MP2345
26V, 2.5A, 600kHz, High-Efficiency,
Synchronous, Step-Down Converter
DESCRIPTION
FEATURES
The MP2345 is a high-efficiency, synchronous,
rectified, step-down, switch-mode converter
with built-in internal power MOSFETs. It offers a
very compact solution that achieves 2.5A of
continuous output current with excellent load
and line regulation over a wide input supply
range.
The MP2345’s switching edge is optimized for
low EMI. SW anti-ringing is employed to
address high-frequency radiation EMI issues.
Full protection features include over-current
protection (OCP) and thermal shutdown.
The MP2345 requires a minimal number of
readily
available,
standard,
external
components and is available in a space-saving,
6-pin TSOT23 package.
Wide 7.5V to 26V Operating Input Range
2.5A Load Current
90mΩ/40mΩ Low RDS(ON) Internal Power
MOSFETs
Internal Power-Save Mode for Light Load
600kHz Fixed Switching Frequency at CCM
Optimized for Low EMI
Internal Soft Start
Over-Current Protection (OCP) and Hiccup
Mode
Thermal Shutdown
Output Adjustable from 3.3V
Available in a TSOT23-6 Package
The MPL-AL5050 Inductor Series Matches
Best Performance
APPLICATIONS
RF-Enabled Devices
Stand-By Power Supply
White Goods
Flat-Panel Television and Monitors
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality
Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are registered
trademarks of Monolithic Power Systems, Inc. or its subsidiaries.
TYPICAL APPLICATION
Efficiency vs. Output Current
EFFICIENCY (%)
VOUT = 5V
MP2345 Rev. 1.1
6/9/2020
100
95
90
85
80
75
70
65
60
55
50
0.01
Vin=12V
Vin=7V
Vin=26V
0.1
1
OUTPUT CURRENT(A)
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1
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
ORDERING INFORMATION
Part Number*
MP2345GJ
Package
TSOT23-6
Top Marking
See Below
MSL Rating
1
* For Tape & Reel, add suffix –Z (e.g. MP2345GJ–Z).
TOP MARKING
BGU: Product code of MP2345GJ
Y: Year code
PACKAGE REFERENCE
TOP VIEW
IN
1
6
FB
SW
2
5
VCC
GND
3
4
BST
TSOT23-6
PIN FUNCTIONS
Pin #
Name
1
IN
2
SW
3
GND
4
BST
5
VCC
6
FB
MP2345 Rev. 1.1
6/9/2020
Description
Supply voltage. The MP2345 operates from a +7.5V to +26V input rail. C1 is needed to
decouple the input rail. Connect using wide PCB traces.
Switch output. Connect using wide PCB traces.
System ground. GND is the reference ground of the regulated output voltage. GND
requires special consideration during PCB layout. Connect GND with copper traces and
vias.
Bootstrap. Connect a capacitor between SW and BST to form a floating supply across the
high-side switch driver.
Internal LDO output. Decouple VCC with a 0.1μF to 0.22μF capacitor. VCC can be
biased by an external 5V output voltage through a diode.
Feedback. An external resistor divider from the output to GND tapped to FB sets the
output voltage. To prevent a current-limit runaway during a short-circuit fault condition, the
frequency foldback comparator lowers the oscillator frequency when the FB voltage is
below 396mV.
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2
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
ABSOLUTE MAXIMUM RATINGS (1)
VIN .................................................. -0.3V to +28V
VSW .....-0.6V (-5V < 10ns) to +28V (30V < 10ns)
VBST........................................................ VSW + 6V
All other pins ................................... -0.3V to +6V
Continuous power dissipation (TA = +25°C) (2) (4)
................................................................... 1.25W
Junction temperature ................................ 150°C
Lead temperature...................................... 260°C
Storage temperature ................... -65°C to 150°C
ESD Rating
Human-body model (HBM) ..................... ±2000V
Charged-device model (CDM)............... ±1000V
Recommended Operating Conditions (3)
Supply voltage (VIN) ........................ 7.5V to 26V
Output voltage (VOUT) ..............3.3V to VIN x DMAX
Operating junction temp (TJ). ....-40°C to +125°C
MP2345 Rev. 1.1
6/9/2020
Thermal Resistance
θJA
θJC
TSOT23-6
EV2345-J-00A (5) ……………..62…..24......°C/W
JESD51-7 (6) ………………..100……55......°C/W
NOTES:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX) - TA) / θJA. Exceeding the maximum allowable power
dissipation produces an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
5) Measured on EV2345-J-00A, 2-layer PCB, 64mmx48mm.
