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參數資料
| 型號： | PT6646M |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PSMA14 |
| 封裝： | SIP-14 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 412K |
| 代理商： | PT6646M |
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Wide Input Voltage Range:
+8V to +25V
Negative Output:
–2.5V/4A to –15V/1.5A
Adjustable Output Voltage
85% Efficiency
Remote Sense Capability
24W 12V Input Positive to Negative
Voltage Converter
PT6640 Series
Standard Application
C1 = Required 560F electrolytic
C2 = Required 330F electrolytic
PT6640
4,5,6
7,8,9,10
11,12,13
V
IN
COM
-V
OUT
C
2
C
1
+
1
REMOTE SENSE
LOAD
+
Ordering Information
PT6641
= –3.3 Volts
PT6642
= –5.0 Volts
PT6643
= –12.0 Volts
PT6644
= –9.0 Volts
PT6645
= –15.0 Volts
PT6646
= –2.5 Volts
PT Series Suffix (PT1234X)
Case/Pin
Heat
Configuration
Spreader
Vertical Through-Hole
P
Horizontal Through-Hole
D
Horizontal Surface Mount
E
1
Remote Sense
2
Do Not Connect
3
Do Not Connect
4+Vin
5+Vin
6+Vin
7
–Vout
8
–Vout
9
–Vout
10
–Vout
11
GND
12
GND
13
GND
14
Vout Adjust
Pin-Out Information
The PT6640 series is a positive
input to negative output line of
Integrated Switching Regulators
(ISRs). Designed for general purpose
applications, the PT6640 series deliv-
ers a negative output voltage at up
to 24W. The PT6640 is packaged in
a 14-Pin SIP (Single In-line Package)
and is available in a surface-mount
configuration.
Note: Back surface
of product is
conducting metal
Pkg Style 400
SLTS037A
(Revised 6/30/2000)
PT6640
Specifications
Characteristics
PT6640 SERIES
(T
a = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
Ta = 60°C, 200 LFM, pkg P
0.1
—
(See Note 2)
Ta = 25°C, natural convection Vo≤ – 5.0V
0.1
—
4.0
Vo= – 9.0V
0.1
—
2.5
A
Vo= – 12.0V
0.1
—
2.0
Vo= – 15.0V
0.1
—
1.5
Input Voltage Range
Vin
0.1A
≤ Io ≤ Io max
Vo = –2.5V/3.3V
+8
—
+27
Vo = – 5.0V
+8
—
+25
Vo = – 9.0V
+8
—
+21
V
Vo = – 12.0V
+8
—
+18
Vo = – 15.0V
+8
—
+15
Output Voltage Tolerance
Vo
Over Vin range
Ta = -40°C to +65°C
Vo-0.1
—
Vo+0.1
V
Output Voltage Adjust Range
Voadj
Pin 14 to Vo or ground
Vo = – 2.5V
–1.8
—
–4.3
Vo = – 3.3V
–2.2
—
–4.7
Vo = – 5.0V
–3.0
—
–6.5
V
Vo = – 9.0V
–6.0
—
–10.2
Vo = –12.0V
–9.0
—
–13.6
Vo = –15.0V
–10.0
—
–17.0
Line Regulation
Regline
+9V
≤Vin≤+Vinmax, Io = Iomax
—
±0.5
±1.0
%Vo
Load Regulation
Regload
Vin = +12V, 0.1≤ Io≤Iomax
—
±0.5
±1.0
%Vo
Vo Ripple/Noise
Vn
Vin = +12V, Io = Iomax
—
3.0
—
%Vo
Transient Response
ttr
Io step between 0.5xIomax and Iomax
—
200
—
Sec
with C2 = 330F
Vos
Vo over/undershoot
—
100
—
mV
Efficiency
η
Vin = +12V, Io = 0.5x Iomax
Vo = – 2.5V
—
75
—
Vo = – 3.3V
—
79
—
Vo = – 5.0V
—
83
—
%
Vo = –9.0/12.0V
—
85
—
Vo = –15.0V
—
84
—
Vin = +12V, Io = Iomax
Vo = – 2.5V
—
74
—
Vo = – 3.3V
—
77
—
%
Vo = – 5.0V
—
80
—
Vo = –9.0/12.0/15.0V
—
84
—
Continued
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| PT6646P | 功能描述:直流/直流開關轉換器 -2.5V 4A Pos to Neg Voltage Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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