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参数资料
型号： TPS51727RHARG4
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PQCC40
封装： 6 X 6 MM, GREEN, PLASTIC, QFN-40
文件页数： 1/42页
文件大小： 0K
代理商： TPS51727RHARG4
1
FEATURES
DESCRIPTION
APPLICATIONS
1
2
3
4
DROOP
VREF
GND
CSP1
TPS51727
RHA
5
6
7
8
CSN1
CSN2
CSP2
P
G
N
D
V
5
F
IL
T
IS
L
E
W
O
S
R
S
E
L
T
O
N
S
E
L
T
R
IP
S
E
L
P
M
O
N
40
39
38
37
36
35
34
33
30
29
28
27
26
25
23
22
DRVH1
VBST
LL1
DRVL1
V5IN
PGND
DRVL2
LL2
L1
0.36 mH
C4
C11
1 mF
T
H
A
L
V
OUT
C1
1 mF
R5
R1
P
G
O
D
UDG-08003
VBAT
9
10
C8
GFB
VFB
THRM
R
T2
R6
VFB
R7
CSP1
CSN1
CSN2
CSP2
GFB
C6
VREF
E
N
32
31
S
L
P
24
21
11
12
13
14
15
16
17
18
19
20
P
C
N
T
P
D
1
V
ID
4
V
ID
3
V
ID
2
V
ID
1
V
ID
0
D
A
C
S
VBST2
DRVH2
C
IN
C
OUT
+
L2
0.36 mH
Time Constant
and
Thermal Matching
CSP2
CSN2
C10
1 mF
PGND
Q4
T
H
A
L
V
ID
4
V
ID
3
V
ID
2
V
ID
1
V
ID
0
P
D
2
Q1
Q2
Q3
VBAT
VREF
V5
P
M
O
N
P
G
O
D
E
N
S
L
P
Time Constant
and
Thermal Matching
CSP1
CSN1
N
/C
P
C
N
T
V
5
V
OUT
TPS51727
www.ti.com ..................................................................................................................................................... SLUS806B – APRIL 2008 – REVISED JANUARY 2009
DUAL-PHASE, ECO-MODE STEP-DOWN POWER MANAGEMENT IC FOR 50-A+
APPLICATIONS
2
Seamless Phase Add/Drop Enables Maximum
Efficiency Under Any Load Condition
The TPS51727 is a complete, step down controller
with integrated gate drivers. The PCNT pin enables
Minimum External Parts Count
operation in dual or single-phase mode to optimize
±8 mV VOUT Accuracy Over Line/Load/Temp.
efficiency depending on the load requirements. The
5-Bit DAC with 0.4-V to 1.25-V Output Range
advanced
D-CAP+
architecture
provides
fast
Supports Wide Range of Applications
transient response with minimum output capacitance.
The
DAC
supports
VID-on-the-fly
transitions
to
Optimized Efficiency at Light & Heavy Loads
optimize the output voltage to the operating state of
Patent Pending Output Overshoot Reduction
the system to meet idle power requirements. The
(OSR)
auto-skip
feature
of
the
TPS51727
optimizes
Accurate, Adjustable Voltage Positioning
light-load efficiency in both single and dual phase
operation. System management features include an
Selectable 200/300/400/500 kHz Frequency
adjustable thermal sensor, output power monitoring
Pat. pending AutoBalance Phase Balancing
and sleep state controls. Adjustable control of VOUT
Supports Resistor or Inductor DCR Current
slew rate and voltage positioning are provided. In
Sensing
addition, the TPS51727 includes two high-current
MOSFET gate drivers to drive high and low side
Accurate, Selectable Current Limit
N-channel MOSFETs with exceptionally high speed
4.5-V to 28-V Conversion Voltage Range
and low switching loss The PCNT and VID0 through
Fast MOSFET Driver w/Integrated Boost Diode
VID4, pins have flexible LV I/O thresholds that enable
interface with logic voltages from 1.0 V to 3.6 V. The
Integrated OVP Can Be Disabled Thermal
TPS51727 is packaged in a space saving, thermally
Sensor and Output Power Monitor
enhanced, RoHS compliant 40-pin QFN and is rated
Small 6 × 6, 40-Pin QFN PowerPAD Package
to operate from –10°C to 100°C.
High-Current, Low-Voltage Applications for
Adapter, Battery, NVDC or 5-V/12-V Rails
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
ECO-MODE, OSR, AutoBalance, PowerPAD, D-CAP+, D-CAP+ are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2008–2009, 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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