參數(shù)資料
型號: MAX1510
廠商: Maxim Integrated Products, Inc.
英文描述: Low-Voltage DDR Linear Regulator
中文描述: 低電壓、DDR線性穩(wěn)壓器
文件頁數(shù): 7/13頁
文件大?。?/td> 415K
代理商: MAX1510
M
Low-Voltage DDR Linear Regulator
_______________________________________________________________________________________
7
Detailed Description
The MAX1510 is a low-voltage, low-dropout DDR termi-
nation linear regulator with an external bias supply
input and a buffered reference output (see Figures 1
and 2). V
CC
is powered by a 2.7V to 3.6V supply that is
commonly available in laptop and desktop computers.
The 3.3V bias supply drives the gate of the internal
pass transistor, while a lower voltage input at the drain
of the transistor (IN) is regulated to provide V
OUT
. By
using separate bias and power inputs, the MAX1510
can drive an n-channel high-side MOSFET and use a
lower input voltage to provide better efficiency.
The MAX1510 regulates its output voltage to the volt-
age at REFIN. When used in DDR applications as a
termination supply, the MAX1510 delivers 1.25V or
0.9V at 3A peak (typ) from an input voltage of 1.1V to
3.6V. The MAX1510 sinks up to 3A peak (typ) as
required in a termination supply. The MAX1510 pro-
vides shoot-through protection, ensuring that the
source and sink MOSFETs do not conduct at the same
time, yet produces a fast source-to-sink load transient.
OUT
IN
AGND
PGND
V
OUT
= V
TT
= V
DDQ
/ 2
C
IN2
10
μ
F
C
OUT1
100
μ
F
C1
1.0
μ
F
R3
100k
OFF
V
DDQ
ON
R2
10k
3.3V BIAS
SUPPLY
V
IN
=
1.1V TO 3.6V
POWER-GOOD
R1
10k
V
REFOUT
= V
TTR
C
REFOUT
0.33
μ
F
REFOUT
MAX1510
V
CC
PGOOD
SHDN
REFIN
C
REFIN
1000pF
OUTS
Figure 1. Standard Application Circuit
PIN
NAME
FUNCTION
1
REFOUT
Buffered Reference Output. The output of the unity-gain reference input buffer sources and sinks over
5mA. Bypass REFOUT to AGND with a 0.33μF or greater ceramic capacitor.
2
V
CC
Analog Supply Input. Connect to the system supply voltage (+3.3V). Bypass V
CC
to AGND with a 1μF or
greater ceramic capacitor.
3
4
AGND
REFIN
Analog Ground. Connect the backside pad to AGND.
External Reference Input. REFIN sets the output regulation voltage (V
OUTS
= V
REFIN
).
5
PGOOD
Open-Drain Power-Good Output. PGOOD is low when the output voltage is more than 150mV (typ) above
or below the regulation point, during soft-start, and when shut down. 2ms after the output reaches the
regulation voltage during startup, PGOOD becomes high impedance.
6
OUTS
Output Sense Input. The OUTS regulation level is set by the voltage at REFIN. Connect OUTS to the
remote DDR termination bypass capacitors. OUTS is internally connected to OUT through a 12k
resistor.
7
SHDN
Shutdown Control Input. Connect to V
CC
for normal operation. Connect to analog ground to shut down the
linear regulator. The reference buffer remains active in shutdown.
8
9
10
PGND
OUT
IN
Power Ground. Internally connected to the output sink MOSFET.
Output of the Linear Regulator
Power Input. Internally connected to the output source MOSFET.
Pin Description
相關PDF資料
PDF描述
MAX1510ETB Low-Voltage DDR Linear Regulator
MAX1512ETA 16-Bit Transceivers With Parity Generators / Checkers And 3-State Outputs 56-SSOP -40 to 85
MAX1512 EEPROM-Programmable TFT VCOM Calibrator
MAX1515 Low-Voltage, Internal Switch, Step-Down/DDR Regulator
MAX1515ETG Low-Voltage, Internal Switch, Step-Down/DDR Regulator
相關代理商/技術參數(shù)
參數(shù)描述
MAX15100EWL+T 功能描述:線性穩(wěn)壓器 - 標準 Baby Phase Regelator For Notbook Ap RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L
MAX15101AWL+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX15101AWL+T 制造商:Maxim Integrated Products 功能描述:- Tape and Reel
MAX15101EWL+ 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX15101EWL+T 功能描述:低壓差穩(wěn)壓器 - LDO 2A Sync Step-Down Switch Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓(最大值):307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20