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参数资料
| 型号： | TPS61500PWP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 5 A SWITCHING REGULATOR, 2640 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | GREEN, PLASTIC, HTSSOP-14 |
| 文件页数： | 16/21页 |
| 文件大小： | 725K |
| 代理商： | TPS61500PWP |
ELECTRICAL CHARACTERISTICS
SLVS893 – DECEMBER 2008 ........................................................................................................................................................................................... www.ti.com
FSW = 1.2MHz(Rfreq=80k
), Vin=3.6V, CRTL=Vin, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VIN
Input voltage range
2.9
18
V
IQ
Operating quiescent current into Vin
Device PWM switching without load,Vin
3.5
mA
=3.6V
ISD
Shutdown current
EN = GND, Vin = 3.6 V
1.5
A
VUVLO
Under-voltage lockout threshold
VIN falling
2.5
2.7
V
Vhys
Under-voltage lockout hysteresis
130
mV
ENABLE AND REFERENCE CONTROL
Venh
EN logic high voltage
Vin = 2.9 V to 18 V
1.2
V
Venl
EN logic low voltage
Vin = 2.9 V to 18 V
0.4
V
Ren
EN pull down resistor
400
800
1600
k
Toff
Shutdown delay, SS discharge
EN high to low
10
ms
VOLTAGE AND CURRENT CONTROL
VREF
Voltage feedback regulation voltage
195
200
205
mV
IFB
Voltage feedback input bias current
200
nA
VEA_OFF
Error amplifier offset
-10
0
10
mV
Isink
Comp pin sink current
VFB = VREF+200 mV, VCOMP = 1 V
40
A
Isource
Comp pin source current
VFB = VREF –200 mV, VCOMP = 1 V
40
A
VCCLP
Comp pin Clamp Voltage
High Clamp
3
V
Low Clamp
0.75
VCTH
Comp pin threshold
Duty cycle = 0%
0.95
V
Gea
Error amplifier transconductance
240
340
440
mho
Rea
Error amplifier output resistance
10
M
fea
Error amplifier crossover frequency
500
kHz
FREQUENCY
fS
Oscillator frequency
Rfreq = 480 k
0.16
0.21
0.26
MHz
Rfreq = 80 k
1.0
1.2
1.4
Rfreq = 40 k
1.76
2.2
2.64
Dmax
Maximum duty cycle
Rfreq = 80 k
89%
93%
VFREQ
FREQ pin voltage
1.229
V
Tmin_on
Minimum on pulse width
Rfreq = 80 k
60
ns
Rdim_fil
Dimming filter resistance
25
k
POWER SWITCH
RDS(ON)
N-channel MOSFET on-resistance
VIN = VGS = 3.6 V
0.13
0.25
VIN = VGS = 3.0 V
0.3
ILN_NFET
N-channel leakage current
VDS = 40 V, TA = 25°C
1
A
OC, OVP and SS
ILIM
N-Channel MOSFET current limit
D = Dmax
3
3.8
5
A
ISS
Soft start bias current
Vss = 0 V
6
A
VOVP
Over voltage protection threshold
1.192
1.229
1.266
V
VOVP_hys
Over voltage protection hysteresis
40
mV
THERMAL SHUTDOWN
Tshutdown
Thermal shutdown threshold
160
°C
T hysteresis
Thermal shutdown threshold hysteresis
15
°C
4
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS61500
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