6) The value of θJA given in this table is only valid for comparison
with other packages and cannot be used for design purposes.
These values were calculated in accordance with JESD51-7,
and simulated on a specified JEDEC board. They do not
represent the performance obtained in an actual application.
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3
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
ELECTRICAL CHARACTERISTICS
VIN = 12V, TJ = -40°C to 125°C
value when TJ = 25°C.
Parameter
Supply current (quiescent)
HS switch on resistance
LS switch on resistance
Switch leakage
Current limit
Oscillator frequency
Foldback frequency
Maximum duty cycle
Minimum on time (8)
Feedback voltage
Feedback current
VIN under-voltage lockout
threshold rising
VIN under-voltage lockout
threshold hysteresis
VCC regulator
VCC load regulation
Soft-start period
(7)
, unless otherwise noted. Typical value is based on the average
Symbol
Iq
HSRDS-ON
LSRDS-ON
SWLKG
ILIMIT
fSW
fFB
DMAX
TON_MIN
VFB
IFB
Thermal hysteresis
(8)
Duty cycle = 40%, TJ = 25°C
VFB = 750mV
VFB = 200mV
VFB = 750mV
Min
3.5
500
775
VFB = 820mV
5.2
INUVVth
Typ
170
90
40
Max
4.5
600
0.2
93
90
791
10
807
50
Units
μA
mΩ
mΩ
μA
A
kHz
fSW
%
ns
mV
nA
6.3
7.5
V
1
5.5
700
INUVHYS
470
mV
VCC
4
1.5
V
%
ICC = 5mA
TSS
Thermal shutdown (8)
Condition
VFB = 1V
VBST-SW = 4V
VCC = 4V
10% to 90%
0.8
1.5
2.2
ms
TSD
150
°C
TSD_HYS
20
°C
NOTES:
7) Not tested in production, and guaranteed by over-temperature correlation.
8) Guaranteed by design and characterization test.
MP2345 Rev. 1.1
6/9/2020
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4
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs. Output Current
Efficiency vs. Output Current
VOUT = 5V
VOUT = 3.3V
100
95
90
85
80
75
70
65
60
55
50
0.01
Vin=12V
Vin=7V
Vin=26V
0.1
1
OUTPUT CURRENT (A)
100
95
90
85
80
75
70
65
60
55
50
0.01
EFFICIENCY (%)
EFFICIENCY (%)
VIN = 12V, VOUT = 5V, L = 10μH, TA = 25°C, unless otherwise noted.
10
Load Regulation
0.1
1
OUTPUT CURRENT (A)
0.3
LINE REGULATION (%)
0.4
0.3
0.2
0.1
0
Vin=12V
Vin=7V
Vin=26V
-0.1
-0.2
-0.3
0.2
0.1
0
-0.1
Io=0.1A
Io=1.25A
Io=2.5A
-0.2
-0.3
0
1
2
7.5
12.5
LOAD CURRENT (A)
Case Temperature Rise
17.5
VIN (V)
22.5
Enabled Supply Current vs. Input
Voltage
175
70
60
ENABLED SUPPLY
CURRENT(μA)
TEMPERATURE RISE (°C)
10
Line Regulation
0.5
LOAD REGULATION (%)
Vin=12V
Vin=7V
Vin=26V
50
170
40
30
165
20
10
0
-0.5
MP2345 Rev. 1.1
6/9/2020
160
0.5
1.5
CURRENT (A)
2.5
4
6
8
10
12
14
INPUT VOLTAGE (V)
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18
5
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 12V, VOUT = 5V, L = 10μH, TA = 25°C, unless otherwise noted.
