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TS33000-M015QFNR 데이터시트(PDF) 1 Page - Semtech Corporation

부품명 TS33000-M015QFNR
상세설명  High Efficiency Synchronous DC/DC Buck Converter
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제조업체  SEMTECH [Semtech Corporation]
홈페이지  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

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TS33000
Final Datasheet
Rev 1.9
May 1, 2015
www.semtech.com
1 of 17
Semtech
TS33000
TRIUNE PRODUCTS
High Efficiency Synchronous
DC/DC Buck Converter
Features
Fixed Output option has automatic low power PFM mode
for reduced quiescent current at light loads
2.25MHz +/- 10% fixed switching frequency
Fixed output voltages: 0.8V, 0.9V, 1.2V, 1.5V, 1.8V,
2.5V, and 3.3V with +/- 2% output tolerance
Input voltage range: 2.0V to 5.5V
Voltage mode PWM control with input voltage feed-
forward compensation
Voltage supervisor for VOUT reported at the PG pin
Input supply under voltage lockout
Soft start for controlled startup with no overshoot
Full protection for over-current, over-temperature,
and VOUT overvoltage
Less than 100nA in shutdown mode
Multiple enable pins for flexible system sequencing
Low external component count
Junction operating temperature -40C to 125C
Packaged in a 16 pin QFN (3x3)
Applications
Point of load
Systems with deep submicron ASICs/FPGAs
Set-top box
Communications equipment
Portable and handheld equipment
Description
The TS33000 is a DC/DC synchronous switching regulator
with fully integrated power switches, internal compensation,
and full fault protection. The switching frequency of 2.25MHz
enables the use of extremely small filter components, resulting
in smaller board space and reduced BOM costs.
When the input current is greater than approximately 50mA,
the TS33000 utilizes PWM voltage mode feedback with input
voltage feed-forward to provide a wide input voltage range
without the need for external compensation.
For the Fixed Output option, when the input current is less
than 50mA, the device uses a PFM mode to provide increased
efficiency at light loads. The cross over between PFM mode
and PWM is automatic and has hysteresis to prevent oscillation
between the modes. Additionally, the nLP mode pin can be
used to force the device into PWM mode to reduce the output
ripple, if needed (Fixed Output only).
The TS33000 integrates a wide range of protection circuitry;
including input supply under-voltage lockout, output under-
voltage, output over-voltage, soft start, high side FET and low
side FET current limits, and thermal shutdown.
Typical Applications
VOUT
4.7uF
1.5uH
Fixed Output
EN
VSW
VCC
FB
VOUT
Sense
2x4.7uF
VCC
EN
PG
PG
10 kohm
(optional)
VCC or VOUT
nLP
nLP


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