参数资料
型号: TPS54326RGTT
厂商: Texas Instruments
文件页数: 3/29页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 3A 16QFN
标准包装: 250
系列: SWIFT™, D-CAP2™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.76 V ~ 5.5 V
输入电压: 2 V ~ 18 V
PWM 型: 混合物
频率 - 开关: 700kHz
电流 - 输出: 3A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-VFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 16-QFN-EP(3x3)

RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
SLVSA13E – OCTOBER 2009 – REVISED JUNE 2012
MIN
MAX
UNIT
V CC
V IN
Supply input voltage range
Power input voltage range
V BST
V BST (vs SW1, SW2)
SS, PG
4.5
2
–0.1
–0.1
–0.1
18
18
24
5.7
5.7
V
V
V I
Input voltage range
EN
V O , V FB
–0.1
–0.1
18
5.5
V
SW1, SW2
SW1, SW2 (10 ns transient)
P GND1 , P GND2
–1.8
–3
–0.1
18
18
0.1
V O
I O
T A
T J
Output voltage range
Output current range
Operating free-air temperature
Operating junction temperature
V REG5
I VREG5
–0.1
0
–40
–40
5.7
10
85
125
V
mA
°C
°C
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range, V C C , V IN = 12V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
I VCC
I VCCSDN
Operating - non-switching supply
current
Shutdown supply current
V CC current, T A = 25°C, EN = 5 V,
V FB = 0.8 V
V CC current, T A = 25°C, EN = 0 V
850
1.8
1300
10
μ A
μ A
LOGIC THRESHOLD
V ENH
V ENL
EN high-level input voltage
EN low-level input voltage
EN
EN
1.5
0.4
V
V
V FB VOLTAGE AND DISCHARGE RESISTANCE
V FB
Voltage light load mode
T A = 25°C, V O = 1.05 V, I O = 10 mA
T A = 25°C, V O = 1.05 V
757
771
765
773
mV
V FB
Threshold voltage, continuous mode T A = 0°C to 85°C, V O = 1.05 V (1)
(1)
T A = -40°C to 85°C, V O = 1.05 V
753
751
777
779
mV
I VFB
R Dischg
Input current
V O discharge resistance
V FB = 0.8 V, T A = 25°C
EN = 0 V, V O = 0.5 V, T A = 25°C
0
50
±0.1
100
μ A
?
V REG5 OUTPUT
V VREG5
Output voltage
T A = 25°C, 6 V < V CC < 18 V,
0 < I VREG5 < 5 mA
5.3
5.5
5.7
V
V LN5
V LD5
I VREG5
Line regulation
Load regulation
Output current
6 V < V CC < 18 V, I VREG5 = 5 mA
0 mA < I VREG5 < 5 mA
V CC = 6 V, V REG5 = 4 V, T A = 25°C
70
20
100
mV
mV
mA
MOSFET
R DS(on)h
R DS(on)l
High side switch resistance
Low side switch resistance
25°C, V BST - SW1, SW2 = 5.5 V
25°C
120
70
m ?
m ?
CURRENT LIMIT
I ocl
Current limit
L OUT = 1.5μH
(1)
3.5
4.1
5.5
A
THERMAL SHUTDOWN
Hysteresis
T SDN
Thermal shutdown threshold
Shutdown temperature
(1)
(1)
150
25
°C
(1)
Specified by Design (not production tested).
Copyright ? 2009–2012, Texas Instruments Incorporated
Product Folder Link(s) : TPS54326
3
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