Input/Output Ripple
Input/Output Ripple
IOUT = 0A
IOUT = 2.5A
CH1:
VOUT/AC
10mV/div.
CH2: VIN
50mV/div.
CH1:
VOUT/AC
10mV/div.
CH2: VIN
100mV/div.
CH3: SW
5V/div.
CH3: SW
10V/div.
CH4: IOUT
200mA/div
CH4: IOUT
1A/div
1μs/div.
1μs/div.
Start-Up through Input Voltage
Start-Up through Input Voltage
IOUT = 0A
IOUT = 2.5A
CH1: VOUT
2V/div.
CH2: VIN
10V/div.
CH1: VOUT
2V/div.
CH2: VIN
10V/div.
CH3: SW
10V/div.
CH4: IL
2A/div
CH3: SW
10V/div.
CH4: IL
2A/div
1ms/div.
1ms/div.
Shutdown through Input Voltage
Shutdown through Input Voltage
IOUT = 0A
IOUT = 2.5A
CH1: VOUT
2V/div.
CH2: VIN
10V/div.
CH1: VOUT
2V/div.
CH2: VIN
10V/div.
CH3: SW
10V/div.
CH4: IL
2A/div
CH3: SW
10V/div.
CH4: IL
2A/div
20ms/div.
MP2345 Rev. 1.1
6/9/2020
1ms/div.
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MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 12V, VOUT = 5V, L = 10μH, TA = 25°C, unless otherwise noted.
OCP Recovery
OCP Entry
IOUT = 0A
CH1: VOUT
5V/div.
CH1: VOUT
5V/div.
CH2: VIN
10V/div.
CH3: SW
10V/div.
CH2: VIN
10V/div.
CH3: SW
10V/div.
CH4: IL
5A/div
CH4: IL
5A/div
4ms/div.
4ms/div.
Load Transient Response
CH1:
VOUT/AC
10mV/div.
CH4: IL
1A/div
100μs/div.
MP2345 Rev. 1.1
6/9/2020
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MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
FUNCTIONAL BLOCK DIAGRAM
Figure 1: Functional Block Diagram
MP2345 Rev. 1.1
6/9/2020
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8
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
OPERATION
The MP2345 is a high-frequency, synchronous,
rectified, step-down, switch-mode converter
with built-in internal power MOSFETs. It offers a
very compact solution that achieves 2.5A of
continuous output current with excellent load
and line regulation over a wide input supply
range.
The MP2345 operates in a fixed-frequency,
peak-current-control mode to regulate the
output voltage. The internal clock initiates the
pulse-width modulation (PWM) cycle. The
integrated high-side power MOSFET (HS-FET)
turns on, and remains on until its current
reaches the value set by the COMP voltage
(VCOMP). When the power switch is off, it
remains off until the next clock cycle begins. If
the current in the power MOSFET does not
reach the current value set by COMP within
93% of one PWM period, the power MOSFET is
forced off.
Internal VCC Regulator
Most of the internal circuitries are powered by
the internal VCC regulator. This regulator takes
the VIN input and operates in the full VIN range.
When VIN is greater than its UVLO rising
threshold, the output of the regulator is in full
regulation. When VIN is lower than its UVLO
falling threshold, the internal VCC regulator
shuts off. A 0.1µF ceramic capacitor is required
for decoupling.
Error Amplifier (EA)
The error amplifier compares the FB voltage
with the internal 0.791V reference (REF) and
outputs a COMP voltage, which is used to
control the power MOSFET current. The
optimized internal compensation network
minimizes the external component counts and
simplifies the control loop design.
AAM Operation
The MP2345 uses advanced asynchronous
modulation (AAM) power-save mode for light
loads. The AAM voltage is set at 0.4V internally.
Under heavy-load conditions, VCOMP is higher
than VAAM. When the clock goes high, HS-FET
turns on and remains on until VILsense reaches
the value set by VCOMP. The internal clock resets
whenever VCOMP is higher than VAAM.
