參數(shù)資料
型號： PT6905
英文描述： (-)5.2Vout 12W 3.3V-Input Adjustable Plus to Minus Voltage Converter
中文描述： （ - ）5.2Vout 12瓦3.3V的輸入可調加到負電壓轉換器
文件頁數(shù)： 1/5頁
文件大?。?/td> 123K
代理商： PT6905
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PT6900 Series
Standard Application
Ordering Information
+5V Input
PT6901
J
PT6904
K
= –2.0V
PT6902
J
PT6905
K
= –5.2V
PT6903
K
+3.3V Input
V
out
= –1.5V
Cin
= Required 330μF electrolytic
+5V/+3.3V Input Voltage
Negative Output
Remote Sense
Adjustable Output Voltage
23-pin SIP Package
The PT6900 is a series of high-
performance ISRs, that provide plus to
minus voltage conversion, up to 12 watt
in a 23-pin SIP package.
Pin Function
1
Do not connect
2
V
out
Adjust
3
V
in
4
V
in
5
V
in
6
V
in
7
V
in
8
Remote Sense GND
9
GND
10
GND
11
GND
12
GND
Pin
13
14
15
16
17
18
19
20
21
22
23
Function
GND
GND
GND
V
out
V
out
V
out
V
out
V
out
V
out
Remote Sense V
out
Do not connect
Pin-Out Information
The PT6900 is designed to supply
regulated negative voltages for power-
ing the latest ECL (-5.2V) and GaAs
(-2.0V) ICs used in high-speed fiber
optic communications. A 330μF elec-
trolytic capacitor is required on the
input and output for proper operation.
Please note that this product is not
short-circuit protected.
(For dimensions and PC board layout,
see Package Styles 1100 and 1110.)
Cout
+
Cin
PT6900
16-21
9-15
3-7
2
V
ADJ
-V
OUT
GND
GND
+V
IN
+
22
Remote Sense
Remote Sense
8
PT Series Suffix
(PT1234
X
)
Case/Pin
Configuration
Vertical Through-Hole
Horizontal Through-Hole
Horizontal Surface Mount
N
A
C
SLTS041A
(Revised 6/30/2000)
Specifications
Characteristics
(T
a
= 25°C unless noted)
Output Current
PT6900 SERIES
Typ
Symbols
I
o
Conditions
T
a
=
+25°C, natural convection
V
in
=5.0V
Min
Max
Units
V
o
= –2.0V / –1.5V
V
o
= –5.2V
V
o
= –2.0V
V
o
= –5.2V
PT6901 PT6902/PT6903
PT6904/PT6905
0.1
(1)
0.1
(1)
0.1
(1)
0.1
(1)
4.5
3.1
V
o
– 0.05
—
—
—
—
—
—
—
6.0
(2)
3.5
(2)
5.0
(2)
2.5
(2)
5.5
3.6
V
o
+ 0.05
A
V
in
=3.3V
A
Input Voltage Range
0.1A
≤
I
o
≤
I
max
V
V
Output Voltage Tolerance
V
o
Nominal V
, I
= I
max
0°C
≤
T
a
≤
+60°C
Pin 14 to V
o
or GND
Output Adjust Range
V
o
V
o
= –2.0V
V
o
= –5.2V
V
o
= –1.5V
–1.4
–2.7
–1.2
—
—
—
—
—
—
—
—
—
—
—
500
0
—
—
—
±0.5
±0.5
40
50
200
200
65
70
77
67
75
—
—
–4.4
–6.5
–3.4
±1.0
±1.0
—
—
—
—
—
—
—
—
—
600
+85
(2)
V
Line Regulation
Load Regulation
V
o
Ripple/Noise
Reg
line
Reg
load
V
n
Over V
in
range, I
o
=I
max
V
in
=V
nom
, 0.1
≤
I
o
≤
I
max
V
in
= V
nom
, I
o
=I
max
%
%
V
o
= –1.5V / –2.0V
V
o
= –5.2V
mV
Transient Response
with C
out
= 330μF
Efficiency
t
tr
V
os
η
I
o
step between 0.5xI
max
and I
max
V
o
over/undershoot
V
in
=+5V, I
o
=0.5xI
max
μSec
mV
V
o
= –1.5V
V
o
= –2.0V
V
o
= –5.2V
Vo = –2.0V
Vo = –5.2V
%
V
in
= +3.3V, I
o
=0.5xI
max
%
Switching Frequency
Absolute Maximum
Operating Temperature Range
Storage Temperature
Weight
o
T
a
Over V
in
and I
o
ranges
Over V
in
Range
kHz
°C
T
s
—
-40
—
—
28/33
+125
—
°C
grams
Vertical/Horizontal
Notes:
(1) ISR-will operate down to no load with reduced specifications.
(2) See SOA curves or contact the factory for the approrpiate derating.
12 Watt 5V/3.3V Input
Plus to Minus Voltage Converter
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