參數資料
型號: TPS6735Y
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING REGULATOR, 160 kHz SWITCHING FREQ-MAX, UUC12
封裝: DIE-12
文件頁數: 4/18頁
文件大?。?/td> 360K
代理商: TPS6735Y
TPS6735
FIXED NEGATIVE 5V 200mA INVERTING DC/DC CONVERTER
SLVS141A JULY 1996 REVISED JANUARY 1997
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
APPLICATION INFORMATION
output filter capacitor
A low equivalent series resistance (ESR) output filter capacitor is necessary to minimize the output-ripple
voltage. An ESR of 100 m
limits the output ripple to 90 mV or less for output loads up to 200 mA.
rectifier
A Schottky diode or high-speed silicon rectifier should be used with a maximum continuous current rating of
1 A for operation up to full load (200 mA).
output ripple filtering
A low-pass filter may be added to the converter output to reduce the output voltage ripple (see Figure 15). The
LC filter has a cutoff frequency of 7.2 kHz. The inductor filter must have a low resistance to avoid large output
voltage drops. The output voltage ripple is reduced to 5 mV when the LC output filter is used. FB must be
connected to the output node before the connection for the low-pass filter.
printed circuit board layout
A ground plane is recommended in a printed circuit board (PCB) layout to ensure quiet operation. Attention
should be given to minimizing the lengths of the switching loops. Bypass capacitors should be placed as close
to the TPS6735 as possible to prevent instability and noise pickup. VCC and GND should be bypassed directly
with a 1-
F ceramic capacitor and a large bypass capacitor (e.g. 47 F) to maximize noise immunity. The
TPS6735 should not be used with IC sockets, wire-wrap prototype boards, or other constructions that are
susceptible to noise pick-up.
Optional
Low-Pass Output Filter
22
H
22
F
+
EN
REF
SS
COMP
VCC
OUT
GND
FB
TPS6735ID
1
2
3
4
8
7
6
5
C4
82 pF
C3
10
F
+
R1
130 k
R2
300 k
C1
47
F
R3
10 k
C5
1
F
L1
10
H
D1
1N5817
1 A, 20 V
+
C2
100
F/10 V
VO
VI
ENABLE
+
C6
0.1
F
Figure 15. Application Circuit
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相關代理商/技術參數
參數描述
TPS6755ID 功能描述:直流/直流開關調節(jié)器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6755IDG4 功能描述:直流/直流開關調節(jié)器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6755IDR 功能描述:直流/直流開關調節(jié)器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6755IDRG4 功能描述:直流/直流開關調節(jié)器 Adjustable Inverting DC-DC Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS6755IP 功能描述:直流/直流開關調節(jié)器 200mA 12V DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5