MP2345 Rev. 1.1
6/9/2020
Under light-load conditions, the value of VCOMP
is low. When VCOMP is less than VAAM, and VFB is
less than VREF, VCOMP ramps up until it exceeds
VAAM. During this time, the internal clock is
blocked, and the MP2345 skips some pulses for
pulse frequency modulation (PFM) mode,
achieving light-load power save.
Figure 2: Simplified AAM Control Logic
Under-Voltage Lockout (UVLO)
Under-voltage lockout (UVLO) is implemented
to protect the chip from operating at an
insufficient supply voltage. The UVLO
comparator monitors the input voltage. When
the input voltage is higher than the UVLO rising
threshold, the MP2345 powers up. It shuts off
when the input voltage is lower than the UVLO
falling threshold. It also has non-latch protection.
Internal Soft Start (SS)
Soft start (SS) is implemented to prevent the
converter output voltage from overshooting
during start-up. When the chip starts up, the
internal circuitry generates a soft-start voltage
that ramps up from 0V. The soft-start period
lasts until the voltage on the soft-start capacitor
exceeds the 0.791V reference voltage. At this
point, the reference voltage takes over. The
soft-start time is set internally to be about 1.5ms
from 10% to 90% of VOUT.
Over-Current Protection (OCP) and Hiccup
Mode
The MP2345 employs a cycle-by-cycle overcurrent limit when the inductor current peak
value exceeds the set current-limit threshold.
Meanwhile, the output voltage drops until FB is
below the under-voltage (UV) threshold,
typically 50% below the reference. Once UV is
triggered, the MP2345 enters hiccup mode to
restart the part periodically. This protection
mode is especially useful when the output
dead-shorts to ground. The average shortcircuit current is greatly reduced to alleviate
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9
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
thermal issues and to protect the regulator. The
MP2345 exits hiccup mode once the overcurrent condition is removed.
Thermal Shutdown
Thermal shutdown prevents the chip from
operating at exceedingly high temperatures.
When the silicon die temperature is higher than
150°C, the entire chip shuts down. When the
temperature is below its lower threshold
(typically 130°C), the chip is enabled again.
Floating Driver and Bootstrap Charging
The floating power MOSFET driver is powered
by an external bootstrap capacitor. This floating
driver has its own UVLO protection. This
UVLO’s rising threshold is 2.2V with a
hysteresis of 150mV. The bootstrap capacitor
voltage is regulated internally by VIN through D1,
C3, L1, and C2 (see Figure 3). If VIN - VSW is
more than 4V, U2 regulates M3 to maintain a
4V BST voltage across C3.
Circuit Start-Up and Shutdown
If VIN is higher than its UVLO threshold, the chip
starts up. The reference block starts first,
generating a stable reference voltage and
current, and then the internal regulator is
enabled. The regulator provides a stable supply
for the remaining circuitries.
In the shutdown procedure, the signaling path is
first blocked to prevent any fault triggering.
VCOMP and the internal supply rail are then
pulled down. The floating driver is not subject to
this shutdown command.
C3
Figure 3: Internal Bootstrap Charging
MP2345 Rev. 1.1
6/9/2020
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10
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
Table 2: Power Inductor Selection
APPLICATION INFORMATION
Setting the Output Voltage
The external resistor divider is used to set the
output voltage (see Typical Application on page
1). The feedback resistor (R1) also sets the
feedback loop bandwidth with the external
compensation capacitor. Calculate R2 with
Equation (1):
R1
R2
Part Number
Inductor
Value
Manufacturer
10µH
MPS
10μH
MPS
Select family
series (MPL-AL)
MPL-AL5050-100
Visit MonolithicPower.com under Products >
Inductors for more information.
(1)
V OUT 1
0.791V
Table 1 lists the recommended resistor values
for common output voltages.
