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| 型号： | TPS65530RSLTG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3.3 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PQCC48 |
| 封装： | 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, QFN-48 |
| 文件页数： | 28/31页 |
| 文件大小： | 931K |
| 代理商： | TPS65530RSLTG4 |
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SLVS744C – OCTOBER 2007 – REVISED MAY 2008....................................................................................................................................................... www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
0
°C ≤ T
J ≤ 125°C, 1.8 V ≤ VCC2 ≤ 5 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
High-side Nch FET ON resistance(3)
VPS = 5 V
320
500
m
Low-side Nch FET ON resistance(3)
VPS = 5 V
200
250
m
Trigger voltage to start CH3
0.48
V
Trigger voltage to power off LDO
0.25
V
CH2
VCC2
Supply voltage
1.5
5.5
V
VOUT2
Output voltage(2)
2.5
3.6
V
VCC2 > 2.4 V, VOUT2 = 3.3 V,
IOUT2
Output current(2)
Feedback resistance: R1 = 180 k
,
600
mA
R2 = 820 k
VFB2
FB2 reference voltage
No load
0.595
0.605
0.615
V
Overcurrent protection threshold
2.6
3.3
A
Overvoltage protection threshold
0.67
0.75
0.83
V
(sensing at FB2 pin)
High-side FET
VPS = 5 V
100
210
ON resistance
Buck
m
side(3)
Low-side FET
VPS = 5 V
450
600
ON resistance
High-side FET
VPS = 5 V
130
240
ON resistance
Boost
m
side(4)
Low-side FET
VPS = 5 V
80
140
ON resistance
Trigger voltage to power off CH3
VOUT2 = 0.5 V
0.5
V
VOUT2 leakage current
VOUT2 = 0.5 V
1
A
Nch FET ON resistance for discharge
XSLEEP = AGND, ENAFE = AGND
1
2
k
CH3
VCC3
Supply voltage
2.5
5.5
V
VOUT3
Output voltage(5)
0.9
2.5
V
VCC3 > 2.5 V, VOUT3 = 1.8 V,
IOUT3
Output current(5)
Feedback resistance: R1 = 220 k
,
300
mA
R2 = 470 k
VFB3
FB3 reference voltage
No load
0.59
0.6
0.61
V
Overcurrent protection threshold
0.6
1
A
Overvoltage protection threshold
0.67
0.75
0.83
V
(sensing at FB3 pin)
High-side Nch FET ON resistance(4)
VPS = 5 V
370
750
m
Low-side Nch FET ON resistance(4)
VPS = 5 V
300
600
m
Nch FET ON resistance for discharge
XSLEEP = AGND, ENAFE = AGND
1
2
k
Trigger voltage to start CH2
0.48
V
Trigger voltage to power off CH1
0.2
V
CH4
VCC4
Supply voltage
1.5
5.5
V
VOUT4
Output voltage(5)
2.2
3.6
V
VCC4 > 2.4 V, VOUT4 = 3.3 V,
IOUT4
Output current(5)
Feedback resistance: R1 = 82 k
,
100
300
mA
R2 = 330 k
VFB4
FB4 reference voltage
No load
0.595
0.605
0.615
V
(3)
The value of FET ON resistance includes the resistance of bonding wire.
(4)
The value of FET ON resistance includes the resistance of bonding wire.
(5)
Specified by design
6
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65530
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