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參數(shù)資料
| 型號(hào)： | TPS54362QPWPRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | 8 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁(yè)數(shù)： | 1/34頁(yè) |
| 文件大小： | 826K |
| 代理商： | TPS54362QPWPRQ1 |
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I - Load Current - A
L
60%
65%
70%
75%
80%
85%
90%
0
0.5
1
1.5
2
2.5
3
Efficency
(%)
V
= 12 V,
VReg = 5 V,
Fsw = 500 kHz,
L = 22 H
C
= 100 F,
T = 25 C
IN
O
A
m
o
Rslew = 5kW
Rslew = 35kW
I - Load Current - A
L
60%
65%
70%
75%
80%
85%
95%
0
0.5
1
1.5
2
2.5
3
Efficency
(%)
VReg = 5 V,
Fsw = 500 kHz,
L = 22 H
C
= 100 F
Rslew = 5 k
m
W,
O
T = 25 C
A
o
V
= 6 V
IN
V
= 20 V
IN
90%
OV_TH
RST_TH
COMP
SS
VSENSE
PH
BOOT
VReg
Rslew
Vreg
VIN
LPM
VIN
EN
SYNC
nRST
GND
RT
Cdly
Supply
TPS54362
www.ti.com
SLVS845C – MARCH 2009 – REVISED MAY 2010
3A, 60V STEP DOWN DC/DC CONVERTER WITH LOW Iq
Check for Samples: TPS54362-Q1
1
FEATURES
Reset Function Filter Time for Fast Negative
Transients
2
Withstands Transients up to 60V With an
Operating Range of 3.6V to 48V
Programmable Overvoltage Output Monitoring
Asynchronous Switch Mode Regulator With
Programmable Undervoltage Output
External Components (L and C), Load Current
Monitoring, Issuance of Reset if Output Falls
up to 3A (max)
Below Threshold
0.8V ± 1.5% Voltage Reference
Thermal Shutdown During Excessive Power
Dissipation
200kHz to 2.2MHz Switching Frequency
Switch Current Limit Protection
High Voltage Tolerant Enable Input for ON/OFF
State
Short Circuit and Overcurrent Protection of
FET
Soft Start on Enable Cycle
Junction Temperature Range: –40°C to 150°C
Slew Rate Control on Internal Power Switch
Package: 20-pin HTSSOP PowerPAD
External Clock Input for Synchronization
Qualified for Automotive Applications
Pulse Skip Mode (PFM) During Light Output
Loads With Quiescent Current = 65mA Typical
APPLICATIONS
(LPM Operation)
Automotive Telematics
External Compensation for Wide Bandwidth
Navigation systems
Error Amplifier
In-Dash Instrumentation
Internal Undervoltage Lock Out UVLO
Battery Powered Applications
Programmable Reset Power on Delay
DESCRIPTION
The TPS54362 is a step down switch mode power supply with voltage supervisor. Integrated input voltage line
feed forward topology improves line transient regulation of the voltage mode buck regulator. The regulator has a
cycle-by cycle current limit. A pulse skip mode operation under no load reduces the supply current to 65mA.
Using the enable pin, the supply shutdown current is reduced to 1mA.
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
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2009–2010, 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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