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參數(shù)資料
| 型號： | MAX767TEAP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5V-to-3.3V, Synchronous, Step-Down Power-Supply Controller |
| 中文描述： | SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | PLASTIC, SSOP-20 |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 192K |
| 代理商： | MAX767TEAP |
M
5V-to-3.3V, S ync hronous, S tep-Down
Power-S upply Controller
_______________________________________________________________________________________
5
______________________________________________________________Pin Desc ription
16
NAME
FUNCTION
1
CS
Current-sense input: +100mV = nominal current-limit level referred to FB.
2
SS
Soft-start input. Ramp time to full current limit is 1ms/nF of capacitance to GND.
ON/O——control input to disable the PWM. Tie directly to V
CC
for automatic start-up.
3
ON
PIN
DL
Gate-drive output for the low-side synchronous rectifier MOSFET
4–7, 11
GND
Low-current analog ground. Feedback reference point for the output.
8
REF
3.3V internal reference output. Bypass to GND with 0.22μF minimum capacitor.
9
SYNC
Oscillator control/synchronization input. Connect to V
CC
or GND for 200kHz; connect to REF for
300kHz. For external clock synchronization in the 240kHz to 350kHz range, a high-to-low transition
causes a new cycle to start.
10, 14, 15
V
CC
Supply voltage input: 4.5V to 5.5V
17
BST
Boost capacitor connection (0.1μF)
12
N.C.
No internal connection
13
PGND
Power ground
18
LX
Inductor connection. Can swing 2V below GND without latchup.
19
DH
Gate-drive output for the high-side MOSFET
20
FB
Feedback and current-sense input for the PWM
OUTPUT
3.3V
LX
DL
GND
SS
MAX767
ON
VCC
REF
L1
BST
DH
D2
PGND
CS
FB
SHUTDOWN
ON/OFF
N1
N2
D1
SMALL-
SIGNAL
SCHOTTKY
C1
R1
C3
0.1
μ
F
C2
C6
0.22
μ
F
C5
(OPTIONAL)
SYNC
R2
10
INPUT
4.5V TO 5.5V
0.01
μ
F
C4
4.7
μ
F
Figure 1. Standard Application Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MAX767TEAP+ | 制造商:Maxim Integrated Products 功能描述:5V-TO-3.3V STEP-DOWN POWER-SUPPLY CONTROLLER - Bulk |
| MAX767TEAP-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX767TEVKIT-SO | 功能描述:DC/DC 開關(guān)控制器 NULL RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX768EEE | 功能描述:電荷泵 Regulated Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX768EEE+ | 功能描述:電荷泵 Charge Pump Dl RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 輸出電壓:- 1.5 V to - 5.5 V, 3 V to 11 V 輸出電流:100 mA 電源電流:1 mA 最大工作溫度:+ 70 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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