参数资料
型号: TPS51020DBTR
厂商: Texas Instruments
文件页数: 3/28页
文件大小: 0K
描述: IC DUAL DC/DC SYNC CTRLR 30TSSOP
标准包装: 1
应用: 控制器,DDR,DDR2
输入电压: 4.5 V ~ 28 V
输出数: 2
输出电压: 0.9 V ~ 24 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 30-TFSOP(0.173",4.40mm 宽)
供应商设备封装: 30-TSSOP
包装: 标准包装
产品目录页面: 1024 (CN2011-ZH PDF)
其它名称: 296-26971-6
TPS51020
SLUS564C ? JULY 2003 ? REVISED OCTOBER 2008
TSSOP (0.5 mm)
DBT PACKAGE
(TOP VIEW)
INV1
COMP1
SSTRT1
SKIP
VO1_VDDQ
DDR
GND
REF_X
ENBL1
ENBL2
VO2
PGOOD
SSTRT2
COMP2
INV2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
VBST1
OUT1_U
LL1
OUT1_D
OUTGND1
TRIP1
VIN
TRIP2
VREG5
REG5_IN
OUTGND2
OUT2_D
LL2
OUT2_U
VBST2
ELECTRICAL CHARACTERISTICS
TA = ?40 ° C to 85 ° C, 4.5 V < VIN < 20 V, CVIN = 0.1 μ F, CVREG5 = 2.2 μ F, CREF_X = 0.01 μ F, PGOOD = 0.2 V, ENBLx = DDR = VIN,
INVx = COMPx, RSSTRTx = OPEN, TRIP1 = TRIP2 = VIN, LLx = GND, VBSTx = LLx+5, C(OUTx_U, OUTx_D)=1 nF, REG5_IN = 0V, GND =
OUTGNDx = 0 V, VO1_VDDQ = VO2 = 0 V (unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CURRENTS
IVIN
IVIN(STBY)
IVIN(SHDN)
IVIN(REG5)
IREG5
IVBSTx
IVBSTx
VIN supply current
VIN standby current
VIN shutdown current
VIN supply current, REG5_IN as 5-V input
current
REG5_IN input supply current
VBST supply current
VBST shutdown current
REG5V_IN = OPEN,
OSC = OFF
ENBLx = 0 V,
REG5V_IN = OPEN,
ENBLx = DDR = 0 V,
REG5V_IN = OPEN
REG5V_IN = 5 V,
REG5V_IN = 5 V,
ENBLx = DDR = VIN
ENBLx = DDR = 0 V
TRIPx = VIN,
DDR = VIN,
OSC = OFF
OSC = OFF
OSC = OFF
1.4
350
0.05
200
1.0
0.05
0.05
2.2
550
1.00
500
1.7
1.00
1.00
mA
μ A
mA
μ A
VREG5 INTERNAL REGULATOR
VVREG5
VREG5 voltage
IOUT = 0 A
4.8
5.0
5.2
V
VLD5
VLN5
Load regulation
Line regulation
0 mA ≤ IOUT ≤ 50 mA,
IOUT = 20 mA,
VIN = 12 V
7 V ≤ VIN ≤ 28 V
0.6% 2.5%
0.4% 2.0%
VTHL
VHYS(UV)
VTH(SW)
VHYS(SW)
UVLO threshold voltage
UVLO hysteresis
Switchover voltage
Switchover hysteresis
High to low
REG_IN voltage
3.45
100
4.2
50
3.65
200
4.5
3.85
300
4.8
250
V
mV
V
mV
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