------------------ -65°C to 150°C

● Lead Temperature (Soldering, 10sec.) ------------------------------------------------------------------ 260°C

● ESD Susceptibility

HBM(Human Body Mode) --------------------------------------------------------------------------------- 2KV

MM(Machine Mode) ----------------------------------------------------------------------------------------- 200V

Note 1：Stresses beyond those listed under “Absolute Maximum Ratings" may cause permanent damage to the device.

Recommended Operating Conditions

● Input Voltage (V_IN) -------------------------------------------------------------------------------------------- (1.5V,1.8V,2.5V) ±5%

● Input Voltage (V_CNTL) ---------------------------------------------------------------------------------------- (3.3V to 5.5V) ±5%

● Operating Temperature Range (T_OPR) ------------------------------------------------------------------- -40ºC to +85ºC

FP6137E-1.5-FEB-2012

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FP6137E

Electrical Characteristics

(V_CNTL=3.3V, V_IN=1.5V/1.8V/2.5V, V_REFEN=0.5*V_IN, C_OUT=10µF, T_A=25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

INPUT

Operation Voltage Range

(DDRI /DDII/ DDR-III)

V_CNTL

I_CNTL

I_SD

3.3

1.5

5.5

3.0

V_CNTLQuiescent Current

Shutdown Current

No Load

µA

V_REFEN<0.2V

OUTPUT VOLTAGE

Output Offset Voltage

V_OS

No Load , (V_REFEN-V_OUT

I_OUT= 0 to 2A

)

-20

2.0

0.6

Load Regulation (Note2)

(DDRI/DDII/DDR-III)

LOAD



I_OUT= 0 to 2A

PROTECTION

Current Limit

I_LIM

T_SD

2.5

170

°C

Thermal Shutdown Temperature

(Note3)

Hysteresis



SHUTDOWN CONTROL

Enable High Level

V_REF-H

V_REF-L

Shutdown Low Level

0.2

Note 2：Load regulation is measured at a constant junction temperature by using a 20ms low duty cycle current pulse.

Note 3：Guarantee by design.

FP6137E-1.5-FEB-2012

fitipower integrated technology lnc.

FP6137E

Typical Performance Curves

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.65

0.60

0.55

0.50

0.45

0.40

0.35

0.30

0.25

0.20

V_CNTL=3.3V

V_CNTL=5V

V_CNTL=3.3V

V_CNTL=5V

-40

-20

100

-40

-20

100

Junction Temperature (^oC)

Figure 5. Turn-On Threshold Voltage vs. Junction

Temperature

Figure 6. Turn-Off Threshold Voltage vs. Junction

Temperature

V_OUT=0.9V

V_OUT=1.25V

V_CNTL=5V

-2

V_CNTL=3.3V

-2

V_CNTL=3.3V

-4

-6

-8

-4

-6

-8

-40

-20

100

-20

100

Junction Temperature (^oC)

Figure 7. Output offset (V_OUT-V_REFEN) vs. Junction

Temperature

Figure 8. Output offset (V_OUT-V_REFEN) vs. Junction

Temperature

Sinking

Sourcing

V_CNTL=5V, V_IN=2.5V

V_CNTL=3.3V, V_IN=2.5V

V_CNTL=5V, V_IN=2.5V

V_CNTL=5V, V_IN=1.8V

V_CNTL=3.3V, V_IN=1.8V

V_CNTL=3.3V, V_IN=2.5V

V_CNTL=3.3V, V_IN=1.8V

=5V, V =1.8V

CNTL

-40

-20

100

-40

-20

100

Juncition Temperature (⁰C)

Figure 9. Current Limit vs. Junction Temperature

FP6137E-1.5-FEB-2012

Figure 10. Current Limit vs. Junction Temperature

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FP6137E

Typical Performance Curves (Continued)

Source

V_CNTL=3.3V

Sink

V_CNTL=3.3V

V_IN=2.5V, V_REFEN=1.25V

Figure11. Output Short-Circuit Protection

Figure12. Output Short-Circuit Protection

Switching Frequency=1kHz

V_CNTL=3.3V

V_REFEN=0.9V, 2A

Switching Frequency=1kHz

V_CNTL=3.3V

V_REFEN=1.25V, 2A

Figure13. 1.25V_OUT@ 2A Transient Response

Figure14. 0.9V_OUT@ 2A Transient Response

FP6137E-1.5-FEB-2012

fitipower integrated technology lnc.

FP6137E

Outline Information

SOP-8 (Exposed Pad) Package (Unit: mm)

DIMENSION IN MILLIMETER

SYMBOLS

UNIT

MIN

1.25

0.00

1.25

0.31

4.80

3.04

3.80

2.15

1.20

5.80

0.40

MAX

1.70

0.15

1.55

0.51

5.00

3.50

4.00

2.41

1.34

6.20

1.27

Note：Followed From JEDEC MO-012-E.

Carrier Dimensions

Life Support Policy

Fitipower’s products are not authorized for use as critical components in life support devices or other medical systems.

FP6137E-1.5-FEB-2012

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