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参数资料
型号： TPS59116RGET
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： SWITCHING CONTROLLER, PQCC24
封装： 4 X 4 MM, GREEN, PLASTIC, VQFN-24
文件页数： 1/36页
文件大小： 827K
代理商： TPS59116RGET
S5
C6
C2
C5
PGOOD
VREF
0.9 V
10 mA
VTT
0.9 V
2 A
TPS59116RGE
20
19
18
17
VBST
DRVH
LL
DRVL
V5FILT
VLDOIN
VTTGND
VTTSNS
7
8
VTT
CS_GND
9
10
VDDQSET
CS
VDDQSNS
16
15
14
13
PGOOD
12
11
S5
S3
GND
MODE
VTTREF
COMP
NC
V5IN
PGND
22
21
24
23
1
2
3
4
5
6
C1
R1
R2
5V_IN
VDDQ
1.8 V
10 A
VIN
M1
M2
S3
L1
C7
R3
SP-CAP
2x150mF
Ceramic
2x10mF
1mH
Ceramic
2x10mF
Ceramic
0.033mF
Ceramic
0.1mF
Ceramic
1mF
Ceramic
1mF
5.1W
7.15 kW
100kW
IRF7832
IRF7821
C3
C4
UDG-10056
TI Information — Selective Disclosure
TPS59116
www.ti.com
SLUSA57 – NOVEMBER 2010
Complete DDR, DDR2 and DDR3 Memory Power Solution Synchronous Buck Controller,
3-A LDO, Buffered Reference for Embedded Computing Systems
Check for Samples: TPS59116
1
FEATURES
DESCRIPTION
2
Synchronous Buck Controller (VDDQ)
The TPS59116 provides a complete power supply for
DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory
–
Wide-Input Voltage Range: 3.0-V to 28-V
systems. It integrates a synchronous buck controller
–
D
CAP Mode with 100-ns Load Step
with a 3-A sink/source tracking linear regulator and
Response
buffered low noise reference. The TPS59116 offers
–
Current Mode Option Supports Ceramic
the lowest total solution cost in systems where space
Output Capacitors
is
at
a
premium.
The
TPS59116
synchronous
controller
runs
fixed
400-kHz
pseudo-constant
–
Supports Soft-Off in S4/S5 States
frequency PWM with an adaptive on-time control that
–
Current Sensing from RDS(on) or Resistor
can be configured in D-CAP Mode for ease of use
–
2.5-V (DDR), 1.8-V (DDR2), Adjustable to
and fastest transient response or in current mode to
1.5-V (DDR3) or Output Range 0.75-V to
support
ceramic
output
capacitors.
The
3-A
3.0-V
sink/source LDO maintains fast transient response
only requiring 20-mF (2 × 10 mF) of ceramic output
–
Equipped with Power Good, Overvoltage
capacitance. In addition, the LDO supply input is
Protection and Undervoltage Protection
available externally to significantly reduce the total
3-A LDO (VTT), Buffered Reference (VREF)
power losses. The TPS59116 supports all of the
–
Capable to Sink and Source 3 A
sleep state controls placing VTT at high-Z in S3
(suspend to RAM) and discharging VDDQ, VTT and
–
LDO Input Available to Optimize Power
VTTREF (soft-off) in S4/S5 (suspend to disk).
Losses
TPS59116 has all of the protection features including
–
Requires Small 20-mF Ceramic Output
thermal shutdown and is offered in a 24-pin 4 mm ×
Capacitor
4mm QFN package.
–
Buffered Low Noise 10-mA VREF Output
APPLICATIONS
–
Accuracy ±20 mV for both VREF and VTT
DDR/DDR2/DDR3/LPDDR3 Memory Power
–
Supports High-Z in S3 and Soft-Off in S4/S5
Supplies in Embedded Computing System
–
Thermal Shutdown
SSTL-2 SSTL-18 and HSTL Termination
1
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.
2
D-CAP is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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