參數(shù)資料
型號(hào)： AS1326B-BTDT
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： DC/DC變換器
英文描述： Adj. 650mA, 1MHz, Boost; Package Type: TDFN(3x3)-10; Miscellaneous: Logic-High On
中文描述： 高電流0.8A的DC - DC升壓轉(zhuǎn)換器
封裝： TDFN(3x3)-10
文件頁(yè)數(shù)： 2/18頁(yè)
文件大小： 1108K
代理商： AS1326B-BTDT
www.austriamicrosystems.com
Revision 1.05
2 - 18
AS1326
Datasheet - Pinout
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 2. Pin Descriptions
Pin Number
Pin Name
Description
1
ISET
N-Channel Current-Limit Control.
For maximum current limit, connect to pin REF.
To reduce current, supply a voltage between pin REF and GND using a resistive
voltage-divider. If soft-start is desired, connect a capacitor from this pin to GND.
1.250V Internal Reference Bypass.
Connect a 10nF ceramic bypass capacitor to
GND. Up to 50μA of external load current is allowed.
Ground.
Connect this pin to PGND using a short trace. The exposed pad can be
used for this routing.
DC-DC Converter Feedback Input.
To set fixed output voltage of +3.3V, connect
this pin to GND. For adjustable output of 2.5 to 5.0V, connect to a resistor-divider
network from pin OUT to GND. The set point for this pin is 1.24V.
IC Power, Supplied from the Output.
Bypass this pin to GND with a 330nF
ceramic capacitor, and connect to POUT with a 10
Ω
series resistor
(see Figure 19
on page 11)
.
Clock Input for the DC-DC Converter.
This pin is also used to program the
operational mode as follows:
0 = Normal operation – the AS1326A operates at a fixed frequency, and switches
into automatic powersave operation if the load is minimized.
1 = Forced-PWM mode – the AS1326A operates in low-noise, constant-frequency
mode at all loads.
Clocked = Forced-PWM mode with the internal oscillator synchronized to this pin in
500 to 1200kHz range.
N-Channel Power MOSFET Switch Source
Inductor Connection
Power Output.
P-channel synchronous rectifier source.
Enable Low (AS1326A
only). Must be connected to GND for normal operation.
0 = The AS1326A is on.
1 = The AS1326A is off.
Enable High (AS1326B
only). Must be connected to OUT for normal operation.
0 = The AS1326B is off.
1 = The AS1326B is on.
Exposed Pad.
This pad is not connected internally. It can be used for ground
connection between GND and PGND.
2
REF
3
GND
4
FB
5
OUT
6
CLK/SEL
7
8
9
PGND
LX
POUT
10
ONN
ON
11
NC
AS1326A/
AS1326B
4
FB
3
GND
2
REF
1
ISET
6 CLK/SEL
7 PGND
9 POUT
10 ONN/ON
5
OUT
8 LX
11
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AS1326-EB 制造商:ams 功能描述:AS1326 Evaluation Board
AS1328A-BQFT-12 功能描述:IC REG BUCK SYNC 1.2V 3A 16-TQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開(kāi)關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP
AS1328A-BQFT-15 功能描述:IC REG BUCK SYNC 1.5V 3A 16-TQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開(kāi)關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP
AS1328A-BQFT-18 功能描述:IC REG BUCK SYNC 1.8V 3A 16-TQFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開(kāi)關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:5 V ~ 25 V 輸入電壓:2.3 V ~ 5.5 V PWM 型:電流模式 頻率 - 開(kāi)關(guān):600kHz，1.2MHz 電流 - 輸出:1A 同步整流器:無(wú) 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 包裝:管件 供應(yīng)商設(shè)備封裝:8-MSOP
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