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参数资料
| 型号： | MAX1710EEG |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs |
| 中文描述： | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, QSOP-24 |
| 文件页数： | 10/28页 |
| 文件大小： | 299K |
| 代理商： | MAX1710EEG |
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M
while also avoiding the problems caused by widely vary-
ing switching frequencies in conventional constant-on-
time and constant-off-time PWM schemes.
+5V Bias Supply (V
CC
and V
DD
)
The MAX1710/MAX1711 requires an external +5V bias
supply in addition to the battery. Typically, this +5V bias
supply is the notebook’s 95% efficient 5V system supply.
Keeping the bias supply external to the IC improves effi-
ciency and eliminates the cost associated with the +5V
linear regulator that would otherwise be needed to sup-
ply the PWM circuit and gate drivers. If stand-alone
capability is needed, the +5V supply can be generated
with an external linear regulator such as the MAX1615.
The battery and +5V bias inputs can be tied together if
the input source is a fixed 4.5V to 5.5V supply. If the +5V
bias supply is powered up prior to the battery supply, the
enable signal (
SHDN
) must be delayed until the battery
voltage is present in order to ensure start-up. The +5V
bias supply must provide V
CC
and gate-drive power, so
the maximum current drawn is:
I
BIAS
= I
CC
+ f
·
(Q
G1
+ Q
G2
) = 15mA to 30mA (typ)
High-S peed, Digitally Adjusted
S tep-Down Controllers for Notebook CPUs
10
______________________________________________________________________________________
V
CC
V
BATT
4.5V TO28V
+5V
BIAS SUPPLY
C2
3 x 470
μ
F
KEMET T510
PANASONIC
ETQP6F2R0HFA
L1
2
μ
H
POWER-GOOD
INDICATOR
* MAX1710 ONLY
** MAX1711 ONLY
V
OUT
1.25V TO2V AT 7A (MAX1710)
0.925V TO2V AT 7A (MAX1711)
D3
(OPTIONAL OVP
REVERSE-POLARITY
CLAMP)
SHDN
V+
22
1
2
21
20
19
18
17
24
23
13
14
3
4
11
R4
1k
12
7
15
D2
CMPSH-3
C6
1
μ
F
C7
0.1
μ
F
C4
1
μ
F
C3
470pF
TOV
CC
Q1
D1
R2
100k
Q2
C5
1
μ
F
R1
20
C1 3 x 10
μ
F/30V
SKIP
D0
D1
D2
DAC
INPUTS
ON/OFF
CONTROL
LOW-NOISE
CONTROL
DL
LX
BST
DH
PGND
FB
FBS
GNDS
Q1 = IRF7807
Q2 = IRF7805
D1, D3 = MBRS130T3 (OPTIONAL)
C1 = Sanyo OS-CON (30SC10M)
PGOOD
V
DD
MAX1710
MAX1711
8
9
5
6
16
+5V
10
D3
16
D4**
TON
REF
CC
GND
R3
(OPTIONAL)
ILIM
OVP*
Figure 1. Standard Application Circuit
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1711EEG | High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs |
| MAX1711 | High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUs |
| MAX1714 | High-Speed Step-Down Controller for Notebook Computers |
| MAX1714AEEP | High-Speed Step-Down Controller for Notebook Computers |
| MAX1714BEEE | High-Speed Step-Down Controller for Notebook Computers |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1710EEG.TG068 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1710EEG.TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1710EEG+ | 制造商:Maxim Integrated Products 功能描述:LDO CNTRLR STDN 1.25V TO 2V 24QSOP - Rail/Tube |
| MAX1710EEG+T | 制造商:Maxim Integrated Products 功能描述:LDO CNTRLR STDN 1.25V TO 2V 24QSOP - Tape and Reel |
| MAX1710EEG-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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