1 Absolute maximum rated of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Pulse input voltageVINP
(Positive pulse width 100ms，positive duty cycle 1%)…-20V～+60V；
Input voltageVIN ……………………………………………………  26V；
Output current limit …………………………………………………5A；
Storage temperature Tstg…………………………………… -65℃～150℃；
Lead welding temperature (10s)Th……………………………………300℃；
Junction temperatureTj ………………………………………………175℃；
Thermal resistanceR(th)J-C ………………………………………… 3.5℃/W；
Power consumption PD（Without heat sink）………………………… 300mW.

2 Recommended operating conditions of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Input voltage VIN…………………………………………………… (VOUT+1)V；
Operating temperature TC ……………………………………-55℃～125℃.

3 Package Specifications of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Unit:mm

Symbols	Data
	Minimum	Typical	Maxim
A	10.24	-	10.84
B	9.23	-	9.83
C	3.4	-	3.8
D	3.8	-	4.2
E	0.80	-	-
F	0.70	-	-
H	-	-	3.90
L	-	-	16.15
W	-	-	11.71

Fig 31  HSK5250 Package outline drawing

4 Pin Designations of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Bottom view

Pin	Symbol	Designation
1	VIN	Input
2	VOUT	Output
3	GND	GND

Fig 32  HSK5250 Pin Designations

5  Ordering Information of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Part number contains the use of the production process, serial number, output voltage, quality level and other information. As shown below：

6  Technical Specifications of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Table 11  HSK5250-3.3H Electrical characteristics

Items	Symbol	Condition (Unless otherwise specified， -55℃≤TC≤125℃)	A Group	Limited value		Unit
				Min	Max
Output voltage	VOUT	IOUT =10mA, VIN=4.3V	1,2,3	3.234	3.366	V
Input and output voltage difference	VDO	TA=25℃；△VOUT=-1%；IOUT=250mA	1	－	200	mV
		TA=25℃；△VOUT=-1%；IOUT=5.0A		－	800
Static（ground）current	IQ	TA=25℃；VIN=4.3V，IOUT=2.5A	1	－	50	mA
		TA=25℃；VIN=4.3V，IOUT=5.0A		－	130	mA
Load regulation	SI	IOUT=10mA→4.5A，VIN=4.3V	1,2,3	－	2	%
Voltage regulation	SV	VIN=4.3V→26V，IOUT =10mA	1,2,3	－	1	%
Output noise voltage	VN	TA=25℃；CL=33μF，IOUT=10mA， f≤300KHz	4	－	150	μV
Output current limit	ILIM	TA=25℃；VIN=4.3V	4	－	6	A
Thermal shutoff temperature	TSD	TA=25℃；VIN=5.3V；IOUT=5.0A	4	－	160	℃

7  Typical Connection Diagram of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

Fig 33  HSK5250 Electrical test line connection diagram

8 Application Notes of HSK5250 Series Low Voltage Difference Linear DC to DC converter（LDO）

☆  The electronic inspecton point should be kept as close as possible at the root of the pin；
☆  It is strictly forbidden to bend the pins；
☆  To prevent the application of two or more absolute maximum ratings on the device at the same time；
☆  To prevent the device from falling off；
☆  To prevent the output and ground short circuit；
☆  To prevent the device from being reversed or dislocated；
☆  During assembly, the bottom of the product should be attached as close as possible to the circuit board to avoid damage to the pin, take shockproof measures for necessary ；
☆  Focus on device power consumption, the power consumption ,When the input/output voltage difference（VIN-VOUT） is large, output current IO should be smaller；When the input/output voltage difference（VIN-VOUT）is small ，output current IO should be larger； When the device power consumption is large, be sure to configure the appropriate heat sink to prevent the device damaged due to overheating or into the overheating protection status；
☆  Both positive and negative terminals of power supply shall be correctly connected when power is applied so as to avoid permanent damage to the device.；
☆  Anti-static measures should be taken during storage and transportation.