Datasheet Linear Technology LT1616 — 数据表

制造商	Linear Technology
系列	LT1616

SOT-23中的600mA，1.4MHz降压开关稳压器

数据表

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PDF, 288 Kb, 语言: en, 文件上传: Sep 3, 2017, 页数: 16
600mA, 1.4MHz Step-Down Switching Regulator in SOT-23

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	LT1616ES6#PBF	LT1616ES6#TRMPBF	LT1616ES6#TRPBF
N	1	2	3
Package	SOT-23 包装外形图	SOT-23 包装外形图	SOT-23 包装外形图
Package Code	S6	S6	S6
Package Index	05-08-1636	05-08-1636	05-08-1636
Pin Count	6	6	6

参数化

Parameters / Models	LT1616ES6#PBF	LT1616ES6#TRMPBF	LT1616ES6#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Design Tools	LTspice File	LTspice File	LTspice File
Export Control	no	no	no
Frequency, kHz	1400	1400	1400
Integrated Inductor	no	no	no
Ishutdown, µA	1	1	1
Isupply, mA	1.9	1.9	1.9
Max Phases	1	1	1
Monolithic	yes	yes	yes
Number of Outputs	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85
Output Current, A	0.6	0.6	0.6
Polyphase	no	no	no
Switch Current, A	0.85	0.85	0.85
Synchronous	no	no	no
Topology	Buck	Buck	Buck
Vin Max, V	25	25	25
Vin Min, V	3.6	3.6	3.6
Vout Max, V	20	20	20
Vout Maximum	.80VIN	.80VIN	.80VIN
Vout Min, V	1.25	1.25	1.25
Vref Accuracy Over Temp, %	2	2	2

生态计划

	LT1616ES6#PBF	LT1616ES6#TRMPBF	LT1616ES6#TRPBF
RoHS	Compliant	Compliant	Compliant

设计须知

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Tiny Buck Regulator Accepts Inputs from 3.6V to 25V and Eliminates Heat Sink &mdash DN268
PDF, 95 Kb, 档案已发布: Sep 3, 2001
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advertisement Tiny Buck Regulator Accepts Inputs from 3.6V to 25V
and Eliminates Heat Sink вЂ“ Design Note 268
Jeff Witt An external resistor divider programs the output voltage to any value above the partвЂ™s 1.25V reference. The
shutdown mode reduces the supply current to 1ОјA and
disconnects the load from the input supply.
An internal 3.4V undervoltage lockout prevents switching at low input supply. The LT1616 will also withstand
a shorted output. A fast current limit protects the circuit
in overload and limits output power; when the output
voltage is pulled to ground by a hard short, the LT1616
reduces its operating frequency to limit dissipation and
peak switch current. 5 VIN D2 1 BOOST C3
L1
0.01ОјF 10ОјH LT1616
OFF ON 4 SHDN
GND
2 6 SW
FB R1
16.5k 3 C1
1ОјF VOUT
3.3V
300mA: VIN = 4.5V TO 25V
400mA: VIN = 4.7V TO 25V D1 C2
10ОјF R2 …

文章

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Tiny SOT-23 Buck Regulator Accepts Inputs from 3.6V to 25V &mdash LT Journal
PDF, 363 Kb, 档案已发布: Sep 1, 2000
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DESIGN FEATURES Tiny SOT-23 Buck Regulator Accepts
Inputs from 3.6V to 25V
by Jeff Witt Complete Switcher in SOT-23
Results in Compact Solution
Several features of the LT1616 enable
this combination of small size and
large voltage range. The high (1.4MHz)
switching frequency allows the use of
small inductors and capacitors. The
current mode control circuit with its
internal loop compensation eliminates
additional components and handles
a wide variety of output capacitors,
including ceramic capacitors. The
internal NPN power switch drops just
200mV at 300mA. In order to fully
saturate this switch, the LT1616 generates its own bias supply above the input voltage using an external diode
and capacitor tied to its BOOST pin.
An external resistor divider programs the output voltage to any value
above the partвЂ™s 1.25V reference. The
operating current is 2mA. The shutdown mode reduces the supply
current to 1ВµA and disconnects the
load from the input supply. …

模型线

系列: LT1616 (3)

LT1616ES6#PBF LT1616ES6#TRMPBF LT1616ES6#TRPBF

制造商分类

Power Management > Switching Regulator > Step-Down (Buck) Regulators > Internal Power Switch Buck

相关刊物

数据表 Datasheet Analog Devices LT1616

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