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参数资料
| 型号： | PT7701N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 15 A SWITCHING REGULATOR, 750 kHz SWITCHING FREQ-MAX, SMA27 |
| 封装： | SIP-27 |
| 文件页数： | 1/2页 |
| 文件大小： | 142K |
| 代理商： | PT7701N |
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 USA (800) 531-5782 Fax: (630) 393-6902 http://www.ti.com/powertrends
Series
For assistance or to order, call (800) 531-5782
Standard Application
Cin = Required 330F electrolytic (x4)
Cout = Required 330F electrolytic (x4)
L1
= Required 1H input choke
15 AMP HIGH-PERFORMANCE
“BIG HAMMER” PROGRAMMABLE ISR
PT7700
Ordering Information
PT7701
= 2 to 3.5 Volts
PT7702
= 1.3 to 2 Volts
Pin-Out Information
Pin
Function
1
VID0
2
VID1
3
VID2
4
VID3
5
STBY* - Stand-by
6
Vin
7
Vin
8
Vin
9
Vin
Pin
Function
10
Vin
11
Vin
12
Remote Sense Gnd
13
GND
14
GND
15
GND
16
GND
17
GND
18
GND
The PT7700 is a new series of high-
performance, 15 Amp Integrated Switching
Regulators (ISRs) housed in a 27-pin SIP
package. The 15A capability allows easy
integration of the latest high-speed, low-
voltage Ps and bus drivers into existing 5V
systems.
The PT7700 series has been designed to
work in parallel with one or more of the
PT7749 - 15A current boosters for
increased Iout in increments of 15A.
Two products are offered in the series
with different output voltage ranges that are
easily programmed with a 4 bit input
compatible with Intel’s Pentium Pro
Processor. A differential remote sense is
also provided which automatically
compensates for any voltage drop from the
ISR to the load.
An input filter and 1200F of output
capacitance are required for proper
operation.
PT7700
7 - 11
13 - 19
20 - 25
27
V
IN
GND
+
1H
GND
V
OUT
C
OUT
+
C
IN
+
12
26
1
L1
SYNC OUT
LOAD
REMOTE SENSE (+)
REMOTE SENSE (-)
VID0
VID1
VID2
VID3
PROGRAMMING PINS
2
3
4
STBY*
5
Programming Information
PT7701 PT7702
VID3 VID2 VID1 VID0
Vout
1
2.0V
1.30V
1
0
2.1V
1.35V
1
0
1
2.2V
1.40V
1
0
2.3V
1.45V
1
0
1
2.4V
1.50V
1
0
1
0
2.5V
1.55V
1
0
1
2.6V
1.60V
1
0
2.7V
1.65V
0
1
2.8V
1.70V
0
1
0
2.9V
1.75V
0
1
0
1
3.0V
1.80V
0
1
0
3.1V
1.85V
0
1
3.2V
1.90V
0
1
0
3.3V
1.95V
0
1
3.4V
2.00V
0
3.5V
2.05V
Note:
Logic 0 = Pin 12 (remote sense gnd) potential
Logic 1 = Open circuit (no pull-up resistors)
Pin
Function
19
GND
20
Vout
21
Vout
22
Vout
23
Vout
24
Vout
25
Vout
26
Remote Sense Vout
27
Sync Out
Specifications
Characteristics
PT7700 SERIES
(T
A = 25°C unless noted)
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Io
4.5V
≤ Vin ≤ 5.5V
0.1 (1)
—15 (2)
ADC
Input Voltage Range
Vin
0.1A
≤ Io ≤ 15A
4.5 (3)
—
5.5
VDC
Static Voltage Tolerance
Vo
Vin = +5V, Io = 15A
Vo- 0.05
—
Vo+0.05
VDC
0°C
≤ Ta ≤ +55°C
Line Regulation
Regline
4.5V
≤ Vin ≤ 5.5V, Io = 15A
—
±10
—
mV
Load Regulation
Regload
Vin = +5V, 0.1
≤ Io ≤ 15A
—
±10
—
mV
Vo Ripple/Noise pk-pk
Vn
Vin = +5V, Io = 15A
—
50
—
mV
Transient Response
ttr
Io step between 7.5A and 15A
—
100
—
Sec
with Cout = 1200F
Vos
Vo over/undershoot
—
200
—
mV
Efficiency
η
Vin = +5V, Io = 10A
Vo = 3.3V
—
89
—
%
Vo = 2.9V
—
87
—
%
Vo = 2.5V
—
85
—
%
Vo = 1.8V
—
79
—
%
Vo = 1.5V
—
77
—
%
Switching Frequency
o
4.5V
≤ Vin ≤ 5.5V
650
700
750
kHz
0.1A
≤ Io ≤ 15A
Operating Temperature
Ta
Forced Air Flow = 200 LFM
0
—
+55
°C
Over Vin and Io Ranges
Storage Temperature
Ts
—
-40
—
+125
°C
Weight
—
TBD
—
grams
Relative Humidity
—
Non-condensing
0
—
95
%
(1) ISR will operate down to no load with reduced specifications Please note that this product is not short-circuit protected.
(2) The PT7700 series can be easily paralleled with one or more of the PT7749 slave modules to provide increased output current in increments of 15A.
Please contact Power Trends for the appropriate application note.
(3) The minimum input voltage is 4.5V or Vout+1.2V, whichever is greater.
Output Capacitors: The PT7700 series requires A minimum output capacitance of 1200F for proper operation. To reduce ESR, Power Trends recommends using four 330F
electrolytic capacitors in parallel.
Input Filter: An input filter is required for all applications. The input inductor must be sized to handle 15ADC with a typical value of 1H. The input capacitance must be rated
for 14Arms of ripple current. Power Trends recommends using four Sanyo OSCON style capacitors with a 3.5Arms ripple current rating in parallel (p/n 6SA330M).
Single-Device: +5V input
4-bit Programmable:
2V to 3.5V@15A or
1.3V to 2V @ 15A output
High Efficiency
Input Voltage Range:
4.5V to 5.5V
Differential Remote Sense
27-pin SIP Package:
V = 1.0”(H) x 3”(L) x 0.55”(W)
H = 0.55”(H) x 3”(L) x 1.5”(W)
Parallelable with PT7749
15A “Current Boosters”
Features
N = Vertical through-hole
A = Horizontal through-hole
C = Horizontal surface-mount
For STBY* pin; open = output enabled; ground = output disabled.
SLTS077
Revised 5/31/00
相关PDF资料 |
PDF描述 |
|---|---|
| PT7702A | SWITCHING REGULATOR, SIP27 |
| PT7702N | SWITCHING REGULATOR, SIP27 |
| PT7701C | SWITCHING REGULATOR, SSO27 |
| PT7702C | SWITCHING REGULATOR, SSO27 |
| PT7701A | SWITCHING REGULATOR, SIP27 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT7702 | 制造商:TI 制造商全称:Texas Instruments 功能描述:15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR |
| PT7702A | 制造商:TI 制造商全称:Texas Instruments 功能描述:15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR |
| PT7702C | 功能描述:开关变换器、稳压器与控制器 PROGRAMMABLE ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT7702N | 制造商:TI 制造商全称:Texas Instruments 功能描述:15 AMP HIGH-PERFORMANCE BIG HAMMER PROGRAMMABLE ISR |
| PT7705 | 制造商:TI 制造商全称:Texas Instruments 功能描述:18 AMP “BIG-HAMMER” PROGRAMMABLE INTEGRATED SWITCHING REGULATOR |
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