參數(shù)資料
型號(hào)： PT6933N
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 6 A SWITCHING REGULATOR, 725 kHz SWITCHING FREQ-MAX, SMA23
封裝： ROHS COMPLIANT, SIP-23
文件頁(yè)數(shù)： 1/8頁(yè)
文件大小： 180K
代理商： PT6933N
For technical support and more information, see inside back cover or visit www.ti.com
PT6930 Series
Standard Application
8-A 5V-Input Dual-Output
Integrated Switching Regulator
Ordering Information
PT6931
o = +3.3 Volts
+2.5/1.8 Volts
PT6932
o = +3.3 Volts
+1.5/1.2 Volts
PT6933
o = +3.3 Volts
+1.8/1.2 Volts
C1/C2 =Req’d 330F electrolytic (See table footnotes)
C3 =Optional 100F electrolytic
Features
Dual Outputs:
+3.3V/2.5V
+3.3V/1.5V
+3.3V/1.8V
Adjustable Output Voltages
Remote Sense (both outputs)
Standby Function
Over-Temperature Protection
Soft-Start
Internal Sequencing
23-pin Excalibur Package
Pin Function
1Vo1 Sense
2
No Connect
3
STBY
4VIN
5VIN
6VIN
7
GND
8
GND
9
GND
10
GND
11
GND
12
Vo1
Pin
Function
13
Vo1
14
Vo1
15
Vo1
16
Vo1 Adjust
17
No Connect
18
Vo2
19
Vo2
20
Vo2
21
Vo2
22
Vo2 Sense
23
Vo2 Adjust*
Pin-Out Information
Description
The PT6930 Excalibur series of 8-A
dual-output ISRs are designed to power
DSP ICs. Both output voltages are inde-
pendently adjustable with external resistors.
The second output may also be set to an
alternate lower bus voltage with a simple
pin strap. Internal power sequencing of
both outputs, during both power-up and
power-down, meets the requirements of
most DSP chipsets.
PT6930
C
2
+
GND
V
IN
GND
4,5,6
7-11
12-15
18-21
16
C
1
22
C
3
+
23
1
3
STBY
Vo
2 Sense
Vo
1 Sense
Vo
1
Vo
2
PT Series Suffix (PT1234X)
Case/Pin
Configuration
Vertical Through-Hole
N
Horizontal Through-Hole
A
Horizontal Surface Mount
C
(For dimensions and PC board layout, see
Package Styles 1320 and 1330).
SLTS062B
(Revised 7/20/2001)
* Note:Vo1 & Vo2 Adjust can be pin-strapped to an
alternative lower bus voltage. Consult the voltage
adjustment application note for more information.
Specifications
Characteristics
PT6930 SERIES
(T
a= 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io1, Io2
Ta = +60°C, 200 LFM, pkg N
Vo1 =3.3V
0.1 (1)
—5.5 (2)
Vo2 =2.5V
0
—
2.2 (2)
Vo2 =1.8V
0
—
1.75 (2)
A
Vo2 =1.5V
0
—
1.45 (2)
Vo1 =1.2V
0
—
1.2 (2)
Ta = +25°C, natural convection
Vo1 =3.3V
0.1 (1)
—6.0 (2)
A
Vo2 =2.5V
0
—
2.2 (2)
Vo2 =1.8V
0
—
1.75 (2)
A
Vo2 =1.5V
0
—
1.45 (2)
Vo1 =1.2V
0
—
1.2 (2)
Input Voltage Range
Vin
0.1A
≤ Io ≤ Ityp
4.5
—
5.5
V
Output Voltage Tolerance
Vo
Vin = +5V, Io =Ityp, both outputs
Vo-0.1
—
Vo+0.1
V
0°C
≤ Ta ≤ +65°C
Line Regulation
Regline
4.5V
≤ Vin ≤ 5.5V, Io =Ityp
Vo1
—
±7
±17
V
Vo2
—
±7
±13
Load Regulation
Regload
Vin = +5V, 0.1 ≤ Io ≤ Ityp
Vo1
—
±17
±33
mV
Vo2
—
±4
±10
Vo Ripple/Noise
Vn
Vin = +5V, Io =Ityp
Vo1
—50
—
mV
Vo2
—25
—
Transient Response
ttr
Io step between 0.5xItyp and Ityp
—
25
—
Sec
with C2 = 330F
Vos
Vo over/undershoot
Vo1
—60
—
mV
Vo2
—60
—
Efficiency
η
Vin = +5V, Io =4A total
—
75
—
%
Switching Frequency
o
4.5V
≤ Vin ≤5.5V
475
600
725
kHz
0.1A
≤ Io ≤ Ityp
(Continued)
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