The HXN-JSGa requires a minimum number of The HXN-JSGa is a step down switch mode
F e a t u r e s
Maximum Output Current: 2A Stable with Low ESR Output Ceramic
Capacitors
Thermal Shutdown Up to 92% Efficiency
Cycle-by-Cycle Over Current Protection Wide 5V to 16V Operating Input Range Programmable Under Voltage Lockout Output Adjustable from 1.2V to 16V Available in 8 pin SO package Frequency: up to 400kHz
D e s c r i p t i o n
converter. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation.
Current mode operation provides fast transient respon and eas loop stabilization.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
readily available standard external components.
A p p l i c a t i o n s
Pre-Regulator for Linear Regulators Distributed Power Systems Battery Charger
T y p i c a l A p p l i c a t i o n C i r c u i t
* The Output Voltage is t by R2 and R3: V OUT = 0.8V • [1 + (R2/ R3)].
The HXN-JSGa is guaranteed to meet perfo
P i n A s s i g n m e n t a n d D e s c r i p t i o n
A b s o l u t e M a x i m u m R
a t i n g s
用那么那么那么造句(N o t e
1)
VIN Pin Voltage…...……………………………………………………………………..……-0.3V ～ 20V SW Pin Voltage .………………………………………………………………………-0.3V ～ (V IN +0.3)V FB Pin Voltage……….………………………………………………………………..…….....-0.3V ～ 6V Operating Temperature Range (Note 2) ………………………………………………...-40 ℃～ +85℃
消炎止咳片说明书Storage Temperature Range ……..…………………………………………………….-65 ℃～ +150℃
Junction -40 ℃～ +125℃ Lead Temperature (Soldering 10, c.) (265)
Note 1: Stress listed as the above “Absolute Maximum Ratings” may cau permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may remain possibility to affe
精美图片人物>五四ct device reliability. Note 2: rmance specifications from 0°C to 70°C. Specifications over the –40°C
to 85°C operating temperature range are assured by design, characterization and correlation with statistical process
controls.
E l e c t r i c a l C h a r a c t e r
i s t i c s Operating Conditions: T A =25, V ℃IN =6V, unless otherwi specified.
SYMBOL PARAMETER CONDITIONS
MIN TYP MAX UNITS巧妙奔逃
神明是什么意思
V IN Input Voltage Range 5龙虾英语
16 V
V OUT
Output Voltage
1.2 16 V I Q Quiescent Current V OUT = 5V, I LOAD = 0A 800 μA I OFF Shutdown Current V EN = 0V, V IN = 12V
50
μA
V FB Feedback Voltage T A = 25℃
0.8 V f OSC Oscillator Frequency V OUT = 5V, I OUT = 100mA
400学校食堂标语
kHz
EFFI Efficiency
When connected to extra
components, V IN =9V, V OUT = 5V, I OUT =1A
89
%
T y p i c a l P e r f o r m a n c e C h a r a c t e r i s t i c s
Operating Conditions: T A =25, unless otherwi specified.℃
Output Noi （V IN=9V, V OUT=1.2V, I LOAD=0.5A）SW （V IN=9V, V OUT=1.2V, I LOAD=0.5A）
Main Supply Pin. The HXN-JSGa operates from a 5V to 16V unregulated input. It must be P i n F u n c t i o n s
N/C (Pin 1, 8): No Connect.
VIN (Pin 2): cloly decoupled to GND, with a 20μF or greater ceramic capacitor to prevent large voltage spikes from appearing at the input.
SW (Pin 3): Switch Node Connection to Inductor. This pin connects to the drains of the internal main and synchronous power MOSFET switches. GND (Pin 4): Ground Pin.
FB (Pin 5): Feedback Pin. Receive the feedback voltage from an external resistive divider across the output. In the adjustable version, the output voltage is fixed. The output voltage is t by R2 and R3: V OUT = 0.8V • [1 + (R2/R3)].
COMP (Pin 6): This node is the output of the transconductance error amplifier and the input to the current comparator. Frequency compensation is done at this node by connecting a ries R-C to ground.
EN (Pin 7): En Control Input. Forcing this pin above 1V enables the part. Forcing this pin below 0.7V can shuts down the device. Do not leave EN floating.