Table 1: Resistor Selection for Common Output
Voltages
Selecting the Input Capacitor
The step-down converter has a discontinuous
input current, and requires a capacitor to supply
AC current to the converter while maintaining
the DC input voltage. For best performance,
use low-ESR capacitors. Ceramic capacitors
VOUT (V) R1 (kΩ) R2 (kΩ) Lo (µH)
3.3
80.6
25.5
10
5
80.6
15
10
Selecting the Inductor
A 1µH to 22µH inductor with a DC current rating
at least 25% percent higher than the maximum
load current is recommended for most
applications. For highest efficiency, the inductor
DC resistance should be less than 30mΩ. For
most designs, the inductance value can be
derived from Equation (2):
L1
VOUT (VIN VOUT )
VIN IL fOSC
(2)
with X5R or X7R dielectrics are highly
recommended because of their low ESR and
small temperature coefficients. For most
applications, a 22µF capacitor is sufficient.
Since the input capacitor (C1) absorbs the input
switching current, it requires an adequate ripple
current rating. The RMS current in the input
capacitor can be estimated with Equation (4):
IC1 ILOAD
IL(MAX ) ILOAD
IL
2
(3)
Under light-load conditions below 100mA, a
larger inductance is recommended for improved
efficiency.
MPS inductors are optimized and tested for use
with our complete line of integrated circuits.
Table 2 lists our power inductor
recommendations. Select a part number based
on your design requirements.
MP2345 Rev. 1.1
6/9/2020
(4)
The worst-case condition occurs at VIN = 2VOUT,
calculated using Equation (5):
Where ∆IL is the inductor ripple current.
Set the inductor current at approximately 30%
of the maximum load current. The maximum
inductor peak current can be calculated with
Equation (3):
VOUT VOUT
1
VIN VIN
I C1
ILOAD
2
(5)
For simplification, choose an input capacitor
with an RMS current rating greater than half of
the maximum load current.
The input capacitor can be electrolytic, tantalum,
or ceramic. When using electrolytic or tantalum
capacitors, a small, high-quality ceramic
capacitor (e.g. 1μF) should be placed as close
to the IC as possible. When using ceramic
capacitors, ensure that they have enough
capacitance to provide a sufficient charge to
prevent excessive voltage ripple at the input.
The input voltage ripple caused by capacitance
can be estimated with Equation (6):
VIN
ILOAD
V
V
OUT 1 OUT
fS C1 VIN
VIN
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(6)
11
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
Selecting the Output Capacitor
The output capacitor (C2) maintains the DC
output voltage. Ceramic, tantalum, or low-ESR
electrolytic capacitors are recommended. For
best results, use low-ESR capacitors to keep
the output voltage ripple low. The output
voltage ripple can be estimated with Equation
(7):
VOUT
(7)
VOUT VOUT
1
1
RESR
fS L1
VIN
8 fS C2
Where L1 is the inductor value and RESR is the
equivalent series resistance (ESR) value of the
output capacitor.
For ceramic capacitors, the capacitance
dominates
the
impedance
at
the
switchingfrequency, and causes the output
voltage ripple. For simplification, the output
voltage ripple can be estimated with Equation
(8):
∆VOUT
V
VOUT
1 OUT
VIN
8 fS L1 C2
2
(8)
Figure 4: Optional External Bootstrap Diode
Added to Enhance Efficiency
External VCC Diode
When VOUT is 5V, an optional external diode
from VOUT to VCC may enhance the efficiency
of the regulator (see Figure 5).
1N4148
C4
0.1µF
Figure 5: Optional External Diode Added to
Enhance Efficiency
In tantalum and electrolytic capacitors, the ESR
dominates the impedance at the switching
frequency. For simplification, the output ripple
can be estimated with Equation (9):
∆VOUT
VOUT
V
1 OUT
fS L1
VIN
RESR
(9)
The characteristics of the output capacitor also
affect the stability of the regulation system. The
MP2345 can be optimized for a wide range of
capacitance and ESR values.
External Bootstrap Diode
An optional, external diode may enhance the
efficiency of the regulator. The conditions of the
external diode are applied when the output
voltage is 5V.
In this case, it is recommended to connect an
external BST diode from VOUT to BST (see
Figure 4).
MP2345 Rev. 1.1
6/9/2020
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12
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
PCB Layout Guidelines (7)
Efficient PCB layout is critical for stable
operation. For best results, refer to Figure 6 and
follow the guidelines below:
1. Keep the connection of the input ground
and GND as short and wide as possible.
2. Connect the ground of the VCC capacitor to
the IC’s GND through multiple vias or wide
traces.
3. Keep the connection between the input
capacitor and IN as short and wide as
possible.
4. Ensure that all feedback connections are
short and direct.
Design Example
Table 3 is a design example following the
application guidelines for these specifications:
Table 3: Design Example
12V
VIN
5V
VOUT
2.5A
IO
Figure 7 and Figure 8 show the detailed
application
schematics.
The
typical
performance and circuit waveforms are shown
in the Typical Performance Characteristics
section on page 5. For more device applications,
please see the related evaluation board
datasheets.
5. Place
the
feedback
resistors
and
compensation components as close to the
chip as possible.
6. Route SW away from sensitive analog
areas, such as FB.
NOTE:
9)
The recommended layout is based on Figure 7: Typical
Application Circuit.
Top Layer
Bottom Layer
Figure 6: Recommended PCB Layout
MP2345 Rev. 1.1
6/9/2020
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13
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
TYPICAL APPLICATION CIRCUITS
1
12V
C1B
10µF
C1A
10µF
C1
0.1µF
D1
1N 4148
4
MP2345
C3
0.1µF
L1
10µH
2
3.3V/2.5A
C2
10µF
5
C4
0.1µF
C2A
NS
C2B
100µF
R1
80.4kΩ
6
R2
25.5k
Ω
3
C5
15pF
Figure 7: 3.3V/2.5A Output
1
12V
C1B
10µF
C1A
10µF
C1
0.1µF
D1
1N 4148
4
MP2345
C3
0.1µF
2
L1
10µH
5V/2.5A
C2
10µF
5
C4
0.1µF
C2B
100µF
R1
80.4kΩ
6
3
C2A
NS
R2
15kΩ
C5
15pF
Figure 8: 5V/2.5A Output
MP2345 Rev. 1.1
6/9/2020
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.
14
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
PACKAGE INFORMATION
TSOT23-6
See note 7
EXAMPLE
TOP MARK
PIN 1 ID
IAAAA
RECOMMENDED LAND PATTERN
TOP VIEW
SEATING PLANE
SEE DETAIL''A''
FRONT VIEW
SIDE VIEW
NOTE:
DETAIL "A"
MP2345 Rev. 1.1
6/9/2020
1) ALL DIMENSIONS ARE IN MILLIMETERS
.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD FLASH
,
PROTRUSION OR GATE BURR.
3) PACKAGE WIDTH DOES NOT INCLUDE INTERLEAD FLASH
OR PROTRUSION.
4) LEAD COPLANARITY(BOTTOM OF LEADS AFTER FORMING)
SHALL BE 0.10 MILLIMETERS MAX.
5) DRAWING CONFORMS TO JEDEC MO-193, VARIATION AB.
6) DRAWING IS NOT TO SCALE.
7) PIN 1 IS LOWER LEFT PIN WHEN READING TOP MARK
FROM LEFT TO RIGHT, (SEE EXAMPLE TOP MARK)
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.
15
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
CARRIER INFORMATION
ABCD
Pin1
1
ABCD
ABCD
1
1
ABCD
1
Feed Direction
Part
Number
Package
Description
Quantity/
Reel
Quantity/
Tray
Quantity/
Tube
Reel
Diameter
Carrier
Tape
Width
Carrier
Tape
Pitch
MP2345GJ–
Z
TSOT23-6
3000
N/A
N/A
7 in.
8 mm
4 mm
MP2345 Rev. 1.1
6/9/2020
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.
16
MP2345 – 26V, 2.5A, SYNCHRONOUS, STEP-DOWN CONVERTER
Revision History
Revision #
R1.1
Revision date
5/22/2020
Description
Pages
Updated
update the JESD51-7 (6) …………..…100…..55........°C/W
Page 3
Add ESD Rating
Page 3
Add MSL Rating
Page 2
Add Carrier information
Page 16
Add the MPS inductor information.
Page 1
Page 11
NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that thirdparty Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not
assume any legal responsibility for any said applications.
MP2345 Rev. 1.1
6/9/2020
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2020 MPS. All Rights Reserved.
